The 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3

Details The 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3 The 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3

1997-05-19

arxiv.org/abs/astro-ph/9705141v1

Astronomy and Astrophysics

Astrophysics

8 pages, TeX, 2 postscript figures; to appear in ApJ Letters

Scientific paper

10.1086/310787

We present a high-quality X-ray spectrum in the 3--53 keV rest-frame band of the radio-loud quasar 1508+5714, by far the brightest known X-ray source at z > 4. A simple power-law model with an absorption column density equal to the Galactic value in the direction of the source provides an excellent and fully adequate fit to the data; the measured power-law photon index Gamma = 1.42 (+0.13,-0.10). Upper limits to Fe K alpha line emission and Compton-reflection components are derived. We offer evidence for both X-ray and radio variability in this object and provide the first contemporaneous radio spectrum (alpha = -0.25). The data are all consistent with a picture in which the emission from this source is dominated by a relativistically beamed component in both the X-ray and radio bands.

Affiliated with

Also associated with

No associations

Rating

The 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3 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 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 3-53 keV Spectrum of the Quasar 1508+5714: X-rays from z = 4.3 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-530207