Are there ADAFs in the centers of nearby x-ray elliptical galaxies?

Details Are there ADAFs in the centers of nearby x-ray elliptical galaxies? Are there ADAFs in the centers of nearby x-ray elliptical galaxies?

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.7002s&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #70.02; Bulletin of the American Astronomical Society, Vol. 31, p.1472

Astronomy and Astrophysics

Astronomy

Scientific paper

Recently it has been argued that the hard x-ray power-law tails exhibited in the spectra of several nearby giant elliptical galaxies are consistent with the existence of low-radiative efficiency accretion flows (ADAFs) onto a massive black hole in the centers of the galaxies. The expected fluxes from these central ADAFs as derived from x-ray spectral analyses indicate that they may be visible as x-ray point sources. We analyze archival ROSAT HRI images of three such galaxies, NGCs 1399, 4636, and 4696, to determine whether such ADAF sources are detected. No x-ray point source at the centers of these galaxies that would be associated with such a central ADAF appear to be found. The measured upper limits for the fluxes of a central x-ray point source in these clusters will also be presented.

Affiliated with

Also associated with

No associations

Rating

Are there ADAFs in the centers of nearby x-ray elliptical galaxies? 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 Are there ADAFs in the centers of nearby x-ray elliptical galaxies?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Are there ADAFs in the centers of nearby x-ray elliptical galaxies? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1743122