The broad-band high-energy spectrum of CYG X-1.

Details The broad-band high-energy spectrum of CYG X-1. The broad-band high-energy spectrum of CYG X-1.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..120c.159w&link_type=abstract

Astronomy and Astrophysics Supplement, v.120, p.159-162

Astronomy and Astrophysics

Astrophysics

2

Accretion, Accretion Disks, Stars: Individual: Cyg X-1, X-Rays: Stars, Gamma Rays: Observations

Scientific paper

The X-ray spectrum of the prominent galactic black hole candidate Cyg X-1 has historically been modeled by thermal Comptonization or Compton reflection models. However, data from instruments covering different energy ranges have produced different model parameters, indicating that broad band spectra should be used to constrain the models. To find a model which can overcome this problem, we have collected broad band data from 1keV to 1MeV. We describe this spectrum by a new self-consistent accretion disk corona model where the corona is situated above a cold disk. The coronal compactness is l_C_=0.75 and the optical depth of the corona is τ_e_=0.18, resulting in an equilibrium temperature of =~150keV. We also report the tentative detection of a S Kα- and a Si Kα-fluorescent line, both being much weaker than the lines expected from our models.

Affiliated with

Also associated with

No associations

Rating

The broad-band high-energy spectrum of CYG X-1. 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 broad-band high-energy spectrum of CYG X-1., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The broad-band high-energy spectrum of CYG X-1. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1146038