A Study on the Pulse Profiles of the HMXB 4U 1901+03

Details A Study on the Pulse Profiles of the HMXB 4U 1901+03 A Study on the Pulse Profiles of the HMXB 4U 1901+03

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cha%26a..32..241c&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 32, Issue 3, p. 241-252.

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

After a silence of some 32 years, the high-mass X-ray binary (HMXB) 4U1901+03 produced an outburst in Feb. 2003. With the observed data of RXTE (Rossi X-ray Timing Explorer) over a 5 month duration, we have made a systematic study of the pulse profile of this source, and obtained its time evolution and its correlation with the photon energy. It is found that the variations of the pulse profile and the pulse fraction with the accretion rate of the binary system exhibit a stepwise evolution, and that the pulse fraction reaches its peak at energies under ten KeV. The complex variation of the pulse profile indicates that the pulse profile can not be explained by a single geometrical or physical model, rather, it must be related with both the viewing angle and the radiation mechanism. The observed features are here discussed in terms of the standard radiation model of pulsars.

Affiliated with

Also associated with

No associations

Rating

A Study on the Pulse Profiles of the HMXB 4U 1901+03 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 A Study on the Pulse Profiles of the HMXB 4U 1901+03, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Study on the Pulse Profiles of the HMXB 4U 1901+03 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1361901