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Title: Compact Dusty Clouds and Efficient H2 Formation in Diffuse Interstellar Medium
Authors: Ivlev, A. V.
Burkert, A.
Vasyunin, A.
Caselli, P.
Issue Date: 2018
Publisher: Institute of Physics Publishing
Citation: Compact Dusty Clouds and Efficient H2 Formation in Diffuse Interstellar Medium / A. V. Ivlev, A. Burkert, A. Vasyunin, et al. — DOI 10.3847/1538-4357/aac82f // Astrophysical Journal. — 2018. — Vol. 861. — Iss. 1. — 30.
Abstract: The formation of compact dusty clouds in diffuse interstellar medium (ISM) has been recently proposed and studied by Tsytovich et al. In the present paper, the effect of the clouds on the rate of H → H2 transition in the ISM is examined. We discuss the mechanisms leading to the formation of the clouds and the creation of gaseous clumps around them, analyze the main processes determining the efficiency of the recombination of atomic hydrogen on dust grains, and estimate the expected enhancement of the global H2 formation due to the presence of the clouds. In conclusion, we argue that the compact dusty clouds provide optimum conditions for the atomic recombination in diffuse ISM, and point out some astrophysical implications of the resulting H2 formation enhancement. © 2018. The American Astronomical Society. All rights reserved.
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85049991344
PURE ID: 7647858
ISSN: 0004637X
DOI: 10.3847/1538-4357/aac82f
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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