NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The Soft X-Ray Emission Component of Spiral GalaxiesWork included the analysis of the HRJ observations of the Sombrero galaxy (Fabbiano and Juda) published in Ap.J. This paper discussed the discovery of a point-like x-ray source at the nucleus of the galaxy, which is suspected to host a massive black hole. More work was done on the analysis of the Observation of M94 in support of an AXAF proposal. We have also analyzed the M81 data by adding to our observation the entire set of the archival ROSAT data. We plan to write up the results for publication. Both galaxies have nuclei optically similar to that of the Sombrero galaxy. The nucleus of M81 is a known x-ray source. The M94 data has revealed a point-like nuclear source superposed on more diffuse emission.
Document ID
19990026121
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
Fabbiano, Giuseppina
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1998
Subject Category
Space Radiation
Funding Number(s)
CONTRACT_GRANT: NAG5-1937
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available