Atmospheric pressure and molecular cloud formation in early-type galaxies

Autor:	Iu. V. Babyk, B. R. McNamara, P. E. J. Nulsen, H. R. Russell, A. C. Edge, Leo Blitz
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics - Astrophysics of Galaxies Astrophysics::Galaxy Astrophysics
Zdroj:	The Astrophysical Journal, 2023, Vol.944(1), pp.69 [Peer Reviewed Journal]
Popis:	A strong correlation between atmospheric pressure and molecular gas mass is found in central cluster galaxies and early-type galaxies. This trend and a similar trend with atmospheric gas density would naturally arise if the molecular clouds condensed from hot atmospheres. Limits on the ratio of molecular to atomic hydrogen in these systems exceed unity. The data are consistent with ambient pressure being a significant factor in the rapid conversion of atomic hydrogen into molecules as found in normal spiral galaxies. 7 pages, 4 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a66ef49a552d65f413ab57b4658f927 http://arxiv.org/abs/2110.15410 Zobrazit plný text záznamu