Tootfinder

Earth's atmosphere hasn't had this much CO2 in millions of years
https://www.aol.com/earths-atmosphere-hasnt-had-much-165150234.html

Good morning on my 1st vacation day! It is rainy & chill. Just the right for a very calm start. I feel the stress fading out but I am still very tired.
This #photo from our visit to #vienna / #wien…

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

I am fighting #fascism by remaining positive. I am being punk by smiling, not loosing hope, and constantly exercising #empathy. We will survive. Listen to the good Doctor.
#DavidTennant

Deep learning image burst stacking to reconstruct high-resolution ground-based solar observations
Christoph Schirninger, Robert Jarolim, Astrid M. Veronig, Christoph Kuckein
https://arxiv.org/abs/2506.04781

Deep learning image burst stacking to reconstruct high-resolution ground-based solar observations
Large aperture ground based solar telescopes allow the solar atmosphere to be resolved in unprecedented detail. However, observations are limited by Earths turbulent atmosphere, requiring post image corrections. Current reconstruction methods using short exposure bursts face challenges with strong turbulence and high computational costs. We introduce a deep learning approach that reconstructs 100 short exposure images into one high quality image in real time. Using unpaired image to image trans…

Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES
Ava Morrissey, George Zhou, Chelsea X. Huang, Duncan Wright, Neale Gibson, Keighley E. Rockcliffe, Elisabeth R. Newton, James Kirk, Daniel Bayliss
https://arxiv.org/abs/2506.04605

Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES+
Atmospheric mass loss is thought to induce the bimodality in the small planet population as we observe it today. Observationally, active mass loss can be traced by excess absorption in spectral lines of lighter species, such as the hydrogen Ly-alpha line and the metastable helium triplet. We search for helium escape from the young (120Myr old) sub-Neptune HIP94235b. We obtained two transit observations of HIP94235b using the CRyogenic InfraRed Echelle Spectrograph (CRIRES+) on the Very Large Te…

And this, people, is why Europe ABSOLUTELY NEEDS RIGHT FREAKING NOW its own human-graded space access system.
I'll never understand why nobody at #ESA thought of developping further the ATV in order to be also used to send people up instead of just cargo.
I know, the problem was mostly in bringing people down, as the ATV was designed to burn up in the atmosphere. But still. Now we…

rickf (@rickf@indieweb.social)
Attached: 1 image Dragon is what the US uses to resupply the ISS, for those that don't know...

Since November 2024, Serbia had a sharp rise in attacks on journalists amid political unrest, including 23 physical assaults and 128 total attacks and threats (Attila Mong/Committee to Protect Journalists)
https://cpj.org/2025/06/alarming-escal

Alarming escalation in attacks on journalists amid political crisis in Serbia - Committee to Protect Journalists
Berlin, June 3, 2025—What journalists called a “witch hunt” atmosphere against government critics in Serbia one year ago has since escalated into a rise in attacks and threats against the press, following a deadly railway station collapse in November 2024 that triggered a widespread anti-corruption movement. Initial protests demanding accountability for the tragedy have turned...

Series D, Episode 04 - Stardrive
AVON: That's one misfortune we don't have to share.
VILA: Fourteen I was when I was first sent to a penal colony. Ship was hit in the main drive by a meteoroid, bang! Y'know what they did to repair it? [Avon and Tarrant begin to look at Vila. As he continues they move in, listening to him.] Activated the force wall and generated an atmosphere inside the force wall so the repair team could work in a vacuum without spacesuits, 'caus…

Natura Urbana IX 🏡
城市自然 IX 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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#Sonnenstürme verkürzen die Lebensdauer von #Starlink-Satelliten und lassen sie schneller zur Erde zurückkehren.
Durch erhöhte #Atmosphärendichte steigt der Luftwiderstan…

Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
The exponential increase of low-Earth orbit (LEO) satellites in the past 5 years has brought into intense focus the need for reliable monitoring and reentry prediction to safeguard from space collisions and ground debris impacts. However, LEO satellites fly within the upper atmosphere region that exerts significant drag forces to their orbits, reducing their lifetimes, and increasing collision risks during dynamic events, like geomagnetic storms. Such conditions can become more severe during ge…

This https://arxiv.org/abs/2408.12585 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

A fluctuation-dissipation theorem perspective on radiative responses to temperature perturbations
Radiative forcing drives warming in the Earth system, leading to changes in sea surface temperatures (SSTs) and associated radiative feedbacks. The link between changes in the top-of-the-atmosphere (TOA) net radiative flux and SST patterns, known as the "pattern effect", is typically diagnosed by studying the response of atmosphere-only models to SST perturbations. In this work, we diagnose the pattern effect through response theory, by performing idealized warming perturbation experiments from…

Filipe Miranda – Movimento
#acoustic

From Bill McKibben
"Let me state it plainly: we are rushing into the most dangerous period in human history, and the Trump administration seems determined that we do it blindly. It’s inconceivably stupid, and it’s entirely real. And the planet doesn’t care: physics will not cut us any slack because we elected a moron."

Meanwhile, back in the real world
There's too much carbon in the atmosphere, so it's hot

Flare frequency in M dwarfs belonging to Young Moving Groups
E. Mamonova, Y. Shan, A. F. Kowalski, S. Wedemeyer S. C. Werner
https://arxiv.org/abs/2506.04465

Flare frequency in M dwarfs belonging to Young Moving Groups
Context. M stars are preferred targets for studying terrestrial exoplanets, for which we hope to obtain their atmosphere spectra in the next decade. However, M dwarfs have long been known for strong magnetic activity and the ability to frequently produce optical, broadband emission flares. Aims. We aim to characterise the flaring behaviour of young M dwarfs in the temporal, spectral, and energetic dimensions, as well as examine the stellar parameters governing this behaviour, in order to improv…

This https://arxiv.org/abs/2505.11224 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

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…

This https://arxiv.org/abs/2408.08129 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Efficient and scalable atmospheric dynamics simulations using non-conforming meshes
We present the massively parallel performance of a $h$-adaptive solver for atmosphere dynamics that allows for non-conforming mesh refinement. The numerical method is based on a Discontinuous Galerkin (DG) spatial discretization, highly scalable thanks to its data locality properties, and on a second order Implicit-Explicit Runge-Kutta (IMEX-RK) method for time discretization, particularly well suited for low Mach number flows. Simulations with non-conforming meshes for flows over orography can…

Series D, Episode 01 - Rescue
DORIAN: Exactly.
AVON: You really are insane, aren't you?
DORIAN: By now I probably would be.
AVON: If it wasn't for this mysterious room.
DORIAN: And what it contains.
SOOLIN: [Enters] And what might that be, Dorian?
https://blake.torpidity.net/m/401/467…

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This https://arxiv.org/abs/2411.12855 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Linking emitted drops to collective bursting bubbles across a wide range of bubble size distributions
Bubbles entrained by breaking waves rise to the ocean surface, where they cluster before bursting and release droplets into the atmosphere. The ejected drops and dry aerosol particles, left behind after the liquid drop evaporates, affect the radiative balance of the atmosphere and can act as cloud condensation nuclei. The remaining uncertainties surrounding the sea spray emissions function motivate controlled laboratory experiments that directly measure and link collective bursting bubbles and …

Out into the mist on this morning’s Purbeck ride to Kimmeridge
#Dorset #bike #cycling

Hi friends!
I set my alarm to 5am and headed out for a nice walk. It was getting warm, so I started early. - and it was just so good to do so!
A nice 6h walk with lots of views, lots of photos and just enjoying being out. End the #summit just for me 😍
On the way up I noted all places where I could refuel later using my water filter. Seriously: why didn't I buy that waaays ear…

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 …

Last week, our students learned how to conduct a proper evaluation for an NLP experiment. To this end, we introduced a small textcorpus with sentences about Joseph Fourier, who counts as one of the discoverers of the greenhouse effect, responsible for global warming.

Geomagnetic Storms and Satellite Orbital Decay
Yoshita Baruah
https://arxiv.org/abs/2506.03305 https://arxiv.org/pdf/2506.03305

Geomagnetic Storms and Satellite Orbital Decay
Energetic events on the Sun, particularly coronal mass ejections and high speed streams, regulate the near Earth space environment and give rise to space weather. A major terrestrial manifestation of such events are geomagnetic storms. A geomagnetic storm results in dissipation of energy from the solar wind into the atmosphere, leading to Joule heating and thermospheric expansion. This has serious consequences on Low Earth Orbit satellite lifetimes. Our work demonstrates the impact of different…

Hi friends!
I set my alarm to 5am and headed out for a nice walk. It was getting warm, so I started early. - and it was just so good to do so!
A nice 6h walk with lots of views, lots of photos and just enjoying being out. End the #summit just for me 😍
On the way up I noted all places where I could refuel later using my water filter. Seriously: why didn't I buy that waaays ear…

Observations of fine coronal structures with high-order solar adaptive optics: #AdaptiveOptics shows stunning details of our star’s atmosphere: https://www.eurekalert.org/news-releases/1085173

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b
Thomas M. Evans-Soma, David K. Sing, Joanna K. Barstow, Anjali A. A. Piette, Jake Taylor, Joshua D. Lothringer, Henrique Reggiani, Jayesh M. Goyal, Eva-Maria Ahrer, Nathan J. Mayne, Zafar Rustamkulov, Tiffany Kataria, Duncan A. Christie, Cyril Gapp, Jiayin Dong, Daniel Foreman-Mackey, Soichiro Hattori, Mark S. Marley

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b
Refractory elements such as iron, magnesium, and silicon can be detected in the atmospheres of ultrahot giant planets. This provides an opportunity to quantify the amount of refractory material accreted during formation, along with volatile gases and ices. However, simultaneous detections of refractories and volatiles have proved challenging, as the most prominent spectral features of associated atoms and molecules span a broad wavelength range. Here, using a single JWST observation of the ultr…

Natura Urbana VIII 🏡
城市自然 VIII 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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The Way, and the Truth, and the Life - Pray As You Go
https://prayasyougo.org/prayer/the-way-and-the-truth-and-the-life-2684
Image generated by Wes Fryer using ChatGPT, edited with Canva for iOS.

The way, and the truth, and the life - Pray As You Go
Today is Friday the 16th of May, in the 4th week of Eastertide.    The Kyiv Chamber Choir sing the Credo: “I believe in one God, the Father almighty, creator of heaven and earth.” As I start this prayer today, can I join in with this strong...

Cold pools, Breezes, and Monsoons: Propagating Convection over New Guinea
Mingyue Tang, Jimy Dudhia, Changhai Liu, Giuseppe Torri
https://arxiv.org/abs/2506.00473

Cold pools, Breezes, and Monsoons: Propagating Convection over New Guinea
The diurnal cycle of precipitation near New Guinea involves intricate land-ocean-atmosphere interactions, posing substantial challenges for tropical weather and climate simulations. Using over two decades of GPM satellite observations and convection-permitting WRF simulations, this study examines the physical mechanisms governing the pronounced offshore propagation of diurnal convection over New Guinea. We identify two distinct offshore propagation modes: (1) a "ridge-to-coast" mode originated …

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…

#Blakes7 Series A, Episode 06 - Seek-Locate-Destroy
ESCON: Base Commander Escon reporting, sir.
TRAVIS: Yes, Base Commander?
https://blake.torpidity.net/m/106/396 B7B1

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Our pre-conference Barcamp has become a real highlight, offering a fantastic opportunity to connect with fellow attendees and dive into some engaging conversations before the main conference even kicks off. This year, Nick Burch will once again be guiding the flow of ideas and discussions on 15 June, starting at 2:30 pm. It's a great way to warm up, share your thoughts, and meet new people!
Learn more about our barcamp:

When both your wife and your girlfriend are busy, you take yourself out! #polyamory #gobraves

Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
D. N\'obrega-Siverio, R. Joshi, E. Sola-Viladesau, D. Berghmans, D. Lim
https://arxiv.org/abs/2506.03092

Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
Coronal jets are ubiquitous, collimated million-degree ejections that contribute to the energy and mass supply of the upper solar atmosphere and the solar wind. Solar Orbiter provides an unprecedented opportunity to observe fine-scale jets from a unique vantage point close to the Sun. We aim to (1) uncover thin jets originating from Coronal Bright Points (CBPs), revealing previously unresolved contributions to coronal upflows; and (2) improve our understanding of plasmoid-mediated reconnection …

This is a sad evening. By the time this posts, my WoW sub will have expired. I will not be renewing it.
I have played WoW since 2006. I have played it almost as long as all my relationships combined. (There's been a couple sizable gaps between 'ships, yo.) I have dozens of alts. 2 years played time (yeah, not THAT much considering, but I also play other games and have taken a couple year long breaks.)
WoW had always been there as an excellent escape from reality when I …

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
Aadarsh Raj Sharma, Lot Ram, Sumanta Sarkhel
https://arxiv.org/abs/2505.13977

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
The southern hemisphere of Mars possesses concentrated region of strong crustal magnetic fields (CMF), which generate localized magnetic anomalies that can influence atmospheric dynamics and energy deposition in the Martian thermospheric-ionospheric system. Although their effects on the atmosphere (>200 km) in the southern hemisphere are well documented, however their role in modulating the behavior of atmospheric plasma and neutrals below 200 km are poorly understood. The atmosphere at these a…

Natura Urbana VII 🏡
城市自然 VII 🏡
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🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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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.

This https://arxiv.org/abs/2505.08742 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Applying the ACE2 Emulator to SST Green's Functions for the E3SMv3 Global Atmosphere Model
Green's functions are a useful technique for interpreting atmospheric state responses to changes in the spatial pattern of sea surface temperature (SST). Here we train version 2 of the Ai2 Climate Emulator (ACE2) on reference historical SST simulations of the US Department of Energy's EAMv3 global atmosphere model. We compare how well the SST Green's functions generated by ACE2 match those of EAMv3, following the protocol of the Green's Function Model Intercomparison Project (GFMIP). The spatia…

#Schiffe lösen #Methan-Ausstoß aus dem #Meeresboden aus, besonders in #Küstenregionen wie…

Coastal methane emissions triggered by ship passages - Communications Earth & Environment
Shipping in estuaries causes pressure changes and water column mixing, which induces methane emissions to the atmosphere, according to field observations of methane from Neva Bay, Russia.

What is Past is Prologue:
#Paleoclimate constraints on #ECS Equilibrium #ClimateSensitivity #GreenhouseGas sensitivity of Earth's #Climate
First of 3 papers this summer.
My career trajectory has been building towards using past climate archives to narrow the possibilities of future climate. But it is HARD. And computationally expensive.
The next two papers of this project will rule out some high and low sensitivity simulations using Past Climate (Proxy) archives and Data Assimilation. Those should be out in preprint in the next couple of months.
We hope this project (first to constrain earth climate sensitivity using coupled atmosphere-ocean earth system models) will be streamlined in the future and applied widely.
https://essopenarchive.org/users/921675/articles/1297441-on-the-sensitivity-of-climate-sensitivity-in-a-coupled-climate-model

#Blakes7 Series A, Episode 06 - Seek-Locate-Destroy
ESCON: Base Commander Escon reporting, sir.
TRAVIS: Yes, Base Commander?
https://blake.torpidity.net/m/106/396 B7B1

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This https://arxiv.org/abs/2505.13066 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Retention of surface water on tidally locked rocky planets in the Venus zone around M dwarfs
Terrestrial planets within the Venus zone surrounding M dwarf stars can retain surface ice caps on the perpetual dark side if atmospheric heat transport is inefficient, {as suggested by previous global climate simulations \citep[e.g.,][]{leconte2013}.} This condition is {proposed} to play a role in the potential regional habitability of these planets. However, the amount of surface ice may be limited by considering the water condensed from the steam atmosphere in a runaway greenhouse state, and…

When both your wife and your girlfriend are busy, you take yourself out! #polyamory #gobraves

Natura Urbana VI 🏡
城市自然 VI 🏡
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buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Series A, Episode 01 - The Way Back
VARON: He works in the Outer Worlds most of the time. He's in Security.
BLAKE: He's a murderer.
VARON: Then he'll come to trial like everyone else in this cover-up.
BLAKE: And what about me?
https://blake.torpidity.net/m/101/317

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Binarity at LOw Metallicity (BLOeM): Pipeline-Determined Physical Properties of OB Stars
J. M. Bestenlehner, Paul A. Crowther, V. A. Bronner, S. Simon-Diaz, D. J. Lennon, J. Bodensteiner, N. Langer, P. Marchant, H. Sana, F. R. N. Schneider, T. Shenar
https://arxiv.org/abs/2506.00117

Binarity at LOw Metallicity (BLOeM): Pipeline-Determined Physical Properties of OB Stars
We aim to determine the physical properties of OB stars from the multi-epoch VLT/FLAMES BLOeM spectroscopic survey of the Small Magellanic Cloud. We apply a pipeline designed to analyse large spectroscopic samples of OB stars to the co-added, initial 9 epochs of the BLOeM survey, utilising grids of synthetic model spectra computed with the stellar atmosphere code FASTWIND. 69 OB stars are excluded from the analysis owing to disk emission or significant contamination by secondaries in SB2 binari…

Series A, Episode 01 - The Way Back
VARON: He works in the Outer Worlds most of the time. He's in Security.
BLAKE: He's a murderer.
VARON: Then he'll come to trial like everyone else in this cover-up.
BLAKE: And what about me?
https://blake.torpidity.net/m/101/317

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Natura Urbana VI 🏡
城市自然 VI 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Diversity of Cold Worlds: A Near Complete Spectral Energy Distribution for 2MASS J04151954-0935066 using JWST
Sherelyn Alejandro Merchan, Jacqueline K. Faherty, Genaro Su\'arez, Kelle L. Cruz, Adam J. Burgasser, Jonathan Gagn\'e, Callie E. Hood, Eileen C. Gonzales, Daniella C. Bardalez Gagliuffi, Jolie L'Heureux, Johanna M. Vos, Adam C. Schneider, Aaron M. Meisner, Caroline Morley, J. Davy Kirkpatrick, Federico Marocco, Rocio Kiman, Charles A. Beichman, Ben Burningham, Dan …

Diversity of Cold Worlds: A Near Complete Spectral Energy Distribution for 2MASS J04151954-0935066 using JWST
We present the a near complete spectral energy distribution (SED) for an extrasolar world: the T8 brown dwarf 2MASS~J04151954$-$0935066. Spanning from optical to mid-infrared (0.7--20.4 micron) wavelengths, the SED for this substellar atmosphere is constructed from new JWST NIRSpec G395H ($R\sim$2700) and Magellan FIRE echelle ($R\sim$8000) near-infrared spectra, along with MIRI mid-infrared photometry complemented by spectra from Keck I, IRTF, Magellan, AKARI, Spitzer and photometry from vario…

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…

Series A, Episode 02 - Space Fall
LEYLAN: Well, describe it later. Now... now give me life support readout.
TEAGUE: [V.O.] Pressure normal... minimal radiation... breathable oxygen atmosphere.
LEYLAN: Good, good. Now, is there anybody on board?
https://blake.torpidity.net/m/102/532

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Natura Urbana V 🏡
城市自然 V 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Series A, Episode 02 - Space Fall
LEYLAN: Well, describe it later. Now... now give me life support readout.
TEAGUE: [V.O.] Pressure normal... minimal radiation... breathable oxygen atmosphere.
LEYLAN: Good, good. Now, is there anybody on board?
https://blake.torpidity.net/m/102/532

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Natura Urbana V 🏡
城市自然 V 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Series C, Episode 10 - Ultraworld
DAYNA: And if we agree?
ULTRA 1: We shall reconsider the fate of your friends. And, of course, yourselves.
TARRANT: Is that the best you can do? No deal.
https://blake.torpidity.net/m/310/506 B7B5

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Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
Denny M. Oliveira, Eftyhia Zesta, Katherine Garcia-Sage
https://arxiv.org/abs/2505.13752

Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
The exponential increase of low-Earth orbit (LEO) satellites in the past 5 years has brought into intense focus the need for reliable monitoring and reentry prediction to safeguard from space collisions and ground debris impacts. However, LEO satellites fly within the upper atmosphere region that exerts significant drag forces to their orbits, reducing their lifetimes, and increasing collision risks during dynamic events, like geomagnetic storms. Such conditions can become more severe during ge…

Turbulent Snow Transport and Accumulation: New Reduced-Order Models and Diagnostics
Nikolas O. Aksamit, Alex P. Encinas-Bartos, Holt Hancock, Alexander Prokop
https://arxiv.org/abs/2505.17028

Turbulent Snow Transport and Accumulation: New Reduced-Order Models and Diagnostics
Understanding and modeling snow particle dynamics in the atmosphere remains a significant challenge for atmospheric scientists, hydrologists, and glaciologists. Temporally and spatially varying rates of snow transport, deposition, and erosion are driven by atmospheric turbulence and further complicated by inertial particle dynamics. Even with perfectly resolved wind fields, accurately predicting the fate of mobile snow particles in wind relies on semi-empirical assumptions embedded in diffeo-in…

Series C, Episode 10 - Ultraworld
DAYNA: And if we agree?
ULTRA 1: We shall reconsider the fate of your friends. And, of course, yourselves.
TARRANT: Is that the best you can do? No deal.
https://blake.torpidity.net/m/310/506 B7B5

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Advancing global sea ice prediction capabilities using a fully-coupled climate model with integrated machine learning
William Gregory, Mitchell Bushuk, Yong-Fei Zhang, Alistair Adcroft, Laure Zanna, Colleen McHugh, Liwei Jia
https://arxiv.org/abs/2505.18328

Advancing global sea ice prediction capabilities using a fully-coupled climate model with integrated machine learning
We showcase a hybrid modeling framework which embeds machine learning (ML) inference into the GFDL SPEAR climate model, for online sea ice bias correction during a set of global fully-coupled 1-year retrospective forecasts. We compare two hybrid versions of SPEAR to understand the importance of exposing ML models to coupled ice-atmosphere-ocean feedbacks before implementation into fully-coupled simulations: Hybrid_CPL (with feedbacks) and Hybrid_IO (without feedbacks). Relative to SPEAR, Hybrid…

Series C, Episode 05 - The Harvest of Kairos
VILA: We got it, we got it!
TARRANT: Yes, I know, only I was saving that trick for when they both attacked at once.
VILA: There's only two left now; no trouble.
https://blake.torpidity.net/m/305/300 B7B3

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This https://arxiv.org/abs/2308.13614 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The role of interior dynamics and differentiation on the surface and atmosphere of lava planets
Lava planets are rocky exoplanets that orbit so close to their host star that their day-side is hot enough to melt silicate rock. Their short orbital periods ensure that lava planets are tidally locked into synchronous rotation, with permanent day and night hemispheres. Such asymmetric magma oceans have no analogs in the Solar System and will exhibit novel fluid dynamics. Here we report numerical simulations of lava planet interiors showing that solid-liquid fractionation in the planetary int…

Series C, Episode 05 - The Harvest of Kairos
VILA: We got it, we got it!
TARRANT: Yes, I know, only I was saving that trick for when they both attacked at once.
VILA: There's only two left now; no trouble.
https://blake.torpidity.net/m/305/300 B7B3

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Apache Point rapid response characterization of primitive pre-impact detection asteroid 2024 RW$_1$
Carl Ingebretsen, Bryce T. Bolin, Robert Jedicke, Peter Vere\v{s}, Christine H. Chen, Carey M. Lisse, Russet McMillan, Torrie Sutherland, Amanda J. Townsend
https://arxiv.org/abs/2505.23736

Apache Point rapid response characterization of primitive pre-impact detection asteroid 2024 RW$_1$
Pre-impact detection asteroids (PIDAs) may be detected only a few hours before their impact with Earth, providing a brief opportunity to characterize them before impact. We describe the characterization of PIDA 2024 RW$_1$, which was discovered by the Catalina Sky Survey on 2024 September 4 at 05:43 UTC, before it entered the atmosphere near the northern Philippines at 16:39 UTC. We observed 2024 RW$_1$ with the Astrophysical Research Consortium Telescope Imaging Camera on the Apache Point Astr…

Alley Stories IV 🔣
巷弄故事 IV 🔣
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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…

Alley Stories IV 🔣
巷弄故事 IV 🔣
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🎞️Ilford FP4 Plus, expired 1994
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Variations of the Near-Surface Electric field measured at Aragats during Geomagnetic Storms
A. Chilingarian
https://arxiv.org/abs/2505.16271 https://

Variations of the Near-Surface Electric field measured at Aragats during Geomagnetic Storms
At least two mechanisms effectively transfer interplanetary magnetic field (IMF) disturbances into the atmosphere. First, the inflow of solar wind into the ionosphere at low latitudes significantly enhances the total vertical electron content, increasing atmospheric conductivity. Second, Forbush decreases (FD) reduce the cosmic ray flux by a few percent, lowering ionization levels at middle latitudes and decreasing conductivity. Changes in atmospheric conductivity affect the global electric cir…

Continuous helium absorption from the leading and trailing tails of WASP-107b
Vigneshwaran Krishnamurthy, Yann Carteret, Caroline Piaulet-Ghorayeb, Jared Splinter, Dhvani Doshi, Michael Radica, Louis-Philippe Coulombe, Romain Allart, Vincent Bourrier, Nicolas B. Cowan, David Lafreni\`ere, Lo\"ic Albert, Lisa Dang, Ray Jayawardhana, Doug Johnstone, Lisa Kaltenegger, Adam B. Langeveld, Stefan Pelletier, Jason F. Rowe, Pierre-Alexis Roy, Jake Taylor, Jake D. Turner

Continuous helium absorption from the leading and trailing tails of WASP-107b
The detection of helium escaping the atmosphere of exoplanets has revolutionized our understanding of atmospheric escape and exoplanetary evolution. Using high-precision spectroscopic observations from the James Webb Space Telescope (JWST) NIRISS-SOSS mode, we report the detection of significant helium absorption during the pre-transit phase of WASP-107b (17$σ$), as well as in the transit and post-transit phases. This unique continuous helium absorption begins approximately 1.5 hours before th…

Urban Rhythms 🎵
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Hot Rocks Survey III: A deep eclipse for LHS 1140c and a new Gaussian process method to account for correlated noise in individual pixels
Mark Fortune, Neale P. Gibson, Hannah Diamond-Lowe, Jo\~ao M. Mendon\c{c}a, Am\'elie Gressier, Daniel Kitzmann, Natalie H. Allen, Prune C. August, Jegug Ih, Erik Meier Vald\'es, Merlin Zgraggen, Lars A. Buchhave, Brice-Olivier Demory, N\'estor Espinoza, Kevin Heng, Kathryn Jones, Alexander D. Rathcke

Hot Rocks Survey III: A deep eclipse for LHS 1140c and a new Gaussian process method to account for correlated noise in individual pixels
Time-series photometry at mid-infrared wavelengths is becoming a common technique to search for atmospheres around rocky exoplanets. This method constrains the brightness temperature of the planet to determine whether heat redistribution is taking place - indicative of an atmosphere - or whether the heat is reradiated from a low albedo bare rock. By observing at 15$μ$m we are also highly sensitive to CO$_2$ absorption. We observed three eclipses of the rocky super-Earth LHS 1140c using MIRI/Im…

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Things that don’t Develop II🧪
不显影的那些东西 II🧪
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Things that don’t Develop II🧪
不显影的那些东西 II🧪
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#filmphotography

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