NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Temperature and elemental abundances in the Abell cluster A576 derived from X-ray observationsResults of the Einstein Solid State Spectrometer (SSS) observations of the central region of Abell 576 combined with HEAO 1 spectra of the total cluster are reported. Line emission due to Fe, Si, and S from a hot plasma in the central region of the object are detected. Abundances roughly one-half of the solar value are derived for these elements. The total cluster spectrum is well fitted by a thermal bremsstrahlung model with a temperature of 4 +3.5 or -1.4 x 10 to the 7th K. This temperature is in conflict with the SSS temperature determination for the center of the cluster. This difference can be explained if cooling takes place in the central part of the cluster, or if the X-ray emission in the center is dominated by the emission of a single galaxy.
Document ID
19840050293
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rothenflug, R.
(Commissariat a l'Energie Atomique Gif-sur-Yvette, France)
Vigroux, L.
(Commissariat al'Energie Atomique, Service d'Astrophysique, Gif-sur-Yvette Essonne, France)
Mushotzky, R. F.
(Commissariat a l'Energie Atomique Gif-sur-Yvette, France)
Holt, S. S.
(NASA Goddard Space Flight Center Laboratory for High Energy Astrophysics, Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1984
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 279
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
84A33080
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available