Results 1 to 10 of about 35,391 (195)

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

Presumed Detection of C5 Molecule in the Interstellar Medium

open access: yesThe Astrophysical Journal, 2022
The paper suggests the presence of the carbon chain C _5 molecule in translucent, interstellar H i clouds. This species, the only five atom interstellar molecule, observable in dark, translucent clouds, seems to be observable in reasonably dense clouds ...
J. Krełowski, R. Hakalla, W. Szajna
doaj   +1 more source

Interstellar Molecules [PDF]

open access: yesSymposium - International Astronomical Union, 1970
The observation of molecules in the interstellar medium offers an excellent oppor- tunity to specify the physical conditions present there. This must be done through the combined use of theory and observation. In the last few years the advancement in this area has accelerated spectacularly.
Theodore P. Stecher, E. E. Salpeter
openaire   +2 more sources

Formation of Complex Organic Molecules on Interstellar CO Ices? Insights from Computational Chemistry Simulations

open access: yesThe Astrophysical Journal, 2023
The carbon ( ^3 P) atom is a reactive species that, according to laboratory experiments and theoretical calculations, condensates with interstellar ice components.
Stefano Ferrero   +4 more
doaj   +1 more source

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

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

Photoabsorption and photodissociation of molecules important in the interstellar medium [PDF]

open access: yes
The photo absorption, photo dissociation, and fluorescence cross sections of interstellar molecules and radicals were measured in the vacuum ultraviolet region. These quantitative optical data are useful for understanding of the formation and destruction
Lee, Long C., Suto, Masako
core   +13 more sources

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

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