X-ray structure of clusters of galaxies with ROSAT

Details X-ray structure of clusters of galaxies with ROSAT X-ray structure of clusters of galaxies with ROSAT

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993basi...21..293s&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 21, no. 3-4, p. 293-301

Astronomy and Astrophysics

Astrophysics

Cooling Flows (Astrophysics), Dark Matter, Galactic Clusters, Interstellar Gas, X Ray Imagery, Abundance, Brightness Distribution, Image Analysis, Luminosity, Rosat Mission, X Ray Telescopes

Scientific paper

X-ray emission from clusters of galaxies is due to thermal Bremsstrahlung from a hot thin gas in the intergalactic medium. The gas is generally considered to be smoothly distributed with a size of approximately 3 Mpc. X-ray imaging with the Einstein Observatory has shown that the surface brightness departs from a symmetrical distribution or has multiple peaks (sub-structure) in nearly 30% of the clusters. Recent ROSAT observations show (1) the relaxed clusters like Coma and Abell 2256 have significant sub-clustering due to on-going mergers, (2) the existence of filamentary X-ray structure in the central regions of the cooling flow clusters, and (3) the dominance of dark matter and the lowest metal abundance in the gas in a small group of galaxies, NGC 2300. These results from ROSAT are reviewed here.

Affiliated with

Also associated with

No associations

Rating

X-ray structure of clusters of galaxies with ROSAT 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 X-ray structure of clusters of galaxies with ROSAT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray structure of clusters of galaxies with ROSAT will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1561504