An X‐Ray Atlas of Groups of Galaxies | Zendy

John S. Mulchaey | Zendy; David Davis | Zendy; R. F. Mushotzky | Zendy; David Burstein | Zendy

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An X‐Ray Atlas of Groups of Galaxies

Author(s) -

John S. Mulchaey,

David Davis,

R. F. Mushotzky,

David Burstein

Publication year - 2003

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/345736

Subject(s) - rosat , astrophysics , physics , galaxy , spiral galaxy , atlas (anatomy) , redshift , galaxy group , astronomy , elliptical galaxy , geology , paleontology

A search was conducted for a hot intragroup medium in 109 low-redshift galaxygroups observed with the ROSAT PSPC. Evidence for diffuse, extended X-rayemission is found in at least 61 groups. Approximately one-third of thesedetections have not been previously reported in the literature. Most of the groups are detected out to less than half of the virial radiuswith ROSAT. Although some spiral-rich groups do contain an intragroup medium,diffuse emission is restricted to groups that contain at least one early-typegalaxy.Comment: 39 pages, 12 figures, to appear in The Astrophysical Journal Sup

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