Other
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542102c&link_type=abstract
American Astronomical Society, AAS Meeting #215, #421.02; Bulletin of the American Astronomical Society, Vol. 42, p.286
Other
Scientific paper
Since 2004, we have been conducting a visible light radial velocity survey at McDonald Observatory of the Taurus-Auriga low-mass star forming region. Our goals are to detect young, giant planets in order to identify the timescale for planet formation, and to search for young brown dwarfs in order to explore whether the brown dwarf desert is the result of formation or evolution. Since it has been shown that bisector analysis is not always adequate to rule out star spot induced radial velocity signals, we conduct follow-up K band observations at the IRTF to distinguish true companions from stellar activity. As part of our ongoing survey, we present the first positive detection of a short-period, giant planet around a 1-2 Myr old classical T Tauri star. Our data suggest a planet mass of 6 Mjup and an orbital solution with P = 8.28 days, a = 0.069 AU, and e = 0.53. While we find considerable uncertainty in some of our orbital parameters (notably e), infrared observations scheduled for late Fall 2009 should improve the precision of the planet's orbital elements. We also present preliminary results from other promising candidates in our survey.
Crockett Christopher
Hartigan Patrick
Jaffe Daniel T.
Johns-Krull Christopher M.
Mahmud Naved
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