Photometric Variability of Be/X-Ray Pulsar Binaries in the Small Magellanic Cloud
Abstract
We have studied the photometric variability of 10 SMC Be/X-ray pulsars using MACHO and OGLE-II data. For some of these systems we have found periodic behavior, including orbital outbursts and/or nonradial pulsations of the Be star. For others we were unable to identify any clear photometric periodicity, although their long-term light curves show significant structure. We present periodograms, phase dispersion minimization variances, and folded light curves for the systems that exhibit periodic photometric variability.
- Publication:
-
The Astronomical Journal
- Pub Date:
- August 2006
- DOI:
- 10.1086/505752
- Bibcode:
- 2006AJ....132..919S
- Keywords:
-
- Stars: Pulsars: General;
- Stars: Emission-Line;
- Be;
- stars: individual (XMMU J005152.2-731033);
- stars: individual (RX J0051.8-7231);
- stars: individual (RX J0052.1-7319);
- stars: individual (CXOU J005323.8-722715);
- stars: individual (XMMU J005605.2-722200);
- stars: individual (XMMU J005920.8-722316);
- stars: individual (CXOU J010102.7-720658);
- stars: individual (SAX J0103.2-7209);
- stars: individual (RX J0103.6-7201);
- stars: individual (RX J0105.1-7211);
- Stars: Variables: Other;
- X-Rays: Binaries