Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis

Details Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998astl...24..572k&link_type=abstract

Astronomy Letters, Volume 24, Issue 5, September 1998, pp.572-583; Pis'ma v Astronomicheskii Zhurnal, Vol. 24, p. 663

Astronomy and Astrophysics

Astronomy

2

Scientific paper

During the Prognoz-9 experiment, we searched for periodic sources in the hard X-ray range (10-200 keV). No periodicities were detected during the observations of regions offset from the Galactic plane and the Galactic-`anticenter' region. A further analysis of the data refined the list of observed periodic sources in the Galactic-center region with periods of hours and days. In addition to the previously detected periodicities -- 152 h (Nova Ophiuchi 1977), 98 h, 82 h (4U 1700-37), 69 h, 62 h, 13.3 h, 9.36 h, 8.15 h (Cen X-4), 4.35 h (4U 1755-33), and 3.45 h - we found new periodic sources: 8.04, 4.38, and 1.47 h. The mean phase profiles (light curves) in various energy bands were constructed for all the observed periodicities. The mean phase profiles for most of the observed periodic sources differ in shape from harmonic and purely `eclipsing' profiles. Evidence was obtained for the presence of peculiar phase features in some of the light curves.

Affiliated with

Also associated with

No associations

Rating

Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis 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 Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of the periodic hard x-ray sources discovered during the Prognoz-9 experiment; The results of a further analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-811982