Results 11 to 20 of about 1,176,456 (219)

Considerations regarding interstellar molecules [PDF]

open access: yesThe Astrophysical Journal, 1937
An attempt has been made to compute the numbers of certain molecules in interstellar space. The results obtained are unfavorable to Saha's identification of one of Merrill's interstellar lines with Na2.
Swings, Polydore, Rosenfeld, L.
core   +3 more sources

Interstellar Molecules: Their Laboratory and Interstellar Habitat [PDF]

open access: yes, 2011
This book deals with the astrophysics and spectroscopy of the interstellar molecules. In the introduction, overview and history of interstellar observations are described in order to help understanding how the modern astrophysics and molecular ...
Yamada, Koichi M T, Winnewisser, Gisbert
core   +2 more sources

Organic Molecules in Interstellar Space: Latest Advances

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Although first considered as too diluted for the formation of molecules in-situ and too harsh an environment for their survival, the interstellar medium has turned out to host a rich palette of molecular species: to date, 256 species, not counting ...
Michel Guélin, Jose Cernicharo
doaj   +3 more sources

Observational astrochemistry: The quest for interstellar molecules

open access: yesEPJ Web of Conferences, 2012
Over 160 molecular species, not counting isotopologues, have been identified in circumstellar envelopes and interstellar clouds. These species have revealed a wealth of familiar, as much as exotic molecules and in complex organic (and silicon) compounds,
Guélin M.
doaj   +2 more sources

Spin-Forbidden Formation of Amide Molecules in the Interstellar Medium [PDF]

open access: yes, 2023
In this study, two-state spin-forbidden mechanisms are proposed for the barrierless formation of amide isomers in the C2H5NO family of molecules.
Sergey, Varganov, Amir, Mirzanejad
core   +2 more sources

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

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

Controlled Formation and Unusual Reactivity of Cyanohexatriyne (HC<sub>7</sub>N), a Synthetically Challenging Interstellar Cyanopolyyne. [PDF]

open access: yesChemistry
First controlled formation of cyanohexatriyne (HC7N) is achieved using a cobalt–alkyne masking strategy that overcomes the intrinsic instability of nitrile‐substituted polyynes. The approach enables spectroscopic validation of HC7N and reveals its pronounced electrophilicity through a selective conjugate addition with diethylamine.
Lefrançois L   +4 more
europepmc   +2 more sources

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

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