Other
Scientific paper
Feb 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007noao.prop..230a&link_type=abstract
NOAO Proposal ID #2007A-0230
Other
Scientific paper
In 2004, we started a large systematic time-resolved photometric study of nine nearby, young (pre-main sequence) and rich open clusters (the Monitor Project), to search for young low mass eclipsing systems and transiting planets. Our main goals are to constrain evolutionary models of young very-low-mass stars, brown dwarfs and planets, and to place constraints on planet formation and migration timescales. In our 14 night survey of the 5 Myr old open cluster NGC2362, carried out using the Blanco telescope at CTIO, we have detected eclipse-like features in the light curves of 5 likely cluster members. Two display bona fide eclipses, and the others display interesting short-duration eclipses whose depth and phase changed over our 2 yr monitoring campaign, possibly caused by evolving structures in a disk. The goal of this proposal is to monitor these objects in R & K. Modelling of the multi-band light curves will provide a diagnostic of the temperature of what is causing the eclipses and help identify any spot-induced variations. Combining them with radial velocity measurements from other telescopes, we will then measure masses, radii and temperatures for the eclipsing components.
Aigrain Suzanne
Hebb Leslie
Hodgkin Simon
Irwin Jonathan
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