Photometric Transits from the MACHO Project Database

Details Photometric Transits from the MACHO Project Database Photometric Transits from the MACHO Project Database

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...604..379d&link_type=abstract

The Astrophysical Journal, Volume 604, Issue 1, pp. 379-387.

Astronomy and Astrophysics

Astronomy

16

Stars: Binaries: Eclipsing, Stars: Planetary Systems, Stars: Low-Mass, Brown Dwarfs

Scientific paper

We have searched the MACHO project photometry database for light curves consistent with the transits of low-luminosity objects. By analyzing the 180,000 brightest stars in 14 0.5 deg2 fields toward the Galactic bulge, we have found a few hundred low-amplitude eclipsing binary systems. We have used the shapes and colors of these objects to separate the transits of objects with relatively small radii from the grazing eclipses of stars with larger radii. We find nine objects with short-period eclipses consistent with either giant extrasolar planets or late-type dwarf stars.

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