Bibcode
Doyle, L. R.; Deeg, H. J.; Jenkins, J. M.
Referencia bibliográfica
American Astronomical Society, 197th AAS Meeting, #62.05; Bulletin of the American Astronomical Society, Vol. 32, p.1506
Fecha de publicación:
12
2000
Número de citas
0
Número de citas referidas
0
Descripción
We have photometrically searched the circumstellar habitable zone (about
95 eclipsing binary system CM Draconis for evidence of planetary
transits. With 1014 hours of imaging data we have reached a detection
limit of about 2.3 Earth radii (less than 1 60 days or less, marginally
demonstrating that the ground-based detection of large terrestrial-class
planets around small main-sequence stars is possible using 1-meter-sized
telescopes. We have also found that precise timing of the stellar
eclipses themselves is capable of detecting non-coplanar jovian- mass
planets with semi-major axes of 1 AU or greater. Two 2.5- Earth-radii
terrestrial-sized transit candidate planets remain after applying a
matching-correlation filter comparing over 400 million quasi-periodic
transit models with the differential light curve. Also, one outer
jovian-mass candidate is indicated in the power spectrum of the O-C
residuals from about four dozen precise eclipse timings over 6 years. We
will discuss our recent extension of these methods to crowded stellar
fields where hundreds of eclipsing binary systems may be searched at the
same time.