ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo

Details ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.8405a&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #84.05; Bulletin of the American Astronomical Society, Vol. 32, p.1547

Astronomy and Astrophysics

Astronomy

Scientific paper

We report on two ASCA observations of the high-mass X-ray binary pulsar OAO 1657-415. A short observation near mid-eclipse caught the source in a low-intensity state. A later, longer observation of the source in its high state covered the eclipse ingress through mid-eclipse. In the second observation we found that the eclipse continuum emission was dominated by a soft, spatially extended component whose intensity decreased through the eclipse. We interpret this component as a dust-scattered X-ray halo. We constructed surface brightness profiles from the ASCA SIS data and fit a simple model halo convolved with the telescope's point spread function. We thus extracted the energy and time dependence of the halo and used the results to place constraints on the nature of the interstellar dust and the distance to the source.

Affiliated with

Also associated with

No associations

Rating

ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo 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 ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ASCA Observations of OAO 1657-415 and its Dust-Scattered X-Ray Halo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1726802