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Photometric Periodicities in Magellanic Cloud Be/Neutron Star Binaries

Published online by Cambridge University Press:  22 February 2018

P. C. Schmidtke ,
A. P. Cowley ,
Lance Levenson  and
Katie Sweet
P. C. Schmidtke
Affiliation:
Dept. Physics and Astronomy, Arizona State Univ., Tempe, AZ 85287-1504USA
A. P. Cowley
Affiliation:
Dept. Physics and Astronomy, Arizona State Univ., Tempe, AZ 85287-1504USA
Lance Levenson
Affiliation:
Dept. Physics and Astronomy, Arizona State Univ., Tempe, AZ 85287-1504USA
Katie Sweet
Affiliation:
Dept. Physics and Astronomy, Arizona State Univ., Tempe, AZ 85287-1504USA

Extract

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We are investigating the photometric properties of Be/neutron star systems in the Magellanic Clouds using V, R, and I data from the MACHO and OGLE-II surveys. Here we give results for 6 systems, 4 of which are X-ray pulsars.

The long-term light curves for each of these systems were searched for periodic variations. We first pre-whitened the data by fitting an appropriate polynomial to “flatten” lengthy portions of the light curves. We then used the method described by Home & Baliunas (1986) to find periodicities in the relative magnitudes.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 215
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

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