V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile

Details V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile

2005-11-08

arxiv.org/abs/astro-ph/0511237v3

Mon.Not.Roy.Astron.Soc.371:19-28,2006

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS. 10 pages, 9 figures

Scientific paper

10.1111/j.1365-2966.2006.10610.x

We present results of observations of the transient X-ray pulsar V0332+53 performed during a very powerful outburst in Dec, 2004 -- Feb, 2005 with the INTEGRAL and RXTE observatories in a wide (3-100 keV) energy band. A cyclotron resonance scattering line at an energy of ~26 keV has been detected in the source spectrum together with its two higher harmonics at ~50 and ~73 keV, respectively. We show that the energy of the line is not constant but linearly changes with the source luminosity. Strong pulse profile variations, especially near the cyclotron line, are revealed for different levels of the source intensity. We discuss the obtained results in terms of the theoretical models of X-ray pulsars.

Affiliated with

Also associated with

No associations

Rating

V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile 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 V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and V0332+53 in the outburst of 2004--2005: luminosity dependence of the cyclotron line and pulse profile will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-103506