Results 21 to 30 of about 2,296,812 (225)

Are molecule-covered dust grains efficient catalysts of H2 formation in the cold ISM? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
International ...
Gavilan, L., Lemaire, J., Vidali, G.
openaire   +4 more sources

HyGAL: Characterizing the Galactic ISM with observations of hydrides and other small molecules

open access: yesAstronomy & Astrophysics, 2023
As a complement to the HyGAL Stratospheric Observatory for Infrared Astronomy Legacy Program, we report the results of a groundbased absorption line survey of simple molecules in diffuse and translucent Galactic clouds. Using the Institut de Radioastronomie Millimétrique (IRAM) 30 m telescope, we surveyed molecular lines in the 2 mm and 3 mm wavelength
Kim, W-J   +13 more
openaire   +5 more sources

Infrared spectra of complex organic molecules in astronomically relevant ice mixtures. V. Methyl cyanide (acetonitrile) [PDF]

open access: yesAstronomy & Astrophysics, 2022
The increasing sensitivity and resolution of ground-based telescopes have enabled the detection of gas-phase complex organic molecules (COMs) across a variety of environments.
M. Rachid, W. Rocha, H. Linnartz
semanticscholar   +1 more source

Benzonitrile as a Proxy for Benzene in the Cold ISM: Low-temperature Rate Coefficients for CN + C6H6 [PDF]

open access: yesAstrophysical Journal, 2020
The low-temperature reaction between CN and benzene (C6H6) is of significant interest in the astrochemical community due to the recent detection of benzonitrile, the first aromatic molecule identified in the interstellar medium (ISM) using radio ...
I. Cooke   +3 more
semanticscholar   +1 more source

Expanding the submillimeter wave spectroscopy and astronomical search for thioacetamide (CH3CSNH2) in the ISM [PDF]

open access: yesAstronomy & Astrophysics, 2021
Context. One of the biggest unsolved mysteries of modern astrochemistry is understanding chemical formation pathways in the interstellar medium (ISM) and circumstellar environments.
A. Remijan   +14 more
semanticscholar   +1 more source

Spectral Signatures of Hydrogen Thioperoxide (HOSH) and Hydrogen Persulfide (HSSH): Possible Molecular Sulfur Sinks in the Dense ISM

open access: yesMolecules, 2022
For decades, sulfur has remained underdetected in molecular form within the dense interstellar medium (ISM), and somewhere a molecular sulfur sink exists where it may be hiding. With the discovery of hydrogen peroxide (HOOH) in the ISM in 2011, a natural
C. Z. Palmer   +2 more
semanticscholar   +1 more source

Supernova induced processing of interstellar dust: impact of ISM gas density and gas turbulence [PDF]

open access: yes, 2021
Quantifying the efficiency of dust destruction in the interstellar medium (ISM) due to supernovae (SNe) is crucial for the understanding of galactic dust evolution.
F. Kirchschlager, L. Mattsson, F. Gent
semanticscholar   +1 more source

Gas-Phase vs. Grain-Surface Formation of Interstellar Complex Organic Molecules: A Comprehensive Quantum-Chemical Study

open access: yesInternational Journal of Molecular Sciences, 2023
Several organic chemical compounds (the so-called interstellar complex organic molecules, iCOMs) have been identified in the interstellar medium (ISM). Examples of iCOMs are formamide (HCONH2), acetaldehyde (CH3CHO), methyl formate (CH3OCHO), or formic ...
Berta Martínez-Bachs, A. Rimola
semanticscholar   +1 more source

Searches for bridged bicyclic molecules in space—norbornadiene and its cyano derivatives

open access: yesFaraday discussions, 2023
The norbornadiene (NBD) molecule, C7H8, owes its fame to its remarkable photoswitching properties that are promising for molecular solar-thermal energy storage systems.
M. Martin‐Drumel   +6 more
semanticscholar   +1 more source

Binding Energies of Interstellar Molecules on Crystalline and Amorphous Models of Water Ice by Ab Initio Calculations [PDF]

open access: yesAstrophysical Journal, 2020
In the denser and colder (≤20 K) regions of the interstellar medium (ISM), near-infrared observations have revealed the presence of submicron-sized dust grains covered by several layers of H2O-dominated ices and “dirtied” by the presence of other ...
S. Ferrero   +5 more
semanticscholar   +1 more source

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