Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-11-09
Astronomy and Astrophysics
Astrophysics
2 pages, 2 figures. To appear in the proceedings of "The X-ray Universe 2005", San Lorenzo de El Escorial (Spain), 26-30 Septe
Scientific paper
We present the spectral and temporal analysis of the 2004/2005 outburst of the transient X-ray pulsar V0332+53 as observed with Integral. After the discovery of the third cyclotron line in phase averaged spectra (Kreykenbohm et al 2005, Pottschmidt et al 2005), detailed pulse phase spectroscopy revealed remarkably little variability of the cyclotron lines through the 4.4s X-ray pulse (Pottschmidt et al 2005). During the decline of the outburst, the flux was observed to decay exponentially until 2005 Feb 10 and linearly thereafter. The spectrum was found to become harder with time, while the folding energy remained constant. The energy of the fundamental cyclotron line increased with time from 26.5kev in the RXTE observation up to 29.5kev in the last Integral one indicating that the emission region is moving closer to the surface of the neutron star. For a detailed analysis, see Mowlavi et al (2005).
Coburn Wayne
Kretschmar Peter
Kreykenbohm Ingo
Mowlavi Nami
Pottschmidt Katja
No associations
LandOfFree
Observation of V0332+53 over the 2004/2005 outburst with Integral 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 Observation of V0332+53 over the 2004/2005 outburst with Integral, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of V0332+53 over the 2004/2005 outburst with Integral will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-103779