Results 21 to 30 of about 5,067 (228)
The Astrophysical Journal Letters, 2023 Observations of OH ^+ are used to infer the interstellar cosmic ray ionization rate in diffuse atomic clouds, thereby constraining the propagation of cosmic rays through and the shielding by interstellar clouds, as well as the low energy cosmic ray ...
Ábel Kálosi +14 more
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The Astrophysical Journal, 2023 The formation of complex organic molecules by simulated secondary electrons generated in the track of galactic cosmic rays was investigated in interstellar ice analogs composed of methanol and carbon dioxide.
Joshua H. Marks +5 more
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Photodissociation of OH in Interstellar Clouds
The Astrophysical Journal, 1984 Calculations are presented of the lifetime of OH against photodissociation by the interstellar radiation field as a function of depth into interstellar clouds containing grains of various scattering properties. The effectiveness of the different photodissociation channels changes with depth into a cloud. Absorption into the repulsive - state is usually
Dishoeck, E.F. van, Dalgarno, A.
openaire +3 more sources
Interstellar processes: Ortho/para conversion, radiative association, and dissociative recombination
EPJ Web of Conferences, 2015 The study of the ortho-to-para ratio of assorted gas-phase interstellar molecules such as H2, H2O, NH3, and H2O+ has gained interest in recent years, based partially on new spectral observations of light hydrides by the Herschel Space Observatory ...
Herbst Eric
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CLOUD STRUCTURE OF INTERSTELLAR MATTER. OBSERVATIONAL PARAMETERS
Odessa Astronomical Publications, 2017 Parameters of 7600 HI clouds were determined on the base of HI RATAN-600 Survey in the second and third quadrants of galactic longitudes. The spectra of cloud linear diameters, HI densities and masses are obtained first for such huge population of clouds.
I. V. Gosachinskij, V. V. Morozova
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Diffuse Interstellar Clouds [PDF]
Highlights of Astronomy, 1992 AbstractDiffuse clouds are interstellar objects through which starlight is not greatly extinguished. As a result, many studies rely on ultraviolet and visible measurements. The focus of this review is on spectroscopic work involving atomic and molecular lines. From these measurements, the physical and chemical makeup of the clouds is derived.
David L. Lambert, S. R. Federman
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Discovery of the Elusive Carbonic Acid (HOCOOH) in Space
The Astrophysical Journal, 2023 A quarter century after the detection of the last interstellar carboxylic acid, acetic acid (CH _3 COOH), we report the discovery of a new one, the cis-trans form of carbonic acid (HOCOOH), toward the Galactic center molecular cloud G+0.693–0.027. HOCOOH
Miguel Sanz-Novo +14 more
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elijah-mullens/Skeletonizing-and-Analyzing-Pipeline-for-3D-Interstellar-Cloud-Ensembles: v1.0.0
, 2023 <p>In order to utilize the Skeletonizing and Analysis Pipeline for Interstellar Clouds</p> <p>First, go to Installation-Instructions folder and download all packages in a new conda environment</p> <p>Then there are a few ...
Elijah Mullens
core +1 more source
PECULIARITIES OF MIXING METALS IN INTERGALACTIC AND INTERSTELLAR MEDIA
Odessa Astronomical Publications, 2008 We review the current status of the problem of metal mixing in the intergalactic and interstellar media. We give simple arguments for inefficiency of mixing metals because of a saturation of hydrodynamic (Rayleigh-Taylor and Kelvin-Helmholz ...
S. Yu. Dedikov +2 more
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Ionize Hard: Interstellar PO+ Detection
Frontiers in Astronomy and Space Sciences, 2022 We report the first detection of the phosphorus monoxide ion (PO+) in the interstellar medium. Our unbiased and very sensitive spectral survey toward the G+0.693–0.027 molecular cloud covers four different rotational transitions of this molecule, two of ...
Víctor M. Rivilla +17 more
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