2007/12/21 by B. V. Komberg, Д. И. Нагирнер, D. I. Nagirner +5
Engineering · Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #History and Developments in Astronomy #Photocathodes and Microchannel Plates #astro-ph
paper · pdf · doi:10.48550/arxiv.0712.3795
10 pages, 4 figures, submitted to Astronomichesky Zhurnal
openalex publication_date 2007/12/21 · arxiv created 2008/02/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The history of discovering of hot gas in galaxies is traced briefly, its main properties are described and the desirability to make them more precise, in particular to obtain additional data on the mass of such gas is pointed out. For this purpose observations of the Sunyaev-Zel'dovich effect on hot gas of coronas of elliptic galaxies are proposed. The absolute and relative disturbances of the cosmic microwave radiation spectrum due to scattering of relic photons by Maxwellian electrons are calculated according the formula of the article. With the example of three elliptic galaxies it is shown that observation of the SZ effect on such galaxies is quite possible. Kinematic SZ effect arising due to peculiar movement and rotation of galaxies is available for observation as well. Such observations combined with X-ray data would make it possible to get more about properties of galactic gas, to obtain additional information on rotation of galaxies, on possible accreting gas flows and on hot galactic wind.