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Astrochem Coffee
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Official account of the Astrochem Coffee Podcast! We'll post here with podcast-related announcements, as well as astrochemistry-relevant literature, job openings, prizes, conferences, etc throughout the month between episodes.

coffee.astrochem.net
Identification of solid N2O in interstellar ices using open JWST data

Karteyeva et al. arXiv (A&A)

arxiv.org/abs/2601.03705
Identification of solid N2O in interstellar ices using open JWST data
Context. There are only six molecules containing N-O bond that are detected in gaseous phase in interstellar medium. One of those is nitrous oxide (N2O), which was searched for but not found in solid…
arxiv.org
January 9, 2026 at 2:45 AM
Directed Gas-Phase Formation of the 1-Cyanovinyl Radical (H2CCCN, X2A′) in the Interstellar Medium

Goettl et al. JPCA

pubs.acs.org/doi/10.1021/...
Directed Gas-Phase Formation of the 1-Cyanovinyl Radical (H2CCCN, X2A′) in the Interstellar Medium
The formation pathways to nitrogen-containing molecules and radicals are crucial to the understanding of the carbon–nitrogen chemistry in interstellar and atmospheric environments. While over 65…
pubs.acs.org
January 9, 2026 at 12:34 AM
MAGellanic Outflow and chemistry Survey (MAGOS): Hot cores in the LMC

Shimonishi et al. arXiv (ApJS)

arxiv.org/abs/2512.15983
MAGellanic Outflow and chemistry Survey (MAGOS): Hot cores in the LMC
The Large Magellanic Cloud (LMC) provides a key laboratory for exploring the diversity of star formation and interstellar chemistry under subsolar metallicity conditions. We present the results of a…
arxiv.org
December 20, 2025 at 12:40 AM
New Neutral–Neutral Pathways in the Chemistry of Silicon- and Sulfur-bearing Molecules in the Cold Interstellar Medium

Costa et al. ApJ

iopscience.iop.org/article/10.3...
December 19, 2025 at 2:45 AM
JWST Reveals Carbon-rich Chemistry in a Transitional Disk

Volz et al. AJ

iopscience.iop.org/article/10.3...
December 19, 2025 at 12:34 AM
Recombination of HCO+ ions with electrons in the temperature range of 80–200 K

M. Kassayová et al. JCP

pubs.aip.org/aip/jcp/arti...
December 18, 2025 at 4:07 PM
Faculty position in Laboratory Astrophysics at Leiden Observatory

careers.universiteitleiden.nl/job/Leiden-F...
Faculty position in Laboratory Astrophysics at Leiden Observatory
Faculty position in Laboratory Astrophysics at Leiden Observatory
careers.universiteitleiden.nl
December 17, 2025 at 2:07 PM
First mapping of prebiotic molecule CH2NH in a pre-stellar core

Lin et al. arXiv (ApJL)

arxiv.org/abs/2512.12396
First mapping of prebiotic molecule CH2NH in a pre-stellar core
We present the first spatially resolved map of methanimine CH2NH in the prestellar core L1544 using the IRAM 30m telescope. The 2$_{0,2}$-1$_{0,1}$ line at 127 GHz was mapped with 20" resolution…
arxiv.org
December 16, 2025 at 3:03 PM
Laboratory rotational spectroscopy and interstellar search for the protein precursor 4-oxobutanenitrile (HCOCH2CH2CN)

Rivilla et al. arXiv (MNRAS)

arxiv.org/abs/2512.11500
Laboratory rotational spectroscopy and interstellar search for the protein precursor 4-oxobutanenitrile (HCOCH$_2$CH$_2$CN)
Understanding the presence and distribution of prebiotic precursors in the interstellar medium (ISM) is key to tracing the chemical origins of life. Among them, 4-oxobutanenitrile (\ch{HCOCH2CH2CN})…
arxiv.org
December 15, 2025 at 5:07 PM
Our episode for November is up! Gabi Wenzel co-hosts, and we have interviews with Alana Nisperos and Elettra Piacentino. In the percolator, we take a look at just when exactly Astrochemistry as a field was born. The first time it was used in the press was earlier than you think (yes, clickbait)!
Astrochem Coffee
Catch our latest episode directly below and follow us on Bluesky for article updates, job postings, announcements, and more in between each episode! Find other ways to listen, get all the papers and i...
coffee.astrochem.net
December 14, 2025 at 2:13 PM
Isotopomer-Specific Carbon Isotope Ratio of Complex Organic Molecules in Star-Forming Cores

Ichimura et al. arXiv

arxiv.org/abs/2512.10516
Isotopomer-Specific Carbon Isotope Ratio of Complex Organic Molecules in Star-Forming Cores
Recent high-resolution and sensitivity ALMA observations have unveiled the carbon isotope ratios ($^{12}$C/$^{13}$C) of Complex Organic Molecules (COMs) in a low-mass protostellar source. To…
arxiv.org
December 13, 2025 at 2:53 AM
High-energy astrochemistry in the molecular interstellar medium

Gaches et al. arXiv (ACS Earth & Space Chemistry)

arxiv.org/abs/2512.10060
High-energy astrochemistry in the molecular interstellar medium
In the past decade, there has been a significant shift in astrochemistry with a renewed focus on the role of non-thermal processes on the molecular interstellar medium, in particular energetic…
arxiv.org
December 13, 2025 at 12:40 AM
High deuteration of methanol in L1544

Spezzano et al. arXiv (ACS Earth & Space Chemistry)

arxiv.org/abs/2512.09110
High deuteration of methanol in L1544
Isotopic fractionation is a very powerful tool to follow the evolution of material from one stage to the next in the star-formation process. Pre-stellar cores exhibit some of the highest levels of…
arxiv.org
December 12, 2025 at 12:34 AM
Photochemistry of interstellar ice forming Complex Organic Molecules

Muñoz Caro et al. arXiv

arxiv.org/abs/2512.08413
Photochemistry of interstellar ice forming Complex Organic Molecules
Astrochemistry is a well-established multidisciplinary field devoted to study molecules in space. While most astrochemists are oriented to observe molecules in the gas phase and reproduce their…
arxiv.org
December 10, 2025 at 2:07 PM
Rotational Spectra and Search for Aromatic Imines: 9-Iminofluorene and Benzophenone imine

Ren et al. arXiv (ApJ)

arxiv.org/abs/2512.06579
Rotational Spectra and Search for Aromatic Imines: 9-Iminofluorene and Benzophenone imine
Interstellar detections of several cyano derivatives of large polycyclic aromatic hydrocarbons (PAHs) have now been achieved, enabled by accurate laboratory measurements of their microwave rotational…
arxiv.org
December 9, 2025 at 3:03 PM
Oxygen Isotope Constraints on the Importance of Photochemical Processing in Protoplanetary Disks

Ciesla et al arXiv (AJ)

arxiv.org/abs/2512.04944
Oxygen Isotope Constraints on the Importance of Photochemical Processing in Protoplanetary Disks
Observations have revealed evidence of photochemical processing in protoplanetary disks. This processing occurs in the photon dominated layer, the optically thin regions of the disk high above the…
arxiv.org
December 6, 2025 at 12:40 AM
High-resolution spectroscopy of [H,C,N]+ : II. Ground state rotational spectrum of HCN+ (X2Π)

de Silva et al. PCCP

pubs.rsc.org/en/Content/A...
High-resolution spectroscopy of [H,C,N]+ : II. Ground state rotational spectrum of HCN+ (X2Π)
The rotational spectrum of HCN2 has been measured between 270 and 520 GHz in a cryogenic ion trap instrument employing a double resonance vibrational-rotational scheme based on leak-out spectroscopy.…
pubs.rsc.org
December 4, 2025 at 4:07 PM
The Rotational Spectrum of 1-cyanocyclopentene and Its Search towards TMC-1

Mato et al. ApJ

iopscience.iop.org/article/10.3...
December 3, 2025 at 2:07 PM
The chemical diversity of giant-planet nurseries as revealed by ALMA

Booth et al. arXiv (AJ)

arxiv.org/abs/2512.01731
The chemical diversity of giant-planet nurseries as revealed by ALMA
With the giant exoplanet occurrence rate peaking around stars of 1.5-2 solar masses, there is strong motivation to characterize the disks that set their formation conditions. Observations with the…
arxiv.org
December 3, 2025 at 12:32 AM
Laboratory Detection and Rotational Spectroscopy of trans-HNSO: Implications for Astronomical Observations

Lattanzi et al. arXiv (Frontiers)

arxiv.org/abs/2511.22548
Laboratory Detection and Rotational Spectroscopy of $trans$-HNSO: Implications for Astronomical Observations
Sulfur-bearing molecules are central to interstellar chemistry, yet their observed abundances in the gas phase remain far below cosmic expectations in dense interstellar regions. Mixed N-S-O species…
arxiv.org
December 2, 2025 at 11:50 PM
A Detection of Sulfur-Bearing Cyclic Hydrocarbons in Space

Araki et al. arXiv

arxiv.org/abs/2511.23299
A Detection of Sulfur-Bearing Cyclic Hydrocarbons in Space
Molecules harbouring sulfur are thought to have played a key role in the biological processes of life on Earth. We report the first astronomical detection of a six-membered sulfur-bearing cyclic…
arxiv.org
December 2, 2025 at 3:03 PM
Discovery of linear propadienone: Study of the chemistry of linear and cyclic H2C3O and H2C3S in TMC-1

Esplugues et al. arXiv
Discovery of linear propadienone: Study of the chemistry of linear and cyclic H$_2$C$_3$O and H$_2$C$_3$S in TMC-1
We report the first detection in space of propadienone, the linear isomer (l-H$_2$C$_3$O) of cyclopropenone (c-H$_2$C$_3$O). We also report the first detection of the isotopologue c-H$_2$$^{13}$CCCO,…
arxiv.org
November 27, 2025 at 1:42 AM
Chemical evolution in high-mass star-forming regions

Fontani et al. arXiv (Frontiers)

arxiv.org/abs/2511.14326
Chemical evolution in high-mass star-forming regions
Growing evidence shows that most stars in the Milky Way, including the Sun, are born in high-mass star-forming regions, but due to both observational and theoretical challenges, our understanding of…
arxiv.org
November 24, 2025 at 11:49 PM
Detection of six isotopologues of CH3CCCCH in TMC-1 with the QUIJOTE line survey

Cabezas et al. A&A

www.aanda.org/articles/aa/...
November 24, 2025 at 10:14 PM
Observations of sulfuretted species in HL Tau

Rivière-Marichalar in A&A

www.aanda.org/articles/aa/...
November 24, 2025 at 5:07 PM