📄 A KInetic Database for Astrochemistry (KIDA)
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Wakelam, V. et al. (2012) · The Astrophysical Journal Supplement Series
Reads: 460 · Citations: 484
DOI: 10.1088/0067-0049/199/1/21
🔗 https://ui.adsabs.harvard.edu/abs/2012ApJS..199...21W/abstract
#Astronomy #Astrophysics #PlanetaryScience #Astrochemistry #AstronomicalDatabasesMiscellaneous
We present a novel chemical database for gas-phase astrochemistry. Named the KInetic Database for Astrochemistry (KIDA), this database consists of gas-phase reactions with rate coefficients and uncertainties that will be vetted to the greatest extent possible. Submissions of measured and calculated rate coefficients are welcome, and will be studied by experts before inclusion into the database. Besides providing kinetic information for the interstellar medium, KIDA is planned to contain such data for planetary atmospheres and for circumstellar envelopes. Each year, a subset of the reactions in the database (kida.uva) will be provided as a network for the simulation of the chemistry of dense interstellar clouds with temperatures between 10 K and 300 K. We also provide a code, named Nahoon, to study the time-dependent gas-phase chemistry of zero-dimensional and one-dimensional interstellar sources.
📄 The UMIST database for astrochemistry 2012
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McElroy, D. et al. (2013) · Astronomy and Astrophysics
Reads: 84 · Citations: 833
DOI: 10.1051/0004-6361/201220465
🔗 https://ui.adsabs.harvard.edu/abs/2013A&A...550A..36M/abstract
#Astronomy #Astrophysics #Astrochemistry #MolecularData #MolecularProcesses
We present the fifth release of the UMIST Database for Astrochemistry (UDfA). The new reaction network contains 6173 gas-phase reactions, involving 467 species, 47 of which are new to this release. We have updated rate coefficients across all reaction types. We have included 1171 new anion reactions and updated and reviewed all photorates. In addition to the usual reaction network, we also now include, for download, state-specific deuterated rate coefficients, deuterium exchange reactions and a list of surface binding energies for many neutral species. Where possible, we have referenced the original source of all new and existing data. We have tested the main reaction network using a dark cloud model and a carbon-rich circumstellar envelope model. We present and briefly discuss the results of these models. <P />All codes, along with reaction networks and data files, are accessible at <A href="http://www.udfa.net">http://www.udfa.net</A>.
This is neat. The more we learn about the chemistry of the early earth and the early solar system the more it appears to be a stew of organic compounds ripe for forming life.
On ancient Earth, sulfur biomolecules could have formed without life
https://cen.acs.org/physical-chemistry/astrochemistry/ancient-Earth-sulfur-biomolecules-formed/103/web/2025/12
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]
#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
Ethyl Formate, the chemical responsible for the smell of raspberries and rum, is present in Sagittarius B2 (Sgr B2), a massive star-forming cloud in the Milky Way's center. Detection: Radio telescopes (IRAM 30-meter dish, Spain) in 2009. #FACTOVATE #GalaxySmells #RaspberriesAndRum #EthylFormate #Astrochemistry
https://factovate.com/galaxy-tastes-like-raspberries-and-rum-chemical-name
galaxy tastes like raspberries and rum chemical name revealed: it's Ethyl Formate! Discover the shocking truth behind the cosmic rum smell, its location in the Milky Way, and the deadly chemicals present.
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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