Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20919606p&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #196.06; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
We have carried out rapid cadence photometric monitoring of AU Mic during the summers of 2005 and 2006 in order to search for possible planetary transits. AU Mic is a young (12 Myr) M1Ve BY Dra star that presents a nearly edge on debris disk. The favorable aspect of the system enables searching for exo planets via the photometric signature of a transit. We obtained photometry with the CTIO/SMARTS 1-m telescope + OSU Y4KCam in 2005 and 2006, and with the ANU MSSSO 40-inch telescope in 2006. Four photometric bands between 4500 and 6600 Angstrom were used on these telescopes to obtain photometric measurements with a cadence of approximately 2 minutes. We have achieved 0.003 mag r.m.s. differential photometry, which is sufficient to detect transits of Neptune radius planets. The two season data set allows to detect approximately 90% of planetary orbits with orbital periods less than 20 d. We present the results of our two season search for planetary transits. This research has been supported in part by NASA grant NAG5-7697.
Ardila David
Clampin Marc
Espinoza Pablo
Ford Holland
Golimowski Dave
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