An IRAC view of the eclipsing pre-main-sequence star KH 15D

Details An IRAC view of the eclipsing pre-main-sequence star KH 15D An IRAC view of the eclipsing pre-main-sequence star KH 15D

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3441m&link_type=abstract

Spitzer Proposal ID #3441

Computer Science

Scientific paper

We propose to determine the cause of the mysterious eclipses of the T Tauri star KH 15D, located in the young (2-4 Myr) cluster NGC 2264. A new and promising theory holds that the system is a pre-main-sequence binary being occulted by the edge of an inclined circumbinary disk. We will test this theory with Spitzer, by searching for infrared emission from the disk, and measuring the eclipse depth as a function of infrared wavelength. If the theory is correct, this binary will be valuable as a test of pre-main- sequence stellar models (because the masses and radii of its components can be measured), and as a fascinating challenge in circumstellar disk dynamics (because the sharpness and inclination of the disk require explanation).

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