A1 Refereed original research article in a scientific journal
Completing the puzzle of the 2004-2005 outburst in V0332+53: The brightening phase included
Authors: Tsygankov S., Lutovinov A., Serber A.
Publication year: 2010
Journal: Monthly Notices of the Royal Astronomical Society
Journal name in source: Monthly Notices of the Royal Astronomical Society
Volume: 401
Issue: 3
First page : 1628
Last page: 1635
Number of pages: 8
ISSN: 0035-8711
DOI: https://doi.org/10.1111/j.1365-2966.2009.15791.x(external)
Web address : http://api.elsevier.com/content/abstract/scopus_id:73949126041(external)
Self-archived copy’s web address: https://arxiv.org/abs/0909.5379(external)
Analysis of the data obtained with the RXTE observatory during a powerful outburst of the X-ray pulsar V0332+53 in 2004-2005 is presented. Observational data covering the outburst brightening phase are analysed in detail for the first time. A comparison of source parameters and their evolution during the brightening and fading phases shows no evidence for any hysteretic behaviour. It is found that the dependences of the energy of the cyclotron absorption line on the luminosity during the brightening and fading phases are almost identical. The complete data sequence including the outburst brightening and fading phases makes it possible to impose the more stringent constraints on the magnetic field in the source. The pulse profile and pulsed fraction are studied as functions of the luminosity and photon energy. © 2009 RAS.
Downloadable publication This is an electronic reprint of the original article. |