Results 21 to 30 of about 2,262 (175)
Catalytic Role of Refractory Interstellar Grain Analogs on H2 Formation
Frontiers in Astronomy and Space Sciences, 2021 Refractory dust grains have an important role to play in the chemistry of star and planet-forming regions. Their surfaces interact with interstellar gas and act as a catalyst for the formation of simple and complex molecules in space.
Tushar Suhasaria, Vito Mennella
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Proceedings of the National Academy of Sciences, 2006 In the past half century, radioastronomy has changed our perception and understanding of the universe. In this issue of PNAS, the molecular chemistry directly observed within the galaxy is discussed. For the most part, the description of the molecular transformations requires specific kinetic schemes rather than chemical thermodynamics.
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Chemical Kinetics Simulations of Ice Chemistry on Porous Versus Non-Porous Dust Grains
Frontiers in Astronomy and Space Sciences, 2021 The degree of porosity in interstellar dust-grain material is poorly defined, although recent work has suggested that the grains could be highly porous.
Drew A. Christianson +2 more
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Looking for the bricks of the life in the interstellar medium: The fascinating world of astrochemistry [PDF]
EPJ Web of Conferences, 2020 The discovery in the interstellar medium of molecules showing a certain degree of complexity, and in particular those with a prebiotic character, has attracted great interest.
Barone Vincenzo, Puzzarini Cristina
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Shaken or Stirred: The Diffuse Interstellar Medium with Exceptionally High SiO Abundance
The Astrophysical Journal, 2023 Interstellar shocks, a key element of stellar feedback processes, shape the structure of the interstellar medium (ISM) and are essential for the chemistry, thermodynamics, and kinematics of interstellar gas.
Daniel R. Rybarczyk +2 more
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Energy Redistribution Following CO2 Formation on Cold Amorphous Solid Water
Frontiers in Chemistry, 2022 The formation of molecules in and on amorphous solid water (ASW) as it occurs in interstellar space releases appreciable amounts of energy that need to be dissipated to the environment.
Meenu Upadhyay, Markus Meuwly
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Benchmark Studies on the Isomerization Enthalpies for Interstellar Molecular Species
Journal of Nigerian Society of Physical Sciences, 2023 With the well-established correlation between the relative stabilities of isomers and their interstellar abundances coupled with the prevalence of isomeric species among the interstellar molecular species, isomerization remains a plausible formation ...
Emmanuel Etim (PhD)
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Frontiers in Astronomy and Space Sciences, 2021 Stellar systems are often formed through the collapse of dense molecular clouds which, in turn, return copious amounts of atomic and molecular material to the interstellar medium.
Duncan V. Mifsud +6 more
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Molecules, 2022 Benzene is the simplest building block of polycyclic aromatic hydrocarbons and has previously been found in the interstellar medium. Several barrierless reaction mechanisms for interstellar benzene formation that may operate under low-temperature and low-
Tatsuhiro Murakami, Toshiyuki Takayanagi
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Unraveling sulfur chemistry in interstellar carbon oxide ices
Nature Communications, 2022 The authors report photolytic H atom transfer reactions of HOSO• in astronomical CO & CO2 ices, forming reactive acyl radicals & molecular complexes with SO & SO2.
Xiaolong Li +7 more
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