Tootfinder

#ndwgoecountdown Jupiter: Gasriese im Sonnensystem
Jupiter ist der größte Planet im Sonnensystem; seine Wolkenwirbel und -bänder geben uns Rätsel auf. Unter Eisschichten verbergen seine Monde Europa und Ganymed Ozeane, in denen sich Leben entwickelt haben könnte. Das MPS stellt Weltrauminstrumente vor, die an Bord der Raumsonde JUICE auf dem Weg zum Jupiter sind. Mit Wolkenwir…

Why Wide Jupiter-Mass Binary-Objects Cannot Form
Simon Portegies Zwart (Leiden Observatory, Leiden University), Erwan Hochart (Leiden Observatory, Leiden University)
https://arxiv.org/abs/2507.11786

Why Wide Jupiter-Mass Binary-Objects Cannot Form
The discovery of $N_{\rm pp} = 40$ Jupiter-mass binary objects (JuMBOs) alongside $N_{\rm p} = 500$ free-floating Jupiter-mass objects (JMOs) in the Trapezium cluster's central portion raises questions about their origin \cite{2023arXiv231001231P}. \citet{2024NatAs...8..756W} argue that the rate at which two planets orbiting the same star are stripped by a close encounter can explain about half the observed JuMBOs in the Trapezium cluster. Although, their cross-section calculations agree with o…

Orbital Decay of the Ultra-hot Jupiter TOI-2109b - Tidal Constraints and Transit-timing Analysis: #planet’s orbital decay to understand how stars dissipate energy.

🇺🇦 #NowPlaying on KEXP's #SonicReducer
Home Front:
🎵 Jupiter
#HomeFront
https://arewenothomefront.bandcamp.com/track/jupiter
https://open.spotify.com/track/0yeFvp56VaeHoNs2O0J7c3

Sometimes the mainstream news resembles bad horoscopes where ordinary frequent things are blown into alarms. The moon entering Aquarius is no more 'transformative' than it was last month, or the hundreds of months before that. OMG Mars square Jupiter, just like a year ago.
Oh, and before you jump on horoscopes, I'm speaking metaphorically about mainstream news 😅 In this era of Attention Seeking, the mundane has no place.
Oh look? …

🇺🇦 #NowPlaying on #BBC6Music's #HuwStephens
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

Re-analysis of 10 Hot-Jupiter Atmospheres with disequilibrium chemistry retrieval
Deborah Bardet, Quentin Changeat, Olivia Venot, Emilie Panek
https://arxiv.org/abs/2506.12806

Re-analysis of 10 Hot-Jupiter Atmospheres with disequilibrium chemistry retrieval
Constraining the chemical structure of exoplanetary atmospheres is pivotal for interpreting spectroscopic data and understanding planetary evolution. Traditional retrieval methods often assume thermochemical equilibrium or free profiles, which may fail to capture disequilibrium processes like photodissociation and vertical mixing. This study leverages the TauREx 3.1 retrieval framework coupled with FRECKLL, a disequilibrium chemistry model, to address these challenges. The study aims to (1) ass…

Okee!…?
Sone art schlager-hiphop
RAF Camora x Apache 207 - JUPITER
https://www.youtube.com/watch?v=3RvBj77W9sQ
> JUPITER” hier streamen: http…

Jupiter's Auroral Ionosphere - Juno Microwave Radiometer Observations of Energetic Electron Precipitation Events: #Juno: https://astrobites.org/2025/06/05/juno_microwave_jupiter/

🇺🇦 #NowPlaying on #BBC6Music's #RadcliffeAndMaconie
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

🇺🇦 #NowPlaying on BBCRadio3's #InTune
Gustav Holst, The National Youth Orchestra & Edward Gardner:
🎵 Jupiter (The Planets)
#GustavHolst #TheNationalYouthOrchestra #EdwardGardner
#Spotify

Dust production rates in Jupiter-family comets II: Trends and population insights from ATLAS photometry of 116 JFCs
A. Fraser Gillan, Alan Fitzsimmons, Larry Denneau, Robert J. Siverd, Ken W. Smith, John L. Tonry, David R. Young
https://arxiv.org/abs/2506.09192

Dust production rates in Jupiter-family comets II: Trends and population insights from ATLAS photometry of 116 JFCs
Jupiter-family comets (JFCs) have orbital periods of less than 20 years and therefore undergo more frequent sublimation compared to other comet populations. The JFCs therefore represent the ideal dynamical population for investigating the dust production rates at high-cadence. We analyzed observations by the Asteroid Terrestrial-impact Last Alert System (ATLAS) of 74 JFCs that reached perihelion in 2022 and 2023. The work contained in this study builds upon our previous work (Gillan et al. 2024…

A Time-resolved High-resolution Spectroscopic Analysis of Ionized Calcium and Dynamical Processes in the Ultra-hot Jupiter HAT-P-70 b: #GHOST Spies Ultra-hot Jupiter With Ultra-fast Winds: https://noirlab.edu/public/blog/ghost-spies-jupiter/ - study of HAT-P-70 b’s atmosphere highlights the spectacular spectroscopic abilities of Gemini South’s GHOST.

Comparing observations of the closely located JUICE and STEREO-A spacecraft during the widespread solar energetic particle event of 2024 May 13
L. Rodr\'iguez-Garc\'ia, E. Palmerio, M. Pinto, N. Dresing, C. M. S. Cohen, R. G\'omez-Herrero, J. Gieseler, F. Santos, F. Espinosa Lara, I. Cernuda, M. Mewes, C. Vallat, O. Witasse, N. Altobelli
…

Comparing observations of the closely located JUICE and STEREO-A spacecraft during the widespread solar energetic particle event of 2024 May 13
JUICE was launched in April 2023, and it is now in its cruise phase to Jupiter, where it is scheduled to arrive in July 2031. JUICE carries a radiation monitor, namely the RADiation hard Electron Monitor (RADEM) to measure protons, electrons, and ions, detecting particles coming mainly from the anti-Sun direction. On 2024 May 13, a large solar energetic particle (SEP) event took place in association with an eruption close to the western limb of the Sun as seen from Earth. Providentially, at tha…

Modelling the 3D atmospheric structure of the cold Jupiter WD1856 534b orbiting a white dwarf
Pascal A. Noti, Elspeth K. H. Lee, Daniel Kitzmann, Ryan MacDonald, Sydney Jenkins, Arjun Savel, Mary Anne Limbach, Christoph Mordasini
https://arxiv.org/abs/2507.05422

Modelling the 3D atmospheric structure of the cold Jupiter WD1856+534b orbiting a white dwarf
WD-1856b+534b (WD-1856b) is to date the only detected cold Jupiter outside of our Solar System. This cold Jupiter can provide useful information about the cold giants in our Solar System. Recent JWST observations have targeted WD-1856b, with more scheduled in the near future. To support the interpretation of these observations, we simulated WD-1856b using a three-dimensional (3D) General Circulation Model (GCM) and produced synthetic emission spectra of the planet. We used the Exo-FMS GCM with …

Geometric Considerations in Hot Jupiter Magnetic Drag Models
Duncan A. Christie, Tom M. Evans-Soma, Nathan J. Mayne, Krisztian Kohary
https://arxiv.org/abs/2507.08511

Geometric Considerations in Hot Jupiter Magnetic Drag Models
Magnetic fields are expected to impact the atmospheric dynamics of hot and ultra-hot Jupiters due to their increased ionization fractions, compared to that of cooler exoplanets, but our ability to model these magnetic processes is limited by the different coupling regimes between the day and night sides of the planets. One common approach is to approximate the magnetic interactions as a drag acting on the atmosphere. In this work, we examine, within the context of this drag approximation, the i…

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Antonio Vivaldi, Peter Whelan, Jupiter & Thomas Dunford:
🎵 Bassoon Concerto in G minor, RV.495
#AntonioVivaldi #PeterWhelan #Jupiter #ThomasDunford

JWST Reveals Spectral Tracers of Recent Surface Modification on #Europa: https://iopscience.iop.org/article/10.3847/PSJ/adcab9 -> SwRI scientists contribute to uncovering ongoing surface modification on Jupiter’s moon Europa: https://www.swri.org/newsroom/press-releases/swri-scientists-contribute-uncovering-ongoing-surface-modification-jupiter-s-moon-europa

On Hot Jupiters and Stellar Clustering: The Role of Host Star Demographics
Mika V. Kontiainen, Cathie J. Clarke, Andrew J. Winter
https://arxiv.org/abs/2507.11225

On Hot Jupiters and Stellar Clustering: The Role of Host Star Demographics
The variation in hot Jupiter (HJ) occurrence across stellar environments holds clues as to the dominant formation channels of these extreme planets. Recent studies suggest HJ hosts preferentially reside in regions of high phase space density, possibly reflecting natal environmental conditions. These regions are kinematically cold (|v| < 40 km/s), prompting the alternative hypothesis that the correlation reflects an age bias: planetary systems in overdensities are systematically younge…

Have you ever looked at clouds or water and tried to understand the complex system of swirls and ribbons?
To take it a step further: Jupiter, the largest planet in our solar system, and its moons still pose puzzles of this kind, which we hope to unravel with the instruments aboard the JUICE spacecraft on its journey there.
Here's a hands-on experiment that explains how the gas giant's cloud swirls are formed.
@…

Galactic echoes
Rimpei Chiba, Jupiter Ding, Chris Hamilton, Matthew W. Kunz, Scott Tremaine
https://arxiv.org/abs/2506.16512 https://…

Galactic echoes
Gaia has revealed a variety of substructures in the phase space of stars in the Solar neighborhood, including the vertical `Snail' in $(z,v_z)$ space. Such substructures are often interpreted as the incompletely phase-mixed response of the disc stars to a single perturbation, such as an impulsive encounter with a satellite galaxy. In this paper we consider the possibility that such structures contain manifestations of phase space echoes. First established in plasma physics in the 1960s, echoes …

Replaced article(s) found for physics.space-ph. https://arxiv.org/list/physics.space-ph/new
[1/1]:
- Jupiter's ultraviolet auroral bridge: the influence of the solar wind on polar auroral morphology
L. A. Head, et al.

TOI-1259Ab: A Warm Jupiter Orbiting a K-dwarf White-Dwarf Binary is on a Well-aligned Orbit
Hugo Veldhuis, Juan I. Espinoza-Retamal, Gudmundur Stefansson, Alexander P. Stephan, David V. Martin, David Bruijne, Suvrath Mahadevan, Joshua N. Winn, Cullen H. Blake, Fei Dai, Rachel B. Fernandes, Evan Fitzmaurice, Eric B. Ford, Mark R. Giovinazzi, Arvind F. Gupta, Samuel Halverson, Te Han, Daniel Krolikowski, Joe Ninan, Cristobal Petrovich, Paul Robertson, Arpita Roy, Christian Schwab, Ryan T…

TOI-1259Ab: A Warm Jupiter Orbiting a K-dwarf White-Dwarf Binary is on a Well-aligned Orbit
The evolution of one member of a stellar binary into a white dwarf has been proposed as a mechanism that triggers the formation of close-in gas giant planets. The star's asymmetric mass loss during the AGB stage gives it a "kick" that can initiate Eccentric Lidov-Kozai oscillations, potentially causing a planet around the secondary star to migrate inwards and perturbing the eccentricity and inclination of its orbit. Here we present a measurement of the stellar obliquity of TOI-1259Ab, a gas gia…

🇺🇦 #NowPlaying on KEXP's #SoundsOfSurvivance
Jupiter & Okwess, Mare Advertencia:
🎵 Orgullo
#Jupiter #Okwess #MareAdvertencia
https://open.spotify.com/track/0mOfkS0vMqU8KRDkDXjhd9

🇺🇦 #NowPlaying on #BBC6Music's #ChrisHawkins
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

A Transiting Giant on a 7.7-Year Orbit Revealed by TTVs in the TOI-201 System
Gracjan Maciejewski, Weronika {\L}oboda
https://arxiv.org/abs/2507.11504 http…

A Transiting Giant on a 7.7-Year Orbit Revealed by TTVs in the TOI-201 System
We report the detection and characterization of TOI-201 c, a long-period transiting companion to the warm Jupiter TOI-201 b. Its presence was first inferred from high-amplitude transit timing variations (TTVs) in TOI-201 b, pointing to a massive outer body on a $7.7^{+1.0}_{-0.6}$-year eccentric orbit. This prediction was confirmed when TESS observed a transit of TOI-201 c, precisely constraining its orbital geometry. A joint fit to TTVs, transit photometry, and archival radial velocities yield…

The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition
Vatsal Panwar, Matteo Brogi, Krishna Kanumalla, Michael R. Line, Siddharth Gandhi, Peter C. B. Smith, Jacob L. Bean, Lorenzo Pino, Arjun B. Savel, Joost P. Wardenier, Heather Cegla, Hayley Beltz, Megan Weiner Mansfield, Jorge A. Sanchez, Jean-Michel D\'esert, Luis Welbanks, Viven Parmentier, Changwo…

The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition
Ultra-hot Jupiters are a class of gas-giant exoplanets that show a peculiar combination of thermochemical properties in the form of molecular dissociation, atomic ionization, and inverted thermal structures. Atmospheric characterization of gas giants lying in the transitional regime between hot and ultra-hot Jupiters can help in understanding the physical mechanisms that cause the fundamental transition in atmospheres between the two classes of hot gas giants. Using Doppler spectroscopy with IG…

JWST Near Infrared Spectroscopy of High Albedo Jupiter Trojans: A New Surface Type in the Trojan Belt
Michael E. Brown, Ian Wong, Matthew Belyakov
https://arxiv.org/abs/2506.19922

JWST Near Infrared Spectroscopy of High Albedo Jupiter Trojans: A New Surface Type in the Trojan Belt
We present 0.8 to 5 $μ$m JWST spectra of four $\sim$20 km diameter Jupiter Trojans known to have albedos elevated above the values typical in the remaining Trojan population. The spectra of these four high albedo Jupiter Trojans are all similar, with red slopes in the optical-IR transition region, a break to lower slopes at 1.3 $μ$m, and a broad absorptions from 2.8 to 4 $μ$m. The 0.8 to 2.5 $μ$m spectra of these objects match the spectra of neither the well-known "red" and "less-red" Jupit…

🇺🇦 #NowPlaying on #BBC6Music's #HuwStephens
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

The Formation of Double Hot Jupiter Systems through von Zeipel–Lidov–Kozai Migration: #planets and two stars can produce something rare - double hot Jupiters: https://news.yale.edu/2025/06/18/new-study-offers-double-dose-hot-jupiters

A Hot Jupiter with a Retrograde Orbit around a Sun-like Star and a Toy Model of Hot Jupiters in Wide Binary Star Systems
Steven Giacalone, Andrew W. Howard, Ryan A. Rubenzahl, Fei Dai, Luke B. Handley, Howard Isaacson, Samuel Halverson, Max Brodheim, Matt Brown, Theron W. Carmichael, William Deich, Benjamin J. Fulton, Steven R. Gibson, Grant M. Hill, Bradford Holden, Aaron Householder, Russ R. Laher, Kyle Lanclos, Joel Payne, Erik A. Petigura, Arpita Roy, Christian Schwab, Martin M. Si…

A Hot Jupiter with a Retrograde Orbit around a Sun-like Star and a Toy Model of Hot Jupiters in Wide Binary Star Systems
We report an observation of a transit of the hot Jupiter (HJ) KELT-23A b with the Keck Planet Finder spectrograph and a measurement of the sky-projected obliquity ($λ$) of its Sun-like ($T_{\rm eff} \approx 5900$ K) host star. We measured a projected stellar obliquity of $λ\approx 180^\circ$, indicating that the orbit of the HJ is retrograde relative to the direction of the stellar spin. Due to the slow sky-projected rotational velocity of the host star ($v \sin{i_\star} \approx 0.5$ km s$^{-…

🇺🇦 #NowPlaying on BBCRadio3's #ThisClassicalLife
Gustav Holst, Los Angeles Philharmonic & Zubin Mehta:
🎵 Jupiter (The Planets)
#GustavHolst #LosAngelesPhilharmonic #ZubinMehta

🇺🇦 #NowPlaying on #BBC6Music's #NickGrimshaw
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

NLTE atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations
L. Fossati, A. G. Sreejith, T. Koskinen, A. Bonfanti, D. Shulyak, F. Borsa, S. P. D. Borthakur, P. E. Cubillos, M. E. Young
https://arxiv.org/abs/2506.01132

NLTE atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations
We model the atmosphere of the ultra-hot Jupiter (UHJ) WASP-178b accounting for NLTE effects and compare synthetic transmission spectra with NUV and optical observations. We use the HELIOS code (LTE) in the lower and the Cloudy code (LTE or NLTE) in the middle and upper atmosphere to compute the temperature-pressure (TP) and abundance profiles. We further use Cloudy to compute the theoretical planetary transmission spectrum both in LTE and NLTE for comparison with observations. We find an isoth…

The TESS Grand Unified Hot Jupiter Survey. III. Thirty More Giant Planets
Samuel W. Yee, Joshua N. Winn, Joel D. Hartman, Joseph E. Rodriguez, George Zhou, David W. Latham, Samuel N. Quinn, Allyson Bieryla, Karen A. Collins, Jason D. Eastman, Kevin I. Collins, Dennis M. Conti, Eric L. N. Jensen, David R. Anderson, \"Ozg\"ur Ba\c{s}t\"urk, David Baker, Khalid Barkaoui, Matthew P. Battley, Daniel Bayliss, Thomas G. Beatty, Yuri Beletsky, Alexander A. Belinski, Zouhair Benk…

The TESS Grand Unified Hot Jupiter Survey. III. Thirty More Giant Planets
We present the discovery of 30 transiting giant planets that were initially detected using data from NASA's Transiting Exoplanet Survey Satellite (TESS) mission. These new planets orbit relatively bright ($G \leq 12.5$) FGK host stars with orbital periods between 1.6 and 8.2 days, and have radii between 0.9 and 1.7 Jupiter radii. We performed follow-up ground-based photometry, high angular-resolution imaging, high-resolution spectroscopy and radial velocity monitoring for each of these objects …

Multiplicity of young isolated #PlanetaryMassObjects in Taurus and Upper Scorpius: https://arxiv.org/abs/2506.14380 -> "Despite the limitations of small-number statistics and variations in spatial resolution and sensitivity, our results, combined with previous high-spatial-resolution surveys, suggest a notable difference in the multiplicity properties of objects below 25 M_Jupiter between Upper Sco and Taurus."

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
Teodoro Bau, Deniel Perer & Jean-Baptiste Antoine Forqueray:
🎵 La Rameau & Jupiter
#TeodoroBau #DenielPerer #JeanBaptisteAntoineForqueray

Disentangling Metallicity Effects in Hot Jupiter Occurrence Across Galactic Birth Radius and Phase-Space Density
Rayna Rampalli, Melissa K. Ness, Elisabeth R. Newton, Andrew Vanderburg, Tobias Buck, Jessica Mills
https://arxiv.org/abs/2506.16511

Disentangling Metallicity Effects in Hot Jupiter Occurrence Across Galactic Birth Radius and Phase-Space Density
We explore how the correlation between host star metallicity and giant planets shapes hot Jupiter occurrence as a function of Galactic birth radius (\rbirth) and phase-space density in the Milky Way disk. Using the GALAH and APOGEE surveys and a galaxy from the NIHAO simulation suite, we inject hot Jupiters around stars based on metallicity power laws, reflecting the trend that giant planets preferentially form around metal-rich stars. For \rbirth\ $\geq 5$ kpc, hot Jupiter occurrence decreases…

🇺🇦 #NowPlaying on BBCRadio3's #ClassicalLive
Wolfgang Amadeus Mozart, Ulster Orchestra & Michael Collins:
🎵 Symphony No. 41 in C major, K551 'Jupiter'
#WolfgangAmadeusMozart #UlsterOrchestra #MichaelCollins #newRelease 🆕 album
https://open.spotify.com/track/4EmXTia9LfCyhaLUGkatxq

A Highly Carbon-Rich Dayside and Disequilibrium Chemistry in the Ultra-Hot Jupiter WASP-19b
Suman Saha, James S. Jenkins
https://arxiv.org/abs/2507.02797 h…

A Highly Carbon-Rich Dayside and Disequilibrium Chemistry in the Ultra-Hot Jupiter WASP-19b
Ultra-hot Jupiters (UHJs) offer exceptional opportunities for detailed atmospheric characterization via emission spectroscopy. Here we present a comprehensive analysis of the dayside atmosphere of WASP-19b$\unicode{x2014}$one of the shortest-period UHJs$\unicode{x2014}$using archival JWST NIRSpec/PRISM observations spanning 0.6-5.3 $μ$m. We report robust detections of H$_2$O (16.44 $σ$), CO (5.47 $σ$), and CO$_2$ (10.72 $σ$), along with marginal detections of CH$_4$ (3.76 $σ$) and C$_2$H$_…

Predictions of the LSST Solar System Yield: Near-Earth Objects, Main Belt Asteroids, Jupiter Trojans, and Trans-Neptunian Objects
Jacob A. Kurlander, Pedro H. Bernardinelli, Megan E. Schwamb, Mario Juric, Joseph Murtagh, Colin Orion Chandler, Stephanie R. Merritt, David Nesvorny, David Vokrouhlicky, R. Lynne Jones, Grigori Fedorets, Samuel Cornwall, Matthew J. Holman, Siegfried Eggl, Drew Oldag, Maxine West, Jeremy Kubica, Peter Yoachim, Joachim Moeyens, Kathleen Kiker, Laura E. Buchan…

Predictions of the LSST Solar System Yield: Near-Earth Objects, Main Belt Asteroids, Jupiter Trojans, and Trans-Neptunian Objects
The NSF-DOE Vera C. Rubin Observatory is a new 8m-class survey facility presently being commissioned in Chile, expected to begin the 10yr-long Legacy Survey of Space and Time (LSST) by the end of 2025. Using the purpose-built Sorcha survey simulator (Merritt et al. In Press), and near-final observing cadence, we perform the first high-fidelity simulation of LSST's solar system catalog for key small body populations. We show that the final LSST catalog will deliver over 1.1 billion observations …

This https://arxiv.org/abs/2505.18941 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Orbital Decay of the Shortest-Period Hot Jupiter, TOI-2109b: Tidal Constraints and Transit-Timing Analysis
TOI-2109b is the hot Jupiter with the shortest orbital period ($\sim16\,$hr). At this close distance, strong tidal interactions can produce a significant exchange of angular momentum with the star. Since the orbital period of this planet is shorter than the stellar rotation period, TOI-2109b may be an optimal candidate for studying orbital decay. This process depends on how efficiently the star and the planet dissipate energy, due mainly to interior mechanisms that are poorly constrained in exo…

The Evolution of Jupiter and Saturn as a function of the Semi-convective Parameter R$_{\rho}$
Ankan Sur, Adam Burrows, Roberto Tejada Arevalo
https://arxiv.org/abs/2506.19041

The Evolution of Jupiter and Saturn as a function of the Semi-convective Parameter R$_ρ$
Computed using the APPLE planetary evolution code, we present updated evolutionary models for Jupiter and Saturn that incorporate helium rain, non-adiabatic thermal structures, and "fuzzy" extended heavy-element cores. Building on our previous Ledoux-stable models, we implement improved atmospheric boundary conditions that account for composition-dependent effective temperatures and systematically explore the impact of varying the density ratio parameter R$_ρ$, which governs in an approximate …

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
Freiburg Baroque Orchestra, Wolfgang Amadeus Mozart & René Jacobs:
🎵 Symphony No 41 in C, 'Jupiter'
#FreiburgBaroqueOrchestra #WolfgangAmadeusMozart #RenéJacobs

🇺🇦 #NowPlaying on #BBC6Music's #MaryAnneHobbs
3D:
🎵 Jupiter
#3D
https://3trianglesrecords.bandcamp.com/album/3d
Please 🔁 BOOST to share what you like
- your followers don't see if you ⭐ favourite a post

The HUSTLE Program: The UV to Near-IR Transmission Spectrum of the Hot Jupiter KELT-7b
Carlos Gasc\'on, Mercedes L\'opez-Morales, Ryan J. MacDonald, Joanna K. Barstow, Victoria A. Boehm, Hannah R. Wakeford, Munazza K. Alam, Lili Alderson, Natasha E. Batalha, Charlotte E. Fairman, David Grant, Nikole K. Lewis, Mark S. Marley, Sarah E. Moran, Kazumasa Ohno, Guillem Anglada-Escud\'e, Ignasi Ribas

The HUSTLE Program: The UV to Near-IR Transmission Spectrum of the Hot Jupiter KELT-7b
The ultraviolet and optical wavelength ranges have proven to be a key addition to infrared observations of exoplanet atmospheres, as they offer unique insights into the properties of clouds and hazes and are sensitive to signatures of disequilibrium chemistry. Here we present the 0.2-0.8 $μ$m transmission spectrum of the Teq = 2000 K Jupiter KELT-7b, acquired with HST WFC3/UVIS G280 as part of the HUSTLE Treasury program. We combined this new spectrum with the previously published HST WFC3/IR …

Investigating Magnetic Field Fluctuations in Jovian Auroral Electron Beams
A. Salveter, J. Saur, G. Clark, A. Sulaiman, B. H. Mauk, J. E. P. Connerney, B. Bonfond
https://arxiv.org/abs/2507.02174

Investigating Magnetic Field Fluctuations in Jovian Auroral Electron Beams
The Juno spacecraft provides a unique opportunity to explore the mechanisms generating Jupiter's aurorae. Past analyses of Juno data immensely advanced our understanding of its auroral acceleration processes, however, few studies utilized multiple instruments on Juno in a joint systematic analysis. This study uses measurements from the Juno Ultraviolet Spectrograph (UVS), the Jupiter Energetic particle Detector Instrument (JEDI), and the Juno Magnetometer (MAG) from the first 20 perijoves. On m…

🇺🇦 #NowPlaying on #BBC6Music's #TheMorningAfterMix
Patrick Wolf:
🎵 Jupiter
#PatrickWolf

A Multi-Species Atmospheric Escape Model with Excited Hydrogen and Helium: Application to HD209458b
Anna Ruth Taylor, Tommi T. Koskinen, Luca Argenti, Nicholas Lewis, Chenliang Huang, Anthony Arfaux, Panayotis Lavvas
https://arxiv.org/abs/2506.08232

A Multi-Species Atmospheric Escape Model with Excited Hydrogen and Helium: Application to HD209458b
Atmospheric escape shapes exoplanet evolution and star-planet interactions, with He I 10830 Å absorption serving as a key tracer of mass loss in hot gas giants. However, transit depths vary significantly across observed systems for reasons that remain poorly understood. HD209458b, the archetypal hot-Jupiter, exhibits relatively weak He I 10830 Å and H$α$ absorption, which has been interpreted as evidence for a high H/He ratio (98/2), possibly due to diffusive separation. To investigate this …

🇺🇦 #NowPlaying on KEXP's #AfternoonShow
Africa Express feat. Onipa, Jupiter Bokondji, Otim Alpha, Damon Albarn & Joan as Police Woman:
🎵 Invocation
#AfricaExpress #Onipa #JupiterBokondji #OtimAlpha #DamonAlbarn
https://open.spotify.com/track/731Gyzur636Go6vaFTjr7R

A circularly polarized low-frequency radio burst from the exoplanetary system HD 189733
X. Zhang, P. Zarka, J. N. Girard, C. Tasse, A. Loh, E. Mauduit, F. G. Mertens, E. Bonnassieux, C. K. Louis, J-M. Grie{\ss}meier, J. D. Turner, L. Lamy, A. Strugarek, S. Corbel, B. Cecconi, O. Konovalenko, V. Zakharenko, O. Ulyanov, P. Tokarsky, M. Tagger
https://

A circularly polarized low-frequency radio burst from the exoplanetary system HD 189733
We aim to detect low-frequency radio emission from exoplanetary systems, which can provide insights into planetary magnetic fields, star-planet interactions, stellar activity, and exo-space weather. The HD 189733 system, hosting a well-studied hot Jupiter, is a prime target for such searches. We conducted NenuFAR imaging observations in the 15-62 MHz range, in order to cover the entire orbital phase of HD 189733 b. Dynamic spectra were generated for the target and other sources in the field, fo…

🇺🇦 #NowPlaying on #BBC6Music's #FocusBeats
Self Jupiter:
🎵 Layers (instrumental)
#SelfJupiter
https://theorderlabel.bandcamp.com/album/layers
https://open.spotify.com/track/5MOK4EAswnJnKn5fNisNLz

An Energy Perspective of Core Erosion in Gas Giant Planets
J. R. Fuentes, Christopher R. Mankovich, Ankan Sur
https://arxiv.org/abs/2507.05109 https://

An Energy Perspective of Core Erosion in Gas Giant Planets
Juno and Cassini have shown that Jupiter and Saturn likely contain extended gradients of heavy elements. Yet, how these gradients can survive over billions of years remains an open question. Classical convection theories predict rapid mixing and homogenization, which would erase such gradients on timescales far shorter than the planets' ages. To address this, we estimate the energy required to erode both dense and fuzzy cores, and compare it to what the planet can realistically supply. If the e…

🇺🇦 #NowPlaying on #BBC6Music's #ChrisHawkins
Africa Express:
🎵 Invocation (feat. Damon Albarn, Joan As Police Woman, Onipa, Otim Alpha & Jupiter)
#AfricaExpress

On quasi-periodic decameter radio emission from Jupiter related to Ganymede
V. E. Shaposhnikov, V. V. Zaitsev
https://arxiv.org/abs/2506.18581 https://

On quasi-periodic decameter radio emission from Jupiter related to Ganymede
The paper discusses the possibility of implementing a plasma generation mechanism in a source of decameter radio emission associated with Ganymede and an explanation based on this mechanism of forming quasi-periodic sequences of bursts of this radiation. According to the discussed model, the registered quasi-periodic sequences of radiation pulses are a consequence of implementing in the source a pulsating mode of plasma wave conversion into extraordinary electromagnetic waves with a small refra…

Rossby number regime, convection suppression, and dynamo-generated magnetism in inflated hot Jupiters
Albert Elias-L\'opez, Matteo Cantiello, Daniele Vigan\`o, Fabio Del Sordo, Simranpreet Kaur, Cl\`audia Soriano-Guerrero
https://arxiv.org/abs/2507.05202

Rossby number regime, convection suppression, and dynamo-generated magnetism in inflated hot Jupiters
Hot Jupiters (HJs) are commonly thought to host the strongest dynamo-generated magnetic fields among exoplanets, up to one order of magnitude larger than Jupiter. Thus, they have often been regarded as the most promising exoplanets to display magnetic star-planet interaction signals and magnetically-driven coherent radio emission, which unfortunately remains elusive, despite many diversified observational campaigns. In this work, we investigate the evolution of the internal convection and dynam…

This https://arxiv.org/abs/2505.11224 has been replaced.
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Tracing the formation and migration history: molecular signatures in the atmosphere of misaligned hot Jupiter WASP-94Ab using JWST NIRSpec/G395H
The discovery of hot Jupiters that orbit very close to their host stars has long challenged traditional models of planetary formation and migration. Characterising their atmospheric composition - mainly in the form of the carbon-to-oxygen (C/O) ratio and metallicity - can provide insights into their formation locations and evolution pathways. With JWST we can characterise the atmospheres of these types of planets more precisely than previously possible, primarily because it allows us to determi…

A limit on the mass of the Taurid Resonant Swarm at sub-100 meter sizes
Paul Wiegert, Denis Vida, David L. Clark, Auriane Egal, Richard Wainscoat, Robert Weryk
https://arxiv.org/abs/2506.03327

A limit on the mass of the Taurid Resonant Swarm at sub-100 meter sizes
We report on a pencil-beam survey of the Taurid Swarm, a possible concentration of bodies in the Taurid meteoroid stream associated with the 7:2 mean-motion resonance with Jupiter. Canada-France-Hawaii Telescope MegaCam observations reaching apparent magnitudes of 24.5 in the gri filter were taken over three nights. Rates of motion on the sky allowed for the quick elimination of main-belt objects from the over 1000 moving sources seen. Eight candidates with on-sky rates of motion consistent wit…

WASP-121b's transmission spectrum observed with JWST/NIRSpec G395H reveals thermal dissociation and SiO in the atmosphere
Cyril Gapp, Thomas M. Evans-Soma, Joanna K. Barstow, Joshua D. Lothringer, David K. Sing, Djemma Ruseva, Eva-Maria Ahrer, Jayesh M. Goyal, Duncan Christie, Laura Kreidberg, Nathan J. Mayne
https://arxiv.o…

WASP-121b's transmission spectrum observed with JWST/NIRSpec G395H reveals thermal dissociation and SiO in the atmosphere
WASP-121b has been established as a benchmark ultrahot Jupiter, serving as a laboratory for the atmospheric chemistry and dynamics of strongly irradiated extrasolar gas giants. Here, we present and analyze WASP-121b's transmission spectrum observed with NIRSpec G395H on board the James Webb Space Telescope and find evidence for the thermal dissociation of H$_2$O and H$_2$ on the planet's permanent dayside. Additionally, we detect SiO at a statistical significance of $5.2σ$ which is compatible …

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🎵 Jupiter, the Bringer of Jollity (The Planets, Op.32)
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Three fast-spinning medium-sized Hilda asteroids uncovered by TESS
N\'ora Tak\'acs, Csaba Kiss, R\'obert Szak\'ats, Emese Plachy, Csilla E. Kalup, Gyula M. Szab\'o, L\'aszl\'o Moln\'ar, Kriszti\'an S\'arneczky, R\'obert Szab\'o, Attila B\'odi, Andr\'as P\'al
https://arx…

Three fast-spinning medium-sized Hilda asteroids uncovered by TESS
Hilda asteroids, which orbit in a 3:2 resonance with Jupiter, serve as key indicators of dynamical processes in the early solar system. Their spin rates, an important probe of these mechanisms, can constrain their density and collisional evolution, offering valuable insights into their origin. In this paper, we report on the identification of three fast-rotating Hilda asteroids with spin periods in the 3.2--3.7 h range using data from the Transiting Exoplanet Survey Satellite. These rotation pe…

The Near-Centaur Environment: Satellites, Rings, and Debris
A. A. Sickafoose, S. M. Giuliatti Winter, R. Leiva, C. B. Olkin, D. Ragozzine, L. M. Woodney
https://arxiv.org/abs/2506.04130

The Near-Centaur Environment: Satellites, Rings, and Debris
The unexpected finding of a ring system around the Centaur (10199) Chariklo opened a new window for dynamical studies and posed many questions about the formation and evolutionary mechanisms of Centaurs as well as the relationship to satellites and outbursting activity. As minor planets that cross the orbits of the giant planets, Centaurs have short dynamical lifetimes: Centaurs are supplied from the trans-Neptunian region and some fraction migrates inward to become Jupiter-family comets. Given…

A Precise Metallicity and Carbon-to-Oxygen Ratio for a Warm Giant Exoplanet from its Panchromatic JWST Emission Spectrum
Lindsey S. Wiser, Taylor J. Bell, Michael R. Line, Everett Schlawin, Thomas G. Beatty, Luis Welbanks, Thomas P. Greene, Vivien Parmentier, Matthew M. Murphy, Jonathan J. Fortney, Kenny Arnold, Nishil Mehta, Kazumasa Ohno, Sagnick Mukherjee

A Precise Metallicity and Carbon-to-Oxygen Ratio for a Warm Giant Exoplanet from its Panchromatic JWST Emission Spectrum
WASP-80 b, a warm sub-Jovian (equilibrium temperature ~820 K, 0.5 Jupiter masses), presents an opportunity to characterize a rare gas giant exoplanet around a low-mass star. In addition, its moderate temperature enables its atmosphere to host a range of carbon and oxygen species (H$_2$O, CH$_4$, CO, CO$_2$, NH$_3$). In this paper, we present a panchromatic emission spectrum of WASP-80 b, the first gas giant around a late K/early M-dwarf star and the coolest planet for which the James Webb Space…

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Gustav Holst, The National Youth Orchestra & Edward Gardner:
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This https://arxiv.org/abs/2505.01544 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Dark skies of the slightly eccentric WASP-18 b from its optical-to-infrared dayside emission
We performed a joint analysis of phase-curve observations of the ultra-hot Jupiter WASP-18 b from the visible to the mid-infrared, using data from CHEOPS, TESS and Spitzer. We aim to characterise the planetary atmosphere with a consistent view over the large wavelength range covered using GCMs and retrieval analyses, and including JWST data. We obtained new ephemerides with unprecedented precisions of 1 second and 1.4 millisecond on the time of inferior conjunction and orbital period, respectiv…

Osiris revisited: Confirming a solar metallicity and low C/O in HD 209458b
N. Bachmann, L. Kreidberg, P. Molli\`ere, D. Deming, S. -M. Tsai
https://arxiv.org/abs/2506.16232

Osiris revisited: Confirming a solar metallicity and low C/O in HD 209458b
HD 209458b is the prototypical hot Jupiter and one of the best targets available for precise atmosphere characterisation. Now that spectra from both Hubble Space Telescope (HST) and James Webb Space Telescope (JWST) are available, we can reveal the atmospheric properties in unprecedented detail. In this study, we perform a new data reduction and analysis of the original HST/WFC3 spectrum, accounting for the wavelength dependence of the instrument systematics that was not considered in previous …

Semiconvection unlocks dynamo action in stably-stratified regions of gaseous planets
Paul Pru\v{z}ina, David C\'ebron, Nathana\"el Schaeffer
https://arxiv.org/abs/2506.18521

Semiconvection unlocks dynamo action in stably-stratified regions of gaseous planets
Stably-stratified fluid layers are ubiquitous in gaseous planets, stellar and liquid cores, and have previously been thought not to be capable of driving a dynamo. We demonstrate that semiconvection (convection driven by a destabilising thermal gradient in an overall stably stratified region) can actually lead to dynamo action in such regions. Motivated by recent works suggesting that significant regions of Jupiter and Saturn may be prone to semiconvection, we conduct direct numerical simulatio…

A Dichotomy of the Mass-Metallicity Relation of Exoplanetary Atmospheres Demarcated by their Birthplace
Kazumasa Ohno, Masahiro Ikoma, Satoshi Okuzumi, Tadahiro Kimura
https://arxiv.org/abs/2506.16060

A Dichotomy of the Mass-Metallicity Relation of Exoplanetary Atmospheres Demarcated by their Birthplace
Atmospheric observations by JWST raise a growing evidence that atmospheric metallicity exhibits an anti-correlation with masses of giant exoplanets. While such a trend was anticipated by planetesimal-based planet formation models, it remains unclear what kind of atmospheric metallicity trends emerge from pebble-based planet formation. Moreover, while recent studies of solar system Jupiter suggest that uppermost observable atmosphere may not represent the bulk envelope composition, it remains un…