Analyzing X-ray pulsar profiles: Geometry and beam pattern of centaurus X-3

U. Kraus, S. Blum, J. Schulte, H. Ruder, P. Mészáros

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

We present an analysis of the energy-dependent asymmetric pulse profile of the X-ray pulsar Cen X-3. We show that the data are compatible with the assumption that the asymmetry is caused by a distorted magnetic dipole field. Based on this assumption, it is possible to decompose the pulse profile into the contributions of the two emission regions at the magnetic poles. The results of the decomposition indicate that Cen X-3 has two equal emission regions which are displaced from antipodal positions by approximately 10° and have a pencil plus fan beam pattern.

Original languageEnglish (US)
Pages (from-to)794-805
Number of pages12
JournalAstrophysical Journal
Volume467
Issue number2 PART I
DOIs
StatePublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Kraus, U., Blum, S., Schulte, J., Ruder, H., & Mészáros, P. (1996). Analyzing X-ray pulsar profiles: Geometry and beam pattern of centaurus X-3. Astrophysical Journal, 467(2 PART I), 794-805. https://doi.org/10.1086/177653