Results 11 to 20 of about 31,252 (251)

Organic Chemistry in the H2-bearing, CO-rich Interstellar Ice Layer at Temperatures Relevant to Dense Cloud Interiors

open access: greenThe Astrophysical Journal
Ice chemistry in the dense, cold interstellar medium (ISM) is probably responsible for the formation of interstellar complex organic molecules (COMs). Recent laboratory experiments performed at T ∼ 4 K have shown that irradiation of CO:N _2 ice samples ...
Rafael Martín-Doménech   +3 more
doaj   +2 more sources

Investigating Enols Chemistry in the Interstellar Medium: Rotational Spectroscopy and Interstellar Search of (E)-1-Propenol

open access: goldThe Astrophysical Journal
Enols represent highly reactive intermediates toward the synthesis of complex organic molecules in the interstellar medium (ISM) and serve as key tracers of nonequilibrium chemistry driven by Galactic cosmic rays.
Michela Nonne   +10 more
doaj   +2 more sources

Surface diffusion of carbon atoms as a driver of interstellar organic chemistry [PDF]

open access: greenNature Astronomy, 2023
Masashi Tsuge   +2 more
exaly   +2 more sources

The chemistry of interstellar HnO+ beyond the Galaxy [PDF]

open access: greenAIP Conference Proceedings, 2010
The astrochemistry of the HnO+ (n=1..3) ions is important as the main gas-phase formation route for water, and as tracer of the interstellar ionization rate by cosmic rays and other processes. While interstellar H3O+ has been known since the early 1990's, interstellar OH+ and H2O+ have only recently been detected using the Herschel space observatory ...
F. van der Tak
openalex   +5 more sources

Hydrogen ejection from hydrocarbons: Characterization and relevance in soot formation and interstellar chemistry [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America
Josie Hendrix   +2 more
exaly   +2 more sources

Gas-phase Chemistry in the Interstellar Medium: The Role of Laboratory Astrochemistry

open access: yesFrontiers in Astronomy and Space Sciences, 2022
“Who” and how? In this simple question the complexity of the interstellar chemistry is encapsulated. “Who” refers to what molecules are present in the interstellar medium (ISM) and “how” to the mechanisms that led to their formation.
Cristina Puzzarini
doaj   +1 more source

Molecular Precursors of the RNA-World in Space: New Nitriles in the G+0.693−0.027 Molecular Cloud

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Nitriles play a key role as molecular precursors in prebiotic experiments based on the RNA-world scenario for the origin of life. These chemical compounds could have been partially delivered to the young Earth from extraterrestrial objects, stressing the
Víctor M. Rivilla   +15 more
doaj   +1 more source

Dust evolution, a global view I. Nanoparticles, nascence, nitrogen and natural selection … joining the dots [PDF]

open access: yesRoyal Society Open Science, 2016
The role and importance of nanoparticles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), focusing on their active surface chemistry, the effects of ...
A. P. Jones
doaj   +1 more source

Dust evolution, a global view: III. Core/mantle grains, organic nano-globules, comets and surface chemistry [PDF]

open access: yesRoyal Society Open Science, 2016
Within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), this work explores the surface processes and chemistry relating to core/mantle interstellar and cometary grain structures and their influence on the nature ...
A. P. Jones
doaj   +1 more source

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