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A large radio galaxy behind the supernova remnant HB9HB9 is a 2-deg-diameter radio shell with X-ray emission from a broad diffuse band in the interior. Within this band, a weak unresolved X-ray source coincides with the radio source 4C 46.09. To identify this source CCD I and V band pictures and a spectrum were obtained. The source is a galaxy at redshift 0.195, and is therefore only accidentally aligned with HB9. The galaxy is large and bright and has the characteristics of a cD galaxy, often found at the center of clusters. If the galaxy is centered in a cluster, some of the surrounding diffuse X-rays may also be extragalactic.
Document ID
19920032803
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/116027
Authors
Seward, F. D. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Fabricant, D. G. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Kirshner, R. P. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Mcclintock, J. E. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Smith, R. C. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Remillard, R. A. (MIT Cambridge, MA, United States)
Date Acquired
August 15, 2013
Publication Date
December 1, 1991
Publication Information
Publication: Astronomical Journal
Volume: 102
ISSN: 0004-6256
Subject Category
Astrophysics
Report/Patent Number
ISSN: 0004-6256
Accession Number
92A15427
Funding Number(s)
CONTRACT_GRANT: NAS8-30751
Distribution Limits
Public
Copyright
Other

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