#astrochemistry — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #astrochemistry, aggregated by home.social.
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The detailed mapping of the spatial distribution and chemical composition of interstellar ices within the dense gas and dust shells of early-stage forming stars (Class 0 protostars) in the Orion A molecular cloud.
#Astrochemistry #Astrophysics #Astronomy #sflorg
https://www.sflorg.com/2026/09/asph09102601.html -
The most common type of planet in the galaxy, known as mini- or sub-Neptunes, may harbor significantly more water than previously estimated by concealing it deep beneath thick, hydrogen-rich atmospheres.
#Astronomy #Astrophysics #PlanetaryScience #Astrochemistry #sflorg
https://www.sflorg.com/2026/07/astr07132601.html -
Astronomers Discover Mysterious Compound on Pluto and Titan
📰 Original title: Mysterious Compound Detected on Pluto and Titan
🤖 IA: It's not clickbait ✅
👥 Users: It's not clickbait ✅View full AI summary https://en.killbait.com/astronomers-discover-mysterious-compound-on-pluto-and-titan.html?utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait.mastodon_world
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Planetary engulfment is an astronomical event in which a star consumes an orbiting planet. This process rapidly alters the star's chemical composition, leaving behind distinct and measurable elemental signatures.
#Astronomy #Astrophysics #Astrochemistry #sflorg
https://www.sflorg.com/2026/06/astr06152601.html -
Weekly Update from the Open Journal of Astrophysics 13/06/2026
It’s Saturday again so it’s 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 122 and the total so far published by OJAp up to 570.
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, published on Thursday 11th June, is “Dancing Streams In Merging Halos: Stellar Streams in a MW–LMC-like merger” by (all based in the USA): Sachi Weerasooriya (Carnegie Observatories), Tjitske Starkenburg (Northwestern U.), Emily C. Cunningham (Columbia U.) & Kathryn V. Johnston (Flatiron Institute). This article explores how galaxy mergers, like the Milky Way-Large Magellanic Cloud merger, significantly alter the properties and structures of stellar streams, challenging the recovery of their initial orbits. It is in the folder marked Astrophysics of Galaxies.
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/116730200889106529
The second paper for this week, also published on Thursday 11th June but in the folder Cosmology and Nongalactic Astrophysics is “X-SORTER (X-ray Survey Of meRging clusTErs in Redmapper): X-ray and Spectroscopic Characterization of 12 Optically Selected Galaxy Cluster Merger Candidates” by Christopher Hopp, David Wittman, Rodrigo Stancioli, Zhuoran Gao & Faik Bouhrik (UC Davis) and Scott Adler (Rochester), all based in the USA. The X-SORTER program identifies merging galaxy clusters to study dark matter interactions, using optical indicators and X-ray observations. This method efficiently identifies active clusters suitable for detailed dark matter studies.
The overlay for this one 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/116730279994960097
The third and final paper of the week, published on Friday 12th June in the folder Earth and Planetary Astrophysics, is “JCMT Constraints on the Early-Time HCN and CO Emission and HCN Temporal Evolution of 3I/ATLAS” by Jason T. Hinkle (U. Illinois, USA) and 6 others based in the USA and Chile. This article presents observations of the third Interstellar Object, 3I/ATLAS, providing early sub-mm constraints on its activity. The findings suggest a steeper production rate slope than typical Solar System comets.
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/116735805179724489
And that concludes this week’s update. It has been a slow week on the publishing front, but the main reason is that we have a big backlog of papers accepted but waiting for the authors to put their final versions on arXiv and we can’t do anything about that! I’ll do another update next Saturday.
#3IAtlas #arXiv250514792v2 #arXiv251202106v3 #arXiv260305596v4 #astrochemistry #AstrophysicsOfGalaxies #CO #cosmologicalSimulations #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #EarthAndPlanetaryAstrophysics #galaxyClusters #GalaxyHalos #galaxyMergers #HCN #HighEnergyAstrophysicalPhenomena #interstellarObjects #OpenAccess #OpenAccessPublishing #spectroscopy #StellarStreams #XSORTER -
This event marks the simultaneous observation of the interstellar comet 3I/ATLAS by Ultraviolet Spectrograph (UVS) instruments aboard ESA's Juice and NASA's Europa Clipper spacecraft. The informally coordinated effort successfully captured the comet's ultraviolet emissions, gas breakdown, and scattered dust from both hemispheres.
#Astronomy #PlanetaryScience #Astrochemistry #Astrophysics #Spacecrafts #sflorg
https://www.sflorg.com/2026/05/astr05132601.html -
Detecting Molecules in Space: Excitement and Caution in the Search for Life
📰 Original title: Potential signs of life on distant planets sound exciting – but confirmation can take years
🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️View full AI summary: https://killbait.com/en/detecting-molecules-in-space-excitement-and-caution-in-the-search-for-life/?redirpost=b68c65c4-aece-4ecd-9589-a4c3cfe85c8f
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Moons orbiting free-floating planets can maintain liquid water oceans and potentially support complex life for billions of years without a parent star, utilizing dense hydrogen atmospheres and tidal heating.
#Astrophysics #Astrochemistry #Biophysics #sflorg
https://www.sflorg.com/2026/03/asph03112601.html -
Researchers have definitively identified nitrous oxide (N₂O), commonly known as "laughing gas," within the solid ice mantles coating dust particles around young #protostars
#Astrophysics #Astrochemistry #Astronomy #sflorg
https://www.sflorg.com/2026/01/asph01242601.html -
Weiter geht's mit 25 Jahre First Lasing #FLASH #TTF @DESY
Melanie Schnell: From FLASH to the Stars - Photochemistry of Polycyclic Aromatic Hydrocarbons
Heute ein faszinierender Blick „von FLASH bis zu den Sternen“: Melanie Schnell zeigt, wie wir mit modernen Laser- und Röntgenquellen die Photochemie polyzyklischer aromatischer Kohlenwasserstoffe (PAHs) untersuchen.
Diese komplexen Kohlenstoffringe finden sich nicht nur in Flammen und unserer Atmosphäre, sondern auch im interstellaren Medium – überall in der Galaxie. Überraschend: Rund 10–20 % des gesamten galaktischen Kohlenstoffs steckt in PAH-Molekülen!
Mit präzisen Labormethoden lassen sich ihre Strukturen und Reaktionen entschlüsseln – ein wichtiger Schritt, um besser zu verstehen, wie sich Moleküle im Weltraum bilden, verändern und vielleicht sogar Bausteine des Lebens hervorbringen. ✨🌌
#Astrochemistry #PAH #FLASH #PhotonScience [Tröt unterstützt durch ein LLM]
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#space #exploration #chemistry #astrochemistry
Ultra low chemistry on Saturn's moon Titan teaches us new tricks here on Earth:
https://www.universetoday.com/articles/titan-is-teaching-a-new-chemistry-lesson
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New research has found that amino acids, the building blocks of life, may have travelled to Earth on interstellar dust grains, potentially helping kickstart biology as we know it.
☑️ https://www.diamond.ac.uk/Home/News/LatestNews/2025/Cosmic-dust-could-have-sparked-life-on-Earth-.html
☑️ https://academic.oup.com/mnras/article/543/2/951/8246662#astrobiology #astrochemistry #life #astrodon #space #science #news
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We are headed into the season of the Nobel Prize. Announcements of awards will begin on October 6, with the Physics Prize being announced on the 7th. This year, I decided to have some fun in the “fediverse” and try to tease some nuggets out of the wisdom of the crowd.
While crowds are, in fact, not always wise, it is nonetheless fun to use some of the tools of the open social web to prompt […]
https://steve.cooleysekula.net/blog/2025/09/23/fediversing-the-2025-physics-prize/
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Poetically, it suggests: life on Earth is quite literally written in the stars, carried here on icy messengers from deep space.
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Interesting Harold Linnartz Astrochemistry Prize Lecture by Ilse Cleeves. She talked about "How Chemistry Governs the Birth of Planets". Great insights into #astrochemistry and it's importance in the formation of planets as well as into the origin of the CHNOPS atoms.
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Embarquez en thèse avec nous dès la rentrée 2025-2025 pour décrypter la composition de la comète 67P !
#thèse #astrochimie #exobiologieEmbark on a thesis with us from the start of the 2025-2025 academic year to decipher the composition of comet 67P!
#PhD #astrochemistry #astrobiology -
Organic molecules of unprecedented size discovered on Mars
These long carbon chains, containing up to 12 consecutive carbon atoms, could exhibit features similar to the fatty acids produced on Earth by biological activity.
☑️ https://www.cnrs.fr/en/press/organic-molecules-unprecedented-size-discovered-mars
☑️ https://www.pnas.org/doi/abs/10.1073/pnas.2420580122#Mars #Curiosity #Astrochemistry #chemistry #Life #astrobiology #science #STEM #news #molecules
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Curiosity rover detects long-chain carbon molecules on Mars
Fatty acid byproducts could be the remains of microbes - or not...
https://www.science.org/content/article/curiosity-rover-detects-long-chain-carbon-molecules-mars
#Mars #Curiosity #Astrochemistry #chemistry #Life #astrobiology #science #STEM #news #molecules
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6-JUN-2024
Planet-forming disks around very low-mass stars are different
JWST discovers a large variety of carbon-rich gases that serve as ingredients for future planets around a very low-mass starhttps://www.eurekalert.org/news-releases/1046955
#science #astrobiology #stars #astrochemistry #exoplanets -
Astrochemistry: The Physical Chemistry of the Universe, Second Edition by Andrew M. Shaw
This core textbook now includes more detailed information on the kinetic modelling of chemistry in the interstellar medium, extending the same principles of physical chemistry to meteor ablation and finally atmospheres and oceans.
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Organic Molecules Formed in Oort Cloud Comets: Ingredients for Early Life? https://researchinenglish.com/article/2024.0/organic-molecules-formed-in-oort-cloud-may-shed-zeaan4rl
#space #comet #coma #life #science #research #astrochemistry #astrophysics #chemistry #oortcloud #news
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Cosmic dust (Planetary science 🪐)
Cosmic dust – also called extraterrestrial dust, space dust, or star dust – is dust that occurs in outer space or has fallen onto Earth. Most cosmic dust particles measure between a few molecules and 0.1 mm, such as micrometeoroids. Larger particles are called meteoroids. Cosmic dust can be further distinguished b...
https://en.wikipedia.org/wiki/Cosmic_dust
#CosmicDust #Astrobiology #Astrochemistry #PlanetaryScience #GalacticAstronomy #ExtragalacticAstronomy
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Relaying this from the ALMA Observatory account "over there”…
A Surprise Chemical Find by ALMA May Help Detect and Confirm Protoplanets. Located in the constellation Sagittarius, the young star HD 169142 is host to a giant protoplanet embedded within its dusty, gas-rich protoplanetary disk.
#ALMA #AlmaObservatory #AstroChemistry #ExoPlanets #ProtoPlanets #HD169142
Nitter link: https://nitter.net/almaobs/status/1673692721125490688