Spitzer Space Telescope - Archive Research Proposal #20368 Shedding New Light on the Stellar Graveyard: Compact Objects in the Mid-IR Principal Investigator: Stefanie Wachter Institution: California Institute of Technology Co-Investigators: Donald Hoard, SSC/ Caltech Reba Bandyopadhyay, Oxford University Carolyn Brinkworth, University of Southampton / SSC David Ciardi, MSC / Caltech Cynthia Froning, University of Colorado Steve Howell, NOAO Sera Markoff, MIT Paula Szkody, University of Washington Gerard van Belle, MSC / Caltech Science Category: compact objects Dollars Approved: 32321.0 Abstract: We propose a systematic Spitzer archival study of the mid-IR properties of compact objects, both isolated and in binary systems, i.e. white dwarfs, X-ray binaries, cataclysmic variables, and magnetars. Most of these sources are too faint at mid-IR wavelengths to be observable from the ground, so this study will provide the very first comprehensive look at the mid-IR emission of these objects. The particular goals of our project are to establish the mid-IR spectral energy distribution, to search for the signatures of jets, circumbinary disks, low mass or planetary companions and debris disks, and to study the local environment of these sources.