PG 1634+706 (Credit: figure and text courtesy of P. Nandra) The X-ray spectrum of the PG 1634+706 (z=1.084), as observed with the ASCA SIS detectors. Unlike lower-redshift Seyfert 1 galaxies, this quasar shows no evidence for iron K-alpha fluorescence. This may be related to the high luminosity of the source, which might indicate a high accretion rate, and therefore an ionized accretion disk. Search for an Image: (Enter the name of an object.) Additions or Comments: Have we left anything out? Is there something you would like to have added to this page (a link to your own group's research page, for example...)? IMAGES | By Mission | Stars | Cataclysmic Variables | X-ray Binaries | Pulsars | Supernova Remnants & Planetary Nebulae | Galaxies | Active Galactic Nuclei | Clusters and Groups of Galaxies | X-ray/gamma-ray Background & Deep Fields | Solar System Objects | Gamma Ray Bursts HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public Last modified: Thursday, 26-Jun-2003 13:48:46 EDT