Coffee Chat

Brett and Sean Dougherty

The Grab & GO

1. Correlation between formaldehyde and methanol in prestellar cores

Punanova et al. arXiv (MNRAS)
https://arxiv.org/abs/2502.00538  

2. Formation of C5H6 isomers: A combination of experimental and computational investigation

Zhang et al. PCCP
https://pubs.rsc.org/en/Content/ArticleLanding/2024/CP/D4CP03728F  

3. Establishing an Accurate Infrared Band Strength for the Cyanate Ion in Interstellar Ices

Gerakines et al. MNRAS
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf192/7998943?rss=1  

4. Tracking the Chemical Evolution of Hydrocarbons Through Carbon Grain Supply in Protoplanetary Disks

Raul et al. arXiv
https://arxiv.org/abs/2502.01765    

5. Laboratory Measurement of CH317OH Transitions in the Frequency Range from 216 to 264 GHz for Astronomical Application

Tamanai et al. ApJ
https://iopscience.iop.org/article/10.3847/1538-4357/ad9b16  

6. Characterization of H2O:N2 ice under bombardment by cosmic rays: Part I - Reaction rates and chemical equilibrium

Queiroz et al. MNRAS
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf225/8005408?rss=1  

7. ALMA reveals thermal and non-thermal desorption of methanol ice in the HD 100546 protoplanetary disk

Evans et al. arXiv
https://arxiv.org/abs/2502.04957  

8. Emission from multiple molecular isotopologues in a high-inclination protoplanetary disk

Salyk et al. arXiv (AJ)
https://arxiv.org/abs/2502.05061   

9. Ly-α processing of solid-state Ethanolamine: Potential Precursors to Sugar and Peptide Derivatives

Suhasaria et al. arXiv
https://arxiv.org/abs/2502.07970   

10. Termination of bottom-up interstellar aromatic ring formation at C6H5+

Kocheril et al. arXiv
https://arxiv.org/abs/2502.17849  

Single-Origin Brew

Brett chats with Karina Sogomonyan

• Karina's Paper on Collisional Excitation of Vinyl Cyanide: https://pubs.acs.org/doi/10.1021/acsearthspacechem.4c00387  

Barista Bootcamp

• D/H Ratios and Temperature

Chalkboard

• Upcoming Meetings

  • There will be a focused Astrochemistry Mini Symposium at this year’s International Symposium on Molecular Spectroscopy.  With the forthcoming explosion in observational data driven by the bandwidth upgrades from the ALMA Wideband Sensitivity Upgrade (WSU) and ngVLA in particular, it is more important than ever that the laboratory, computational, and observational communities come together. This mini-symposium aims to get all areas of astrochemistry talking to best understand the landscape of needs so we can coordinate our limited resources to maximum effect in the face of this new era.
    
    ISMS has a decades-long history of a strong astrochemistry program each year.  ISMS is known as an extremely collegial and relaxed environment with a strong emphasis on informal discussion and collaboration as well as being a welcoming and accessible environment for students to give their first talks.  Registration and housing costs for students are extremely economical.
    
    Abstract submission is  closes March 8th, but late abstracts are sometimes accepted.
    
    isms.illinois.edu  

  • The 3rd Joint Scientific Meeting of the COST Action NanoSpace  will take place 13-15 May 2025, at Kaunas University of Technology, Kaunas, Lithuania.  The event will bring together leading scientists, researchers, and innovators to explore the engaging role of carbon molecular nanostructures in space. The 3rd Action Joint Meeting will be focussed on the fundamental and applied research of diverse carbon molecular nanostructures (fullerenes, graphene, carbon nanotubes, and their derivatives) in the context of space science and exploration. The meeting will attack key questions on the formation, properties, and potential applications of these nanocarbon materials under space conditions. Another key nanocarbon topics for discussion will include:

    • i) Formation and Characterization;

    • ii) Space Radiation and Stability;

    • iii) Astrobiology and Planetary Science;

    • iv) Applications in Space Technology; and

    • v) Laboratory Studies.

The deadline for registration and abstract submission is 5th April 2025.

https://nanospace.ktu.edu/
  

• • Astrochemistry and Astrobiology beyond the Second Period, PacifiChem 2025, 15-20 December 2025, Honolulu, HI, USA
    
    The formation of molecules in extraterrestrial environments has fascinated scientists since the pioneering detection of CH, CH+, and CN. We now know of some 300 molecules in deep space ranging in complexity from diatomics such as molecular hydrogen (H2) to polyatomics like the sugar-related molecule glycolaldehyde (HOCH2CHO) and fullerenes (C60, C70). Whereas an understanding of the formation of carbon, oxygen, nitrogen, and hydrogen (CHON) bearing organics in these extreme environments is beginning to emerge, the origin of molecules carrying third row atoms silicon, phosphorus, and sulfur have remained unanswered or contentious. In sear­ching for answers to this question, we also obtain crucial information relevant to the chemistry of our immediate environment: the rules of chemistry, after all, are uni­versal, even when the conditions are very different.
    
    This symposium focuses on the interdisciplinary fields of astrochemistry and astrobiology, bringing together speakers from laboratory astrochemistry (dynamics, kinetics, spectroscopy), astrochemical modeling (physicists), theoretical astrochemistry (computational chemists), and observational astrochemistry (astronomers). By focus­sing on the interplay between observational data, kinetic modeling, electronic structure calculations, along with gas phase and ice laboratory studies, we seek to evaluate the generalized concepts on the formation of astrochemically im­por­tant molecules carrying silicon (Si), phosphorus (P), and sulfur (S) – among them astrobiologically important molecules such as alkylsulfonic and alkylphosphonic acids. Through the exploration of the current boundaries of astrochemical knowledge, we can more effectively design new laboratory experiments and guide observations in space to resolve key unanswered aspects of molecular synthesis in extraterrestrial space.  The symposium is very timely as observational capabilities have reached the sensitivity and resolution to achieve not only the mere detection, but also the spatial distribution of molecules, while the lessons learned from the formation of CHON organics will direct the search for the exotic formation routes of the isovalent silicon, sulfur, and phosphorus counterparts.
    
    Abstract submission closes in April  
    
    https://pacifichem.org/

  • There is an astrochemistry special session at this summer’s meeting of European Astronomical Society.  Astrochemical Horizons: From Galaxies to Comets.
    
    It seems abstract submission closed March 3rd, but registration will continue for some time yet.
    
    https://eas.unige.ch/EAS2025/session.jsp?id=SS8