Variability in PMS Circumbinary Disks

Details Variability in PMS Circumbinary Disks Variability in PMS Circumbinary Disks

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50537b&link_type=abstract

Spitzer Proposal ID #50537

Computer Science

Scientific paper

In the canonical model of star formation, the role of multiplicity remains an open issue, particularly in the formation and evolution of circumstellar and circumbinary disks. We propose to use Spitzer/IRS observations to measure variations in circumbinary disk emission with orbital phase in two pre-main sequence binaries. Variations in continuum spectral slope and silicate line strength and shape are expected from changes in the stellar illumination of the inner disk with orbital phase. These observations will probe the disk structure and composition, serving as a test of predictions made by dynamical models.

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