Infrared Excesses in Two Notable Stars

Details Infrared Excesses in Two Notable Stars Infrared Excesses in Two Notable Stars

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40464r&link_type=abstract

Spitzer Proposal ID #40464

Computer Science

Scientific paper

We propose to obtain IRAC and MIPS 24 micron photometry of J37 and PG 0950+139. J37 is a remarkable main-sequence F-type star with peculiar photospheric abundances that have been attributed to the accretion of an asteroid; can we detect circumstellar dust remnant of this event? PG 0950+139 is a hot white dwarf with a unique, compact ionized nebula. Is this nebular gas located in an extended disk orbiting the M-dwarf companion to the hot star, and can we detect infrared emission from dust in this disk?

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