AAS 204th Meeting, June 2004
Session 41 Spitzer Space Telescope
Topical Related Poster, Tuesday, June 1, 2004, 10:00am-7:00pm, Ballroom

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[41.05] On the Suitability of A Dwarfs as Mid-infrared Spectroscopic Standards

G.C. Sloan (Cornell), P.W. Morris (Caltech), S.B. Fajardo-Acosta (Caltech/SSC), V. Charmandaris (Cornell), D.L. Shupe (Caltech/SSC), C.W. Engelbracht (Steward Observatory), D.C. Hines (Space Science Institute), J. Rho (Caltech/SSC), K.Y.L. Su (Steward Observatory)

The Infrared Spectrograph (IRS) on the Spitzer Space Telescope is observing a suite of A dwarfs and K giants in order to check and improve its own spectrophotometric calibration and to cross-calibrate with MIPS and IRAC. The sample of A dwarfs observed with the IRS and MIPS is large enough to enable initial estimates of how well the mid-infrared spectral properties of A dwarfs can be predicted from their optical and near-infrared properties. In particular, we will address the question of contamination from previously undetected debris disks around these stars.

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