Results 21 to 30 of about 2,145,468 (291)

Interstellar Molecule Formation. [PDF]

open access: yesThe Astronomical Journal, 1966
Interstellar molecule formation by chemical exchange reactions between interstellar gas atoms and atoms chemically bound to interstellar ...
T. P. Stecher, D. A. Williams
openaire   +2 more sources

Photochemistry and Astrochemistry: Photochemical Pathways to Interstellar Complex Organic Molecules. [PDF]

open access: yesChemical Reviews, 2016
The interstellar medium is characterized by a rich and diverse chemistry. Many of its complex organic molecules are proposed to form through radical chemistry in icy grain mantles. Radicals form readily when interstellar ices (composed of water and other
K. Öberg
semanticscholar   +2 more sources

Formation of Interstellar Complex Organic Molecules on Water-rich Ices Triggered by Atomic Carbon Freezing

open access: yesThe Astrophysical Journal, 2023
The reactivity of interstellar carbon atoms (C) on water-dominated ices is one of the possible ways to form interstellar complex organic molecules (iCOMs). In this work, we report a quantum chemical study of the coupling reaction of C ( ^3 P) with an icy
Stefano Ferrero   +4 more
doaj   +1 more source

Early Planet Formation in Embedded Disks (eDisk). III. A First High-resolution View of Submillimeter Continuum and Molecular Line Emission toward the Class 0 Protostar L1527 IRS

open access: yesThe Astrophysical Journal, 2023
Studying the physical and chemical conditions of young embedded disks is crucial to constrain the initial conditions for planet formation. Here we present Atacama Large Millimeter/submillimeter Array observations of dust continuum at ∼0.″06 (8 au ...
Merel L. R. van ’t Hoff   +27 more
doaj   +1 more source

Theoretical Water Binding Energy Distribution and Snowline in Protoplanetary Disks

open access: yesThe Astrophysical Journal, 2023
Water is one of the most important and abundant molecules in star-forming regions. In protoplanetary disks, where planets and comets form, H _2 O is in a gas or solid form, depending on the dust temperature, i.e., the distance from the center and its ...
Lorenzo Tinacci   +5 more
doaj   +1 more source

2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
To date, 204 individual molecular species, comprised of 16 different elements, have been detected in the interstellar and circumstellar medium by astronomical observations.
B. McGuire
semanticscholar   +1 more source

The census of interstellar complex organic molecules in the Class I hot corino of SVS13-A [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We present the first census of the interstellar Complex Organic Molecules (iCOMs) in the low-mass Class I protostar SVS13-A, obtained by analysing data from the IRAM-30m Large Project ASAI (Astrochemical Surveys At IRAM).
E. Bianchi   +15 more
semanticscholar   +1 more source

The formation of peptide-like molecules on interstellar dust grains [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Molecules with an amide functional group resemble peptide bonds, the molecular bridges that connect amino acids, and may thus be relevant in processes that lead to the formation of life.
N. Ligterink   +6 more
semanticscholar   +1 more source

Interstellar Molecules - Theory [PDF]

open access: yesSymposium - International Astronomical Union, 1974
A number of possible mechanisms for the formation of molecules in the interstellar medium are discussed. Plausible suggestions have been made for the production of most of the known diatomics, but there is little understanding of polyatomics so far.
openaire   +1 more source

Hydrogen transfer reactions of interstellar complex organic molecules [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Radical recombination has been proposed to lead to the formation of complex organic molecules (COMs) in CO-rich ices in the early stages of star formation.
S. Álvarez-Barcia   +3 more
semanticscholar   +1 more source

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