#star-formation — Public Fediverse posts

Weekly Update from the Open Journal of Astrophysics 25/07/2026

It’s time once more for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further nine papers, bringing the number in Volume 9 (2026) to 160 and the total so far published by OJAp up to 608.

I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.

The first paper to report this week was published on Tuesday 21st July in the folder Cosmology and Nongalactic Astrophysics. The title is “Characterization of the Polarization Beam Response of SPT-3G Using Point Sources” by Tijmen de Haan (Institute of Particle and Nuclear Studies, Ibaraki, Japan) and an international cast of 101 others. This study presents measurements of the South Pole Telescope’s polarized beam response, indicating minimal sidelobe depolarization. The findings suggest potential explanations for frequency-dependent residuals in power spectrum analysis.

The overlay for this paper is here

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116956682988048349

The second paper for this week, also published on Tuesday 21st July but in the folder Earth and Planetary Astrophysics is: “Exploring TRAPPIST-1 Climate States with an Energy Balance Model” by Jacob Haqq-Misra (Blue Marble Space, USA). The study uses a modified HEXTOR energy balance model to predict climate states of terrestrial planets orbiting low-mass stars, suggesting partial to complete ice cover for TRAPPIST-1 e and f.Abstractfor Exploring TRAPPIST-1 Climate States with an Energy Balance Model.

The overlay looks like this:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116956824712105776

The third paper of the week, also published on Tuesday 21st July, but in the folder Astrophysics of Galaxies is “A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years” by Hiddo Algera (Institute of Astronomy and Astrophysics, Taipei, Taiwan) and 37 others from all around the world. This paper presents deep observations of four UV-bright, gravitationally lensed galaxies, revealing an ionized outflow in one and highlighting the diagnostic power of [O III]88 μm in studying galaxies in the early Universe.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116956879536002543

The fourth paper of the week, published on Thursday 23rd July in the folder Astrophysics of Galaxies, is “Mapping CO Ice in a Star-Forming Filament in the 3 kpc Arm with JWST” by Savannah Gramze (U. Florida, USA) and 16 others based all around the world. This paper shows that JWST observations and ALMA Band 3 data reveal that 50-88% of CO gas in a star-forming filament is locked in ice; corrections are needed for mass measurements in such systems.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968030387635232

The fifth paper of the week, also published on Thursday 23rd July but in the folder High-Energy Astrophysical Phenomena, is “Viscously Spreading Accretion Disks around Black Holes: Implications for TDEs, LFBOTs and other Transients“. This article presents a time-dependent model of accretion disks around black holes, explaining late-time emission in tidal disruption events and luminous fast blue optical transients and future detectability of such events.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968076410638262

The sixth paper of this week is “Characterising the response of an International LOFAR Station” by Letizia Vincetti (Trinity Collge Dublin, Ireland) and 9 others based in Ireland, USA, The Netherlands and Sweden. This was also published on Thursday July 23rd and is in the folder Instrumentation and Methods for Astrophysics. The article presents an investigation of the performance and calibration challenges of phased-array radio interferometers, using the Irish LOFAR station as a case study, highlighting the importance of accurate beam modelling, etc.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968134127626260

The seventh paper of this week is “Exo Skryer: A JAX-accelerated sub-stellar atmospheric retrieval framework” by Elspeth K.H. Lee (U. Bern, Switzerland). Published on Friday 24th July in the folder Earth and Planetary Astrophysics, this article introduces “Exo Skryer”, a new, efficient framework for exoplanet and brown dwarf atmospheric research, capable of handling large data sets and complex models.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974013616759329

The (penultimate) eighth paper of this week is “GCR Spectra Reconstructed with Neutron Monitor Yield Function and Artificial Neural Networks: Comparison of Two Methods” by Stepan A. Siruk (Moscow Engineering Physics Institute MEPhI, Russia) and four others, all based in Russia. Published on Friday 24th July in the folder Instrumentation and Methods for Astrophysics, this article presents a framework using artificial neural networks and neutron monitors to reconstruct cosmic-ray energy spectra, providing data even in the absence of direct satellite observations.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974048321854911

And finally for this week we have “The failed failed-supernova scenario of M31-2014-DS1” by Noam Soker (Technion, Israel), a paper which challenges the failed-supernova theory for the fading of the yellow supergiant event M31-2014-DS1, suggesting it requires unlikely parameters and supports an alternative scenario involving violent binary interaction. This was published on Friday 24th July in the folder High-Energy Astrophysical Phenomena.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974082942533765

And that concludes the update of this week’s business. As it was foretold, the total number of publications at OJAp has now passed the 600 mark, and the likely number for 2026 is around 300. We published a paper in five of the six astro-ph categories this week, but still haven’t had a week when we’ve published a full house with at least one in all six…

Astronomers thought that early galaxies were messy, clumpy, and turbulent from mergers. That means their gas was all stirred up. So what could explain the rapid star formation during the Cosmic Noon?… #science #galaxies #starformation

https://www.universetoday.com/articles/spiral-arms-and-bars-are-galactic-fuel-pumps-for-star-formation?utm_source=flipboard&utm_medium=activitypub

Posted into FLIPBOARD EXCHANGE FEED 🗞️ @flipboard-exchange-feed-Econopass

Probing the ion-neutral drift velocity toward the L1544 prestellar core - detection of ambipolar diffusion using N2D+ and para-NH2D: https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202658871 -> Capturing the cosmic ‘drift’ before a star is born: https://www.kyushu-u.ac.jp/en/researches/view/405 - researchers observe the velocity difference between two molecules in a prestellar core, elucidating the process of early #StarFormation.

Probing the ion-neutral drift velocity toward the L1544 prestellar core - detection of ambipolar diffusion using N2D+ and para-NH2D: https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202658871 -> Capturing the cosmic ‘drift’ before a star is born: https://www.kyushu-u.ac.jp/en/researches/view/405 - researchers observe the velocity difference between two molecules in a prestellar core, elucidating the process of early #StarFormation.

Turbulence in Primordial Dark Matter Halos and Its Impact on the First #StarFormation: https://iopscience.iop.org/article/10.3847/1538-4357/ae731d -> Cosmic Storms Shaped the First Stars in the Universe: https://press.asiaa.sinica.edu.tw/ASIAA_TAIWAN_News/260618 - new simulations reveal that violent turbulence inside primordial dark matter halos fragmented the Universe’s first star-forming clouds.

Turbulence in Primordial Dark Matter Halos and Its Impact on the First #StarFormation: https://iopscience.iop.org/article/10.3847/1538-4357/ae731d -> Cosmic Storms Shaped the First Stars in the Universe: https://press.asiaa.sinica.edu.tw/ASIAA_TAIWAN_News/260618 - new simulations reveal that violent turbulence inside primordial dark matter halos fragmented the Universe’s first star-forming clouds.

SW Bar 3 - Star-forming region in the Small Magellanic Cloud - JWST Space Telescope ❔

#astronomy #esa #jwst #nasa #smallmagellaniccloud #space #starformation #swbar3

▶️ 1 new picture from Individuals (Flickr) https://commons.wikimedia.org/wiki/File:SW_Bar_3_-_Star-forming_region_in_the_Small_Magellanic_Cloud_-_JWST_Space_Telescope_%2855344110560%29.png

SW Bar 3 - Star-forming region in the Small Magellanic Cloud - JWST Space Telescope ❔

#astronomy #esa #jwst #nasa #smallmagellaniccloud #space #starformation #swbar3

▶️ 1 new picture from Individuals (Flickr) https://commons.wikimedia.org/wiki/File:SW_Bar_3_-_Star-forming_region_in_the_Small_Magellanic_Cloud_-_JWST_Space_Telescope_%2855344110560%29.png

FU Orionis ✨

#fuori #fuorionis #infrared #nebula #spitzer #starformation #wise

▶️ 1 new picture from @spacegeck https://commons.wikimedia.org/wiki/File:FU_Orionis_%2855279187279%29.png

FU Orionis ✨

#fuori #fuorionis #infrared #nebula #spitzer #starformation #wise

▶️ 1 new picture from @spacegeck https://commons.wikimedia.org/wiki/File:FU_Orionis_%2855279187279%29.png

Hubble's Gaze Unveils Galactic Dynamics, Stellar Birthplaces

Hubble telescope images show how gas and dust in galaxies create new stars. This helps scientists understand how galaxies grow and change.

#Hubble #Space #Astronomy #StarFormation #Galaxies

https://newsletter.tf/hubble-shows-new-stars-forming-in-galaxies/

Hubble's new images reveal areas where new stars are being born in galaxies like NGC 4535. These bright spots show dense gas clouds where star formation happens.

#Hubble #Space #Astronomy #StarFormation #Galaxies
https://newsletter.tf/hubble-shows-new-stars-forming-in-galaxies/

Cosmic Clusters Operate by Unseen Principle

Scientists find star formation in clusters isn't random. A new principle based on information theory predicts star types and numbers based on gas cloud mass.

#StarFormation, #CosmicClusters, #Astrophysics, #InformationTheory, #ScienceNews

https://newsletter.tf/star-formation-predictable-order-in-clusters/

New research shows that the sizes of stars formed in clusters are not random. This is like knowing the exact number of red and blue balls you'll get before you start picking from a bag.

#StarFormation, #CosmicClusters, #Astrophysics, #InformationTheory, #ScienceNews
https://newsletter.tf/star-formation-predictable-order-in-clusters/

Why do some galaxies suddenly stop forming stars? Explore the cosmic mystery behind star formation shutdowns, uncovering clues about dark matter, gas depletion, and galactic evolution.
#CosmicMystery #GalaxyEvolution #StarFormation #UniverseSecrets
https://www.scientificworldinfo.com/2026/04/why-do-some-galaxies-stop-forming-stars-suddenly.html

Discover the cosmic chaos when two galaxies’ magnetic fields collide — unraveling mysteries of star formation, cosmic turbulence, and interstellar energy.
#GalacticCollision #MagneticFields #CosmicMysteries #SpaceScience #StarFormation
https://www.scientificworldinfo.com/2026/04/what-happens-when-two-galaxies-magnetic-fields-collide.html

W51A with JWST NIRCam

program: 6151 https://www.stsci.edu/jwst-program-info/program/?program=6151

PI: Taehwa Yoo

FITS-files were shared with me by co-PI Adam Ginsburg

Filters: F140M, F182M, F210M

I created this image with SAO Image DS9, Photoshop Elements and G'MIC filter "banding denoise" (Authors: Ian Fergusson and David Tschumperlé)

Image is 50% original resolution. Full-resolution image (cropped) here: https://commons.wikimedia.org/wiki/File:W51A_JWST_NIRCam_(short_wavelength).jpg

#astronomy #space #starformation #jwst #stars #science

W51A with JWST NIRCam

program: 6151 https://www.stsci.edu/jwst-program-info/program/?program=6151

PI: Taehwa Yoo

FITS-files were shared with me by co-PI Adam Ginsburg

Filters: F140M, F182M, F210M

I created this image with SAO Image DS9, Photoshop Elements and G'MIC filter "banding denoise" (Authors: Ian Fergusson and David Tschumperlé)

Image is 50% original resolution. Full-resolution image (cropped) here: https://commons.wikimedia.org/wiki/File:W51A_JWST_NIRCam_(short_wavelength).jpg

#astronomy #space #starformation #jwst #stars #science

#xkcd: #StarFormation

https://xkcd.com/3222/

#Humour #Cartoon

#xkcd: #StarFormation

https://xkcd.com/3222/

#Humour #Cartoon

ALMA Maps Cold Gas Filaments in the Milky Way’s Central Region

📰 Original title: ALMA captures the most detailed image ever of the Milky Way’s turbulent core

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/alma-maps-cold-gas-filaments-in-the-milky-ways-central-region/?redirpost=da9e1515-6cc9-4779-85aa-f5b086b4501c

#astronomy #milkyway #alma #starformation

James Webb Telescope Discovers Distant Jellyfish Galaxy with Star Formation

📰 Original title: James Webb spots a galaxy with tentacles in deep space

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/james-webb-telescope-discovers-distant-jellyfish-galaxy-with-star-formation/?redirpost=af50d0a1-7360-45ad-bb7d-b25a804f8abb

#astronomy #jellyfishgalaxy #jwst #starformation

Weekly Update from the Open Journal of Astrophysics – 07/02/2026

It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 24 and the total so far published by OJAp up to 472.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter which nobody should be using; these announcement also show the DOI for each paper.

The first paper to report this week is “The Impact of Star Formation and Feedback Recipes on the Stellar Mass and Interstellar Medium of High-Redshift Galaxies” by Harley Katz (U. Chicago, USA), Martin P. Rey (U. Oxford, UK), Corentin Cadiou (Lund U., Sweden) Taysun Kimm (Yonsei U., Korea) and Oscar Agertz (Lund). This paper was published on Monday 2nd February 2026 in the folder Astrophysics of Galaxies. It introduces MEGATRON, a new model for galaxy formation simulations, highlighting that feedback energy controls star formation at high redshift and highlighting the importance of the interstellar medium.

The overlay is here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116000695648050758

The second paper is “Photometric Redshifts in JWST Deep Fields: A Pixel-Based Alternative with DeepDISC” by Grant Merz (U. Illinois at Urbana-Champaign) and 6 others, all based in the USA. This paper was published on Monday February 2nd 2026 in the folder Instrumentation and Methods for Astrophysics. This paper explores the effectiveness of the DeepDISC machine learning algorithm in estimating photometric redshifts from near-infrared data, demonstrating its potential for larger image volumes and spectroscopic samples

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116000777572439111

Next, published on Wednesday 4th February in the folder Astrophysics of Galaxies, is “Inferring Interstellar Medium Density, Temperature, and Metallicity from Turbulent H II Regions” by Larrance Xing (U. Chicago, USA), Nicholas Choustikov (U. Oxford, UK), Harley Katz (U. Chicago) and Alex J. Cameron (DAWN, Denmark). This paper argues that supersonic turbulenc affects the interpretation of H II region properties, potentially impacting inferred metallicity, ionization, and excitation from in nebular emission lines, motivating more extensive modelling.

The overlay is here:

The official version can be found on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116011384659092223

The fourth paper this week, also published on Wednesday 4th February, but in the folder Solar and Stellar Astrophysics, is “A Systematic Search for Big Dippers in ASAS-SN” by B. JoHantgen, D. M. Rowan, R. Forés-Toribio, C. S. Kochanek, & K. Z. Stanek (Ohio State University, USA), B. J. Shappee (U. Hawaii, USA), Subo Dong (Peking University), J. L. Prieto Universidad Diego Portales, Chile) and Todd A. Thompson (Ohio State). This study identifies 4 new dipper stars and 15 long-period eclipsing binary candidates using ASAS-SN light curves and multi-wavelength data, categorizing them based on their characteristics.

Here is the overlay:

The official version can be found on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116011460612040834

Fifth, and next to last this week we have “Unveiling the drivers of the Baryon Cycles with Interpretable Multi-step Machine Learning and Simulations” by Mst Shamima Khanom, Benjamin W. Keller and Javier Ignacio Saavedra Moreno (U. Memphis, USA). This paper was published on Thursday 5th February 2026 in the folder Astrophysics of Galaxies. This study uses machine learning methods to understand how galaxies lose or retain baryons, highlighting the relationship between baryon fraction and various galactic measurements.

The overlay is here:

The accepted version can be found on arXiv here, and the fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116016883984380622

Finally for this week we have “The Bispectrum of Intrinsic Alignments: II. Precision Comparison Against Dark Matter Simulations” by Thomas Bakx (Utrecht U., Netherlands), Toshiki Kurita (MPA Garching, Germany), Alexander Eggemeier (U. Bonn, Germany), Nora Elisa Chisari (Utrecht) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was accepted in December, but publication got delayed by the Christmas effect so was published on February 6th 2026, in the folder Cosmology and Nongalactic Astrophysics. This study uses N-body simulations to accurately measure three-dimensional bispectra of halo intrinsic alignments and dark matter overdensities, providing a method to determine higher order shape bias parameters.

The overlay is here:

You can find the published version of the article here, and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116022562915557971

And that concludes this week’s update. I will do another next Saturday.

Weekly Update from the Open Journal of Astrophysics – 07/02/2026

It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 24 and the total so far published by OJAp up to 472.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter which nobody should be using; these announcement also show the DOI for each paper.

The first paper to report this week is “The Impact of Star Formation and Feedback Recipes on the Stellar Mass and Interstellar Medium of High-Redshift Galaxies” by Harley Katz (U. Chicago, USA), Martin P. Rey (U. Oxford, UK), Corentin Cadiou (Lund U., Sweden) Taysun Kimm (Yonsei U., Korea) and Oscar Agertz (Lund). This paper was published on Monday 2nd February 2026 in the folder Astrophysics of Galaxies. It introduces MEGATRON, a new model for galaxy formation simulations, highlighting that feedback energy controls star formation at high redshift and highlighting the importance of the interstellar medium.

The overlay is here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116000695648050758

The second paper is “Photometric Redshifts in JWST Deep Fields: A Pixel-Based Alternative with DeepDISC” by Grant Merz (U. Illinois at Urbana-Champaign) and 6 others, all based in the USA. This paper was published on Monday February 2nd 2026 in the folder Instrumentation and Methods for Astrophysics. This paper explores the effectiveness of the DeepDISC machine learning algorithm in estimating photometric redshifts from near-infrared data, demonstrating its potential for larger image volumes and spectroscopic samples

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116000777572439111

Next, published on Wednesday 4th February in the folder Astrophysics of Galaxies, is “Inferring Interstellar Medium Density, Temperature, and Metallicity from Turbulent H II Regions” by Larrance Xing (U. Chicago, USA), Nicholas Choustikov (U. Oxford, UK), Harley Katz (U. Chicago) and Alex J. Cameron (DAWN, Denmark). This paper argues that supersonic turbulenc affects the interpretation of H II region properties, potentially impacting inferred metallicity, ionization, and excitation from in nebular emission lines, motivating more extensive modelling.

The overlay is here:

The official version can be found on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116011384659092223

The fourth paper this week, also published on Wednesday 4th February, but in the folder Solar and Stellar Astrophysics, is “A Systematic Search for Big Dippers in ASAS-SN” by B. JoHantgen, D. M. Rowan, R. Forés-Toribio, C. S. Kochanek, & K. Z. Stanek (Ohio State University, USA), B. J. Shappee (U. Hawaii, USA), Subo Dong (Peking University), J. L. Prieto Universidad Diego Portales, Chile) and Todd A. Thompson (Ohio State). This study identifies 4 new dipper stars and 15 long-period eclipsing binary candidates using ASAS-SN light curves and multi-wavelength data, categorizing them based on their characteristics.

Here is the overlay:

The official version can be found on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116011460612040834

Fifth, and next to last this week we have “Unveiling the drivers of the Baryon Cycles with Interpretable Multi-step Machine Learning and Simulations” by Mst Shamima Khanom, Benjamin W. Keller and Javier Ignacio Saavedra Moreno (U. Memphis, USA). This paper was published on Thursday 5th February 2026 in the folder Astrophysics of Galaxies. This study uses machine learning methods to understand how galaxies lose or retain baryons, highlighting the relationship between baryon fraction and various galactic measurements.

The overlay is here:

The accepted version can be found on arXiv here, and the fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116016883984380622

Finally for this week we have “The Bispectrum of Intrinsic Alignments: II. Precision Comparison Against Dark Matter Simulations” by Thomas Bakx (Utrecht U., Netherlands), Toshiki Kurita (MPA Garching, Germany), Alexander Eggemeier (U. Bonn, Germany), Nora Elisa Chisari (Utrecht) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was accepted in December, but publication got delayed by the Christmas effect so was published on February 6th 2026, in the folder Cosmology and Nongalactic Astrophysics. This study uses N-body simulations to accurately measure three-dimensional bispectra of halo intrinsic alignments and dark matter overdensities, providing a method to determine higher order shape bias parameters.

The overlay is here:

You can find the published version of the article here, and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116022562915557971

And that concludes this week’s update. I will do another next Saturday.

Weekly Update from the Open Journal of Astrophysics – 31/01/2026

It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further three papers, bringing the number in Volume 9 (2026) to 18 and the total so far published by OJAp up to 466.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter which nobody should be using; these announcement also show the DOI for each paper.

The first paper to report this week is “Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect” by Lucijana Stanic (University of Zurich, Switzerland) and 13 others based in Zurich, Lausanne and Geneva (all in Switzerland). This was published on Monday 26th January 2026 in the folder Instrumentation and Methods for Astrophysics. This research demonstrates that intensity interferometry can reveal internal stellar kinematics, providing a new way to observe stellar dynamics with high time resolution.

The overlay is here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/115961234375736584

The second paper is “DIPLODOCUS I: Framework for the evaluation of relativistic transport equations with continuous forcing and discrete particle interactions” by Christopher N Everett & Garret Cotter (University of Oxford, UK). This was published on Tuesday January 27th 2026 in the folder High-Energy Astrophysical Phenomena. DIPLODOCUS is a new framework for mesoscopic modelling of astrophysical systems, using an integral formulation of relativistic transport equations and a discretisation procedure for particle distributions.

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/115966199181415094

Next, also published on Tuesday January 27th but in the folder Cosmology and Nongalactic Astrophysics we have “The Atacama Cosmology Telescope: DR6 Sunyaev-Zel’dovich Selected Galaxy Clusters Catalog” by M. Aguena et al. (101 authors altogether), on behalf of the ACT-DES-HSC Collaboration. This article reports on the discovery of 10,040 galaxy clusters in the Atacama Cosmology Telescope data, including 1,180 clusters at high redshifts, using the Sunyaev-Zel’dovich effect.

The overlay is here:

The official version can be found on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/115966458299870033

And finally for this week we have a paper published yesterday, Friday 30th January 2026, in the folder Astrophysics of Galaxies. This is the paper I blogged about yesterday: “A Cosmic Miracle: A Remarkably Luminous Galaxy at zspec = 14.44 Confirmed with JWST” by Rohan Naidu (MIT Kavli Institute) and an international cast of 45 others. This article reports on the discovery by the James Webb Space Telescope (JWST) of a bright galaxy, MoM-z14, located 280 million years post-Big Bang, that challenges models of galaxy formation and the star-formation history of early galaxies.

The overlay is here:

The accepted version can be found on arXiv here, and the fediverse announcement is here:

https://fediscience.org/@OJ_Astro/115982837486159819

And that concludes the update for this week. I will do another next Saturday.

#ACTDESHSCCollaboration #arXiv250511263v2 #arXiv250721459v3 #arXiv250813296v4 #arXiv250913152v2 #AstridSimulations #AstrophysicsOfGalaxies #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #DIPLODOCUS #galaxyClusters #galaxyFormation #HanburyBrownAndTwiss #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #JWST #largeScaleStructureOfTheUniverse #MoMZ14 #OpenAccess #OpenAccessPublishing #OpenJournalOfAstrophysics #PlasmaPhysics #relativisticTransportEquations #starFormation #StellarKinematics #SunyaevZeDovichEffect #TheOpenJournalOfAstrophysics

⭐ Every star that lights the night once faced an impossible challenge: transforming from a cold, dark cloud into nuclear fire. The universe demands precise conditions most clouds never achieve.

✍️ Discover what separates failed attempts from blazing success 🌟: https://TPC8.short.gy/WeAxAQoa

🌌 In cosmic depths, gravity whispers secrets of stellar birth

#Astrophysics #StarFormation #StellarEvolution #Astronomy #SciComm #Physics #Space #TPC8

⭐ Every star that lights the night once faced an impossible challenge: transforming from a cold, dark cloud into nuclear fire. The universe demands precise conditions most clouds never achieve.

✍️ Discover what separates failed attempts from blazing success 🌟: https://TPC8.short.gy/WeAxAQoa

🌌 In cosmic depths, gravity whispers secrets of stellar birth

#Astrophysics #StarFormation #StellarEvolution #Astronomy #SciComm #Physics #Space #TPC8

Hubble Observes Ghostly Cloud Alive with Star Formation https://www.nasa.gov/image-detail/hubble-lupus3-48-tt-new-cont-final/?utm_source=dlvr.it&utm_medium=mastodon #Hubble #NASA #StarFormation #Astrophysics #Space

Natürlich musste die erste klare Nacht seit Wochen auf eine Vollmondnacht fallen. Durch das helle Mondlicht blieben nicht viele Ziele, daher fiel meine Wahl auf NGC 7000.

https://adfr.io/astro/20251105_ngc7000/

#astrophotography #astrophoto #astrodon #deepsky #astronomy #deepskyphotography #starformation #cosmos

Natürlich musste die erste klare Nacht seit Wochen auf eine Vollmondnacht fallen. Durch das helle Mondlicht blieben nicht viele Ziele, daher fiel meine Wahl auf NGC 7000.

https://adfr.io/astro/20251105_ngc7000/

#astrophotography #astrophoto #astrodon #deepsky #astronomy #deepskyphotography #starformation #cosmos

Here's a cutout, this is about 1% of the full image. Young stars, dust and gas being blown out, a lot is going on. The #ESA page has in-depth explanations.

#starformation #stars #astronomy

Here's a cutout, this is about 1% of the full image. Young stars, dust and gas being blown out, a lot is going on. The #ESA page has in-depth explanations.

#starformation #stars #astronomy

Das Bubble-Nebel zusammen mit der Lobster-Claw-Nebel und dem Sternhaufen M52. Gewaltige Sternwinde formen hier Gas und Staub zu eindrucksvollen Strukturen.

https://adfr.io/astro/20250920_sh2-157/

#Astrophotography #Astrodon #Astrophoto #DeepSky #DeepSkyPhotography #StarFormation #Cosmos #astrophoto #astrodon

Das Bubble-Nebel zusammen mit der Lobster-Claw-Nebel und dem Sternhaufen M52. Gewaltige Sternwinde formen hier Gas und Staub zu eindrucksvollen Strukturen.

https://adfr.io/astro/20250920_sh2-157/

#Astrophotography #Astrodon #Astrophoto #DeepSky #DeepSkyPhotography #StarFormation #Cosmos #astrophoto #astrodon

Geformt von Wolf-Rayet-Sternen und durchzogen von dunklen Staubstrukturen - ein Blick in die Tiefen von Cepheus: Sh2-132, der Lion Nebula.

https://adfr.io/astro/20250919_sh2-132/

#Astrophotography #Astrodon #Astrophoto #DeepSky #DeepSkyPhotography #StarFormation #Cosmos

Geformt von Wolf-Rayet-Sternen und durchzogen von dunklen Staubstrukturen - ein Blick in die Tiefen von Cepheus: Sh2-132, der Lion Nebula.

https://adfr.io/astro/20250919_sh2-132/

#Astrophotography #Astrodon #Astrophoto #DeepSky #DeepSkyPhotography #StarFormation #Cosmos

LZ-STAR Survey - Low-metallicity #StarFormation Survey of Sh2-284 - Ordered Massive Star Formation in the Outer Galaxy: https://iopscience.iop.org/article/10.3847/1538-4357/addf4b -> NASA’s Webb Observes Immense Stellar Jet on Outskirts of Our Milky Way: https://science.nasa.gov/missions/webb/nasas-webb-observes-immense-stellar-jet-on-outskirts-of-our-milky-way/

How does feedback affect the #StarFormation histories of galaxies? https://arxiv.org/abs/2508.21152 -> teaser: https://bsky.app/profile/jwuphysics.bsky.social/post/3lxunuhbzos2b

🦅 Eagle Nebula’s Towering Beauty

This cosmic pillar rises 9.5 light-years (~90 trillion km) high!

A stellar nursery where new stars are born.

📸 NASA/ESA/Hubble Heritage Team
#EagleNebula #StarFormation #Hubble #SpaceWonder

How many stars form in compact clusters in the local Milky Way? https://arxiv.org/abs/2508.12788 -> In a new paper we show that >80% of stars in the local Milky Way formed in clusters - this is *much* higher than other recent estimates (~15%), and supports more traditional 'clustered' models of #StarFormation: https://bsky.app/profile/emily.space/post/3lwqiwtcfyc2x (thread)

Der Elephant’s Trunk Nebula in IC 1396. Diese beeindruckende Säule aus Gas und Staub wird von massiven Sternen geformt und ist ein kosmisches Kinderzimmer für neue Sterne.

https://adfr.io/astro/20250819_ic1396

#Astrophotography #ElephantsTrunk #IC1396 #DeepSky #StarFormation #Cosmos #astrophoto #astrodon

HP Tau ✨

#fringe #hst #hubble #moiré #nebula #pattern #starformation #stars

▶️ 1 new picture from @spacegeck https://commons.wikimedia.org/wiki/File:HP_Tau_%2854718665158%29.png

🌌🔭 A cosmic spectacle! ESO’s Very Large Telescope spotted a protoplanet carving stunning spiral patterns in the disc of star HD 135344B, offering a rare glimpse into planet formation. A first in real-time observation!

@goodnews

#GoodNews #Protoplanet #SpaceDiscovery #VeryLargeTelescope #StarFormation
https://thedebrief.org/esos-very-large-telescope-spots-newfound-protoplanet-sculpting-patterns-in-a-distant-stars-disc/