The soft X ray excess in Einstein quasar spectra

Details The soft X ray excess in Einstein quasar spectra The soft X ray excess in Einstein quasar spectra

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296.1081w&link_type=abstract

In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background p 1081-1088 (SEE N90-2

Astronomy and Astrophysics

Astronomy

13

Active Galactic Nuclei, Data Processing, Quasars, Signal To Noise Ratios, Spectrum Analysis, X Ray Spectra, Astronomical Models, Heao 2, Proportional Counters, Spectral Resolution, Variability, X Ray Astronomy

Scientific paper

The soft X-ray excess component is studied for a signal to noise limited subsample of 14 quasars from the WE87 sample observed with the Einstein Imaging Proportional Counter (IPC). Detailed analysis of the IPC data, combined with Einstein Monitor Proportional Counter (MPC) data where possible, and use of accurate galactic NH values allows estimation of the strength of any excess and improvement of constraints on the spectral slope at higher X-ray energies. A significant excess in 9 of the 14 objects is found. It is confined in all but one case to below 0.6 keV and variable in the two cases where there are multiple observations. The relation of the soft excess to other continuum properties of the quasars is investigated.

Affiliated with

Also associated with

No associations

Rating

The soft X ray excess in Einstein quasar spectra 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 The soft X ray excess in Einstein quasar spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The soft X ray excess in Einstein quasar spectra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1615348