Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..582k&link_type=abstract
Astrophysical Journal, Part 1, vol. 218, Dec. 15, 1977, p. 582-589, 591. Research supported by Cambridge University and NASA.
Astronomy and Astrophysics
Astrophysics
3
Background Radiation, Cosmic Gases, Cosmic X Rays, Cosmology, Galactic Clusters, Intergalactic Media, Quasars, Radio Galaxies
Scientific paper
A model for the appearance of the all-sky low-energy X-ray background on a fine angular scale is presented which is based on primeval hot gas clouds associated with the formation of clusters of galaxies according to the Sunyaev-Zel'dovich (1972) model. It is noted that the background could have both granular and diffuse components if it is due to such gas clouds. The observed appearance of the granular component is predicted along with the observable characteristics of collapsing protoclusters. The effects of distant X-ray-emitting QSOs, radio galaxies, and normal galaxies on the observations are considered, and these sources are shown not to interfere with the possibility of observing the protoclusters. It is concluded that if sufficient heating occurred in an intracluster medium within some clusters of galaxies at the protocluster epoch, the ensemble properties of protoclusters could be observed with an X-ray telescope, and the time at which protoclusters formed could perhaps be estimated.
No associations
LandOfFree
Primeval gas clouds and the low-energy X-ray background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Primeval gas clouds and the low-energy X-ray background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Primeval gas clouds and the low-energy X-ray background will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1417691