Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey

Details Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992xrea.conf..198b&link_type=abstract

In MPI für Extraterrestrische Physik, X Ray Emission from Active Galactic Nuclei and the Cosmic X Ray Background p 198-201 (SEE

Astronomy and Astrophysics

Astronomy

17

Quasars, Radio Spectra, Rosat Mission, Sky Surveys (Astronomy), X Ray Spectra, Data Processing, Heao 2, Luminosity, Proportional Counters, Red Shift, Spectrum Analysis, X Ray Astronomy, X Ray Telescopes

Scientific paper

The X-ray and broadband spectrum properties of a flux limited sample of radio loud quasars observed in the Rosat All Sky Survey (RASS) were investigated. Mean X-ray spectral indexes of alphaenergy approximately 1.1 were found in the flat radio spectrum subsample and approximately 1.3 in the steep radio spectrum subsample. This is harder than the mean X-ray spectra for radio quiet quasars (alpha energy approximately 1.5) observed in the RASS but considerably steeper than the mean X-ray spectral index observed for radio loud quasars in the Einstein Image Proportional Counter (IPC). There is a strong correlation between the X-ray power law index observed in the RASS and the optical to X-ray broad band power law index alphaox, consistent with the two being identical in the flat radio spectrum sample. This was interpreted as evidence for a power law component extending all the way from the optical to the soft X-ray range which was not seen in former X-ray missions. A hardening was also found of the X-ray spectra with redshift and/or X-ray luminosity in the flat radio spectrum sample, possibly due to fact that the steep spectral component observed at low redshifts out of the Rosat energy range.

Affiliated with

Also associated with

No associations

Rating

Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey 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 Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectra of radio-loud quasars observed in the ROSAT/XRT all sky survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1491990