Tootfinder

"Starfleet Academy": Erster Trailer zur kommenden Star-Trek-Serie bei Paramount
Paramount hat einen ersten Trailer zu "Star Trek: Starfleet Academy" veröffentlicht. Die Serie wird im Januar bei Paramount ausgestrahlt.

The impact of rotational mixing in intermediate-age star clusters with extended main-sequence turn-offs and extended red clumps
Lorenzo Martinelli, Andrea Miglio, Ga\"el Buldgen, Hannah Schunker, Cyril Georgy, Giacomo Cordoni, Karsten Brogaard, Patrick Eggenberger, Eoin Farrell
https://arxiv.org/abs/2509.13601

The impact of rotational mixing in intermediate-age star clusters with extended main-sequence turn-offs and extended red clumps
The extended main-sequence turn-offs (eMSTOs) and extended red clumps (eRCs) observed in intermediate-age star clusters challenge the traditional understanding of clusters as simple stellar populations. Recently, eMSTOs have been interpreted as signatures of stellar rotation. In this work, we test the effectiveness of rotational mixing in shaping the color-magnitude diagram (CMD) of star clusters. We computed a set of separate single-age synthetic stellar populations, referred to as "Base Stell…

Um Wechsel zu fixieren - Wegen Max: Schickt Mercedes Pilot „ins Internat“? #News #Nachrichten

The Type II SN 2025pht in NGC 1637: A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a Supernova Progenitor Star
Charles D. Kilpatrick, Aswin Suresh, Kyle W. Davis, Maria R. Drout, Ryan J. Foley, Alexander Gagliano, Wynn V. Jacobson-Galan, Ravjit Kaur, Kirsty Taggart, Jason Vazquez
https://arxiv.org/abs/2…

The Type II SN 2025pht in NGC 1637: A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a Supernova Progenitor Star
We present follow-up imaging and spectroscopy and pre-explosion imaging of supernova (SN) 2025pht located in NGC 1637 at 12 Mpc. Our spectroscopy shows that SN 2025pht is a Type II SN with broad lines of hydrogen and with minimal line-of-sight extinction inferred from Na I D absorption. NGC 1637 was the target of several epochs of Hubble Space Telescope (HST) and James Webb Space Telescope (JWST) imaging covering the site of SN 2025pht from 31 to 0.7 yr prior to discovery. Using a follow-up HST…

Nostalgie Pur: Neues "Star Wars"-Spiel bringt digitale Spielsets auf die Quest 3
"Star Wars: Beyond Victory" bietet auf der Meta Quest 3 eine neue Geschichte, digitale Actionfiguren und Diorama-Welten samt holografischer Rennstrecken.

The Type II SN 2025pht in NGC 1637 - A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a #Supernova Progenitor Star: https://iopscience.iop.org/article/10.3847/2041-8213/ae04de -> Webb Telescope unveils doomed star hidden in dust: https://news.northwestern.edu/stories/2025/10/webb-telescope-unveils-doomed-star-hidden-in-dust?fj=1 - new finding could help solve the mystery of the missing massive red supergiants.

JWST/NIRCam imaging of the Bipolar Planetary Nebula NGC 6537: the (Infra)red Spider, Revealed
Joel Kastner (Rochester Institute of Technology, USA), Paula Moraga Baez (RIT), Bruce Balick (University of Washington, USA), Rodolfo Montez Jr. (CfA/SAO, USA), Caroline Geiser (Max Planck Institute, Germany), Mikako Matsuura (Cardiff University, UK), Jason Nordhaus (RIT), Miguel Santander-Garcia (OAN, Spain)

JWST/NIRCam imaging of the Bipolar Planetary Nebula NGC 6537: the (Infra)red Spider, Revealed
We present James Webb Space Telescope (JWST) near-infrared (NIRCam) Br$α$, H$_2$, [Fe II], and PAH imaging of the molecule-rich, high-excitation bipolar planetary nebula (PN) NGC 6537 (the Red Spider), complemented by new ALMA and Chandra observations and archival HST images. The resulting multiwavelength view of the Red Spider establishes the detailed lobe/torus structure of the nebula and the mass-loss history of its progenitor star. The extinction-penetrating JWST/NIRCam Br$α$ and PAH and …

"Star Wars: Beyond Victory" Test – Die perfekte Tech-Demo für Meta Quest 3
"Star Wars: Beyond Victory" bietet rasante Pod-Rennen, Action-Figuren und eine neue Geschichte – doch wie gut funktioniert der Wechsel zwischen VR und MR?

🎼🎤“Sure it’s — mid September, once more” 🎶

Lanthanide Impact on the Infra-Red Spectra of Nebular Phase Kilonovae
Quentin Pognan, Kyohei Kawaguchi, Shinya Wanajo, Sho Fujibayashi, Anders Jerkstrand
https://arxiv.org/abs/2510.12413

Lanthanide Impact on the Infra-Red Spectra of Nebular Phase Kilonovae
Nebular phase kilonovae (KNe) have significant infra-red (IR) emission thought to be mostly forbidden emission lines from rapid neutron capture (r-process) species in neutron star merger ejecta. Lanthanide elements in particular have complex atomic structures with many IR transitions. Using non-local thermodynamic equilibrium (NLTE) radiative transfer simulations, we explore the impact of lanthanides on the IR spectra of KNe in the nebular phase, exploring a parameter space of ejecta mass and l…

A profile of Katie Feeney, an influencer and a rising star in sports media with 8M TikTok followers, as ESPN hires her to appear across its social channels (Ben Strauss/Washington Post)

From TikTok to ESPN, Katie Feeney is the future of sports media
Chasing content from the Rose Bowl to the red carpet with a 22-year-old influencer and rising media star.

Strength in Numbers: Red Galaxies Bolster the Cosmic Star Formation Rate Density at z > 3
L. Barrufet, J. S. Dunlop, R. Begley, S. Flury, D. J. McLeod, K. Arellano-Cordova, A. Carnall, F. Cullen, C. T. Donnan, F. Liu, R. McLure, D. Scholte, T. M. Stanton, R. Cochrane, C. Conselice, R. Ellis, P. G. P\'erez-Gonz\'alez, R. Gottumukkala, N. A. Grogin, G. D. Illingworth, A. M. Koekemoer, D. Magee, M. Michalowski

Strength in Numbers: Red Galaxies Bolster the Cosmic Star Formation Rate Density at z > 3
A comprehensive account of the cosmic star-formation history demands an accurate census of dust-enshrouded star formation over cosmic time. We provide strong new constraints from a large sample of 777 red galaxies, selected based on their dust-reddened, rest-frame UV-optical emission. This sample of 777 galaxies spans $1 < z < 8$ and is selected from PRIMER JWST NIRCam and HST COSMOS optical data, ensuring robust colour criteria. The SEDs indicate that these dust-reddened galaxies are star-form…

The age and metallicity dependence of the near-infrared absolute magnitude and colour of red clump stars
Hiroki Onozato, Yoshifusa Ita, Yoshikazu Nakada
https://arxiv.org/abs/2510.09168

The age and metallicity dependence of the near-infrared absolute magnitude and colour of red clump stars
Understanding the age and metallicity dependence of the absolute magnitude and colour of red clump (RC) stars is crucial for validating the accuracy of stellar evolution models and enhancing their reliability as a standard candle. However, this dependence has previously been investigated in the near-infrared across multiple bands only for -1.05 $\leq$ [Fe/H] $\leq$ 0.40, a range accessible through the star clusters in the Large Magellanic Cloud. Therefore, we used star clusters in the Small Mag…

Die besten VR-Spiele im Oktober 2025: "Star Wars", "Reach", "Memoreum" und mehr
Von Sci-Fi-Horror im Weltraum über Star Wars im Wohnzimmer bis zu poetischen Pixel-Traumwelten: Der VR-Oktober hat es in sich.

I might start a new hobby of SD card collecting (Like stamp collecting, but *edgier*!). There are so many cute little designs.

I would like to remind you that Neuronationalism, (which is just autistic fascism), is increasingly on the rise.
#Fascism #Autism #ActuallyAutistic

Antonio Gates' prowess in crucial situations vaulted Chargers star into Hall of Fame https://www.nytimes.com/athletic/6523698/2025/07/30/antonio-gates-pro-football-hall-of-fame-chargers/

Hulu wird in die Disney -App integriert
Disney schafft Hulu nach der Übernahme als eigenständigen Streaming-Dienst ab und integriert ihn in Disney . Darin soll Hulu den Star-Bereich ersetzen.
https://www.

Discovery of Multiply Ionized Iron Emission Powered by an Active Galactic Nucleus in a z~7 Little Red Dot
Erini Lambrides, Rebecca Larson, Taylor Hutchison, Pablo Arrabal Haro, Bingjie Wang, Brian Welch, Dale D. Kocevski, Chris T. Richardson, Casey Papovich, Jonathan R. Trump, Sarah E. I. Bosman, Jane R. Rigby, Steven L. Finkelstein, Guillermo Barro, Jacqueline Antwi-Danso, Arianna Long, Anthony J. Taylor, Jenna Cann, Jeffrey McKaig, Anton M. Koekemoer, Nikko J. Cleri, Hollis B. Akins,…

Discovery of Multiply Ionized Iron Emission Powered by an Active Galactic Nucleus in a z~7 Little Red Dot
Some of the most puzzling discoveries of NASA's JWST in the early Universe surround the surprising abundance of compact red sources, which show peculiar continuum shapes and broad hydrogen spectral lines. These sources, dubbed ``Little Red Dots'' or LRDs, have been the subject of intense inquiry in the literature. Any of the proposed explanations, from accreting super-massive black holes ensconced in ultra-dense gas to extremely compact star-systems, has significant implications for the earlies…

"Star Trek: Infection": VR-Survival-Horror für nervenstarke Trekkies angekündigt
Als vulkanischer Offizier gegen eine unbekannte Macht: Das VR-Spiel "Star Trek: Infection" setzt auf Horror und eine Geschichte über Identitätsverlust.

Tip of the Red Giant Branch Distances to NGC 1316, NGC 1380, NGC 1404, & NGC 4457: A Pilot Study of a Parallel Distance Ladder Using Type Ia Supernovae in Early-Type Host Galaxies
Max J. B. Newman, Conor Larison, Saurabh W. Jha, Kristen B. W. McQuinn, Evan D. Skillman, Andrew E. Dolphin, Mi Dai, D. Andrew Howell, Curtis McCully, K. Azalee Bostroem, Daichi Hiramatsu, Craig Pellegrino, Estefania Padilla Gonzalez

Tip of the Red Giant Branch Distances to NGC 1316, NGC 1380, NGC 1404, & NGC 4457: A Pilot Study of a Parallel Distance Ladder Using Type Ia Supernovae in Early-Type Host Galaxies
Though type-Ia supernovae (SNe Ia) are found in all types of galaxies, recent local Hubble constant measurements have disfavored using SNe Ia in early-type or quiescent galaxies, aiming instead for better consistency with SNe Ia in star-forming, late-type host galaxies calibrated by Cepheid distances. Here we investigate the feasibility of a parallel distance ladder using SNe Ia exclusively in quiescent, massive ($\log M_*/M_{\odot} \geq 10$) host galaxies, calibrated by tip of the red giant br…

"Star Trek" für die Medizin: Forschung will CAR-T-Therapie direkt im Krankenhaus
Forscher wollen im Projekt EASYGEN die CAR-T-Zell-Therapie revolutionieren und eine schnelle Produktion direkt im Krankenhaus ermöglichen.

Asteroseismology of 35 Kepler and TESS $\delta$ Scuti stars near the red edge of the instability strip. The limitations of $\delta$ Scuti stars for dating open clusters
David Pamos Ortega
https://arxiv.org/abs/2509.05684

Asteroseismology of 35 Kepler and TESS $δ$ Scuti stars near the red edge of the instability strip. The limitations of $δ$ Scuti stars for dating open clusters
Aims. The aim of this work is to determine the maximum ages that can be unambiguously established for $δ$ Sct stars using seismic observables, and, by extension, the oldest open clusters that can be dated using this type of star. Methods. I estimate the large frequency separation using various techniques applied to two samples of $δ$ Sct located near the red edge of the instability strip. One sample consists of 18 targets observed by the Kepler mission, and the other comprises 17 targets obse…

Stephenson 2 DFK 52 - Discovery of an exotic red #supergiant in the massive stellar cluster RSGC2: https://www.aanda.org/articles/aa/full_html/2025/08/aa55975-25/aa55975-25.html -> Supergiant star’s gigantic bubble surprises scientists: https://www.chalmers.se/en/current/news/see-supergiant-star-s-gigantic-bubble-surprises-scientists/

#Anarchism #Syndicalism #Communism #Marxism

Little Red Dots Are Nurseries of Massive Black Holes
Fabio Pacucci, Lars Hernquist, Michiko Fujii
https://arxiv.org/abs/2509.02664 https://arxiv.org/pdf/25…

Little Red Dots Are Nurseries of Massive Black Holes
The James Webb Space Telescope (JWST) has revealed a previously unknown population of compact, red galaxies at $z \sim 5$, known as "Little Red Dots" (LRDs). With effective radii of $\sim 100$ pc and stellar masses of $10^9-10^{11} \, \rm M_\odot$, a purely stellar interpretation implies extreme central densities, $ρ_\star\sim10^4-10^5 \, \rm M_\odot \, pc^{-3}$ and in some cases up to $\sim 10^9 \, \rm M_\odot \, pc^{-3}$, far exceeding those of globular clusters. At such densities, the dynam…

OpenAI-Chef Altman: KI als Chance für Ärzte und Patienten
Gute-Nacht-Geschichten und Gesundheitstipps: Was OpenAI-Chef Sam Altman über die Chancen von ChatGPT verrät – und was ein Ex-Formel-1-Star damit zu tun hat.

Red Supergiant Mass Loss and Mass-Loss Rates
Jacco Th. van Loon (Keele University, UK)
https://arxiv.org/abs/2507.15971 https://arxiv…

Red Supergiant Mass Loss and Mass-Loss Rates
This review discusses the causes, nature, importance and observational evidence of mass loss by red supergiants. It arrives at the perception that mass loss finds its origin in the gravity which makes the star a star in the first place, and is a mechanism for the star to equilibrate. This is corroborated by a careful examination of various popular historical and recent empirical mass-loss rate prescriptions and theoretical works, and which provides no evidence for an explicit dependence of red …

Radiation Hydrodynamic Simulations of Low-Energy Explosions of Red and Yellow Supergiants
Andrea Antoni, Yan-Fei Jiang, Eliot Quataert
https://arxiv.org/abs/2509.16308 https://

Radiation Hydrodynamic Simulations of Low-Energy Explosions of Red and Yellow Supergiants
A variety of physical processes leads to the low-energy ejection of material from the hydrogen-rich envelopes of red and yellow supergiants. These include common envelope events, stellar mergers, eruptive mass loss, and failed supernovae. These events may appear as luminous red novae, intermediate luminosity red transients, supernova imposters, or other transients with similar lightcurves and colors that are followed by the disappearance of the progenitor star (e.g. failed supernovae). The Vera…

Hidden massive eclipsing binaries in red supergiant systems: The hierarchical triple system KQ Puppis and other candidates
D. Jadlovsk\'y, L. Moln\'ar, A. Ercolino, M. Bernini-Peron, A. M\'erand, J. Krti\v{c}ka, L. Wang, R. Z. \'Ad\'am, D. Baade, G. Gonz\'alez-Tor\`a, T. Granzer, J. Jan\'ik, J. Kol\'a\v{r}, K. Kravchenko, N. Langer, L. M. Oskinova, D. Pauli, V. Ramachandran, A. C. Rubio, A. A. C. Sander, K. G. Strassmeier, M. Weber, M. Wittkowski, R. Bra…

Hidden massive eclipsing binaries in red supergiant systems: The hierarchical triple system KQ Puppis and other candidates
The majority of massive stars are part of binary systems that may interact during their evolution. This has important consequences for systems in which one star develops into a Red supergiant (RSG); however, not many RSGs are known binaries. We aim to better constrain the properties of some of the known RSGs in binaries. We first focus on the VV Cephei type RSG KQ Pup (RSG+B-type companion, orbital period of 26 yr), where we have enough data to constrain the system's properties. We use archiv…

MARTA: The connection between chemical enrichment, feedback, and dust in a Wolf-Rayet galaxy at z${\sim}$2
Mirko Curti, Elisa Cataldi, Francesco Belfiore, Bianca Moreschini, Magda Arnaboldi, Martyna Chru\'sli\'nska, Filippo Mannucci, Alessandro Marconi, Quirino D'Amato, Stefano Carniani, William M. Baker, Annalisa De Cia, Nimisha Kumari, Amirnezam Amiri, Giovanni Cresci, Chiaki Kobayashi, Fergus Cullen, Anna Feltre, Roberto Maiolino

MARTA: The connection between chemical enrichment, feedback, and dust in a Wolf-Rayet galaxy at z${\sim}$2
We present the analysis of the stellar and interstellar medium (ISM) properties of MARTA-4327, a star-forming galaxy at z=2.224 observed by means of deep JWST/NIRSpec spectroscopy in both medium- and high-resolution gratings as part of the "Measuring Abundances at high Redshift with the Te Approach" (MARTA) programme. We report one of the highest-redshift detections of the Wolf-Rayet (WR) blue and red bumps in a non-lensed system. The broad He ii$λ$4686 feature is consistent with a young (${\s…

Simulated 3D $^{56}$Ni Distributions of Type IIp Supernovae
David Vartanyan, Adam Burrows, Lizzy Teryoshin, Tianshu Wang, Daniel Kasen, Benny Tsang, Matthew S. B. Coleman
https://arxiv.org/abs/2509.16314

Simulated 3D $^{56}$Ni Distributions of Type IIp Supernovae
We present the first three-dimensional study of the asymptotic ejecta distributions for a suite of theoretical Type IIp supernovae originating from red supergiant progenitors. We simulate using the radiation-hydrodynamic code F{\sc{ornax}} from core bounce through the first seconds of the neutrino-driven explosion and then follow using a hydrodynamic variant of the code FLASH until shock breakout of the star and through to homologous expansion of the ejecta into the circumstellar environment. O…

A Spectroscopic Hunt for Post-Red Supergiants in the Large Magellanic Cloud II: Turbulent Line Broadening in the Spectra of LMC Yellow Supergiants
Trevor Z. Dorn-Wallenstein, Kaitlyn M. Chen, Samantha C. Wu, Jared A. Goldberg, Anna J. G. O'Grady, Ayanna T. Mann, Poderosa I. Don-Wallanchez
https://arxiv.org/abs/2508.14971

A Spectroscopic Hunt for Post-Red Supergiants in the Large Magellanic Cloud II: Turbulent Line Broadening in the Spectra of LMC Yellow Supergiants
Massive stars in the Hertzsprung gap are a mixed population of objects in short-lived evolutionary phases: yellow supergiants (YSGs) evolving towards the red supergiant (RSG) phase, partially-stripped post-RSGs, and other, rarer outcomes of stellar evolution. Studies of sufficiently large samples of these objects can constrain massive star structure and evolution during these poorly-understood phases. As part of our ongoing program searching for post-RSGs, we characterized the spectral line pro…

Need for PRIMA to understand the nature and ISM physical conditions of HST-dark galaxies
Carlotta Gruppioni, Lee Armus, Matthieu Bethermin, Laura Bisigello, Denis Burgarella, Francesco Calura, Ivan Delvecchio, Andrea Enia, Andreas Faisst, Francesca Pozzi, Giulia Rodighiero, Alberto Traina, Livia Vallini
https://arxiv.org/abs/2509.01988

Need for PRIMA to understand the nature and ISM physical conditions of HST-dark galaxies
One of the main open issues in galaxy formation and evolution is the early assembly of the most massive galaxies and their contribution to the stellar mass and star formation rate densities at early epochs. Massive red sources already in place at z > 2 to 3 have been found in deep Spitzer-IRAC and ALMA surveys. They are often called optically and near-IR dark, or HST-dark, being undetected even in the deepest HST frames. The submillimeter (i.e., ALMA) detection of these sources confirms their h…

Blue Stragglers and Friends: Initial Evolutionary Pathways in Close Low-Mass Binaries: Literature Review
Robert D. Mathieu, Onno R. Pols
https://arxiv.org/abs/2509.20531 https:/…

Blue Stragglers and Friends: Initial Evolutionary Pathways in Close Low-Mass Binaries: Literature Review
The scope of this literature review is observations of the products of first-stage evolution for binaries having components with M < 2 $M_\odot$. A taxonomy for these products comprises dwarfs ("blue stragglers"), giants ("yellow stragglers"), subdwarf B stars, and giant-like stars ("sub-subgiants" and "red stragglers"). This literature review is organized according to this taxonomy within three distinct environments: open star clusters, globular star clusters, and the Galactic field. This li…

Effect of Matter Accretion on Lithium Enhancement of Giants
Xuefeng Li, Jianrong Shi, Yan Li, Hongliang Yan, Jinghua Zhang, Fei Guo
https://arxiv.org/abs/2508.00405 https://

Effect of Matter Accretion on Lithium Enhancement of Giants
A subset of low-mass giants ($<2.2\,M_{\odot}$) exhibit anomalous lithium enhancement behavior, which is still an open topic. Given that more massive giants retain more surface lithium, increasing mass by accreting circumstellar matter could be a channel to enrich lithium. We evaluate this process in the current work. Using MESA, we construct a model of matter accretion, including mass loss, that evolves a star from the main sequence turnoff to the red giant branch tip. The mean accretion rate …

Hubble Space Telescope Imaging of Three Isolated Faint Dwarf Galaxies Beyond the Local Group: Pavo, Corvus A, and Kamino
Bur\c{c}in Mutlu-Pakdil, Michael G. Jones, David J. Sand, Denija Crnojevi\'c, Kai Herron, Jay Strader, Dennis Zaritsky, Paul Bennet, Alex Drlica-Wagner, Quinn O. Casey, Amandine Doliva-Dolinsky, Richard Donnerstein, Catherine E. Fielder, Laura C. Hunter, Annika H. G. Peter, Deepthi S. Prabhu, Kristine Spekkens

Hubble Space Telescope Imaging of Three Isolated Faint Dwarf Galaxies Beyond the Local Group: Pavo, Corvus A, and Kamino
We present new Hubble Space Telescope (HST) imaging of three recently discovered star-forming dwarf galaxies beyond the Local Group: Pavo, Corvus A, and Kamino. The discovery of Kamino is reported here for the first time. They rank among the most isolated faint dwarf galaxies known, hence they provide unique opportunities to study galaxy evolution at the smallest scales, free from environmental effects of more massive galaxies. Our HST data reach $\sim$2-4 magnitudes below the tip of the red gi…

The ALMA Survey of 70 $\mu$m Dark High-mass Clumps in Early Stages (ASHES). XII. Unanchored Forked Stream in the Propogating Path of a Protostellar Outflow
Shuting Lin, Siyi Feng, Patricio Sanhueza, Ke Wang, Zhi-Yu Zhang, Yichen Zhang, Fengwei Xu, Junzhi Wang, Kaho Morii, Hauyu Baobab Liu, Sheng-Yuan Liu, Lile Wang, Hui Li, Daniel Tafoya, Willem Baan, Shanghuo Li, Giovanni Sabatini

The ALMA Survey of 70 $μ$m Dark High-mass Clumps in Early Stages (ASHES). XII. Unanchored Forked Stream in the Propogating Path of a Protostellar Outflow
Outflows are key indicators of ongoing star formation. We report the discovery of an unanchored forked stream within the propagating path of an extremely young protostellar outflow in the 70 $μ$m-dark clump G34.74-0.12, based on ALMA 1.3 mm observations with an angular resolution of 1''.6 (~ 5000 au). This outflow originate from a 9.7 $M_{\odot}$ core, exhibits a fork-shaped stream structure in its red-shifted lobe, which is traced by CO (2-1), SiO (5-4), and H$_2$CO (3$_{0,3}$-2$_{0,2}$). It …