Eclipsing binary stars in the Large and Small Magellanic Clouds from the MACHO project: The Sample

Details Eclipsing binary stars in the Large and Small Magellanic Clouds from the MACHO project: The Sample Eclipsing binary stars in the Large and Small Magellanic Clouds from the MACHO project: The Sample

2007-11-10

arxiv.org/abs/0711.1617v1

Astron.J.134:1963-1993,2007

Astronomy and Astrophysics

Astrophysics

67 pages, 40 figures

Scientific paper

10.1086/521579

We present a new sample of 4634 eclipsing binary stars in the Large Magellanic Cloud (LMC), expanding on a previous sample of 611 objects and a new sample of 1509 eclipsing binary stars in the Small Magellanic Cloud (SMC), that were identified in the light curve database of the MACHO project. We perform a cross correlation with the OGLE-II LMC sample, finding 1236 matches. A cross correlation with the OGLE-II SMC sample finds 698 matches. We then compare the LMC subsamples corresponding to center and the periphery of the LMC and find only minor differences between the two populations. These samples are sufficiently large and complete that statistical studies of the binary star populations are possible.

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