What's Cool About Hot Stars? Cataclysmic Variables in the Mid-Infrared
Abstract
We review recent results from mid-infrared observations of cataclysmic variables with the Spitzer Space Telescope. In general, these observations have revealed mid-infrared excesses, above the level expected from the stellar and accretion components, in numerous systems. This excess can be modeled as originating from circumstellar and/or circumbinary dust. We present an overview of spectral energy distributions spanning the ultraviolet to the mid-infrared, as well as mid-infrared light curves, of disk-accreting and magnetic cataclysmic variables. Physically realistic models constructed to reproduce these data indicate that the mid-infrared luminosity of many cataclysmic variables is dominated by emission from warm (T < 2000 K) dust. The presence and characteristics of dust in cataclysmic variables has potentially important implications for the secular evolution scenario for interacting binary stars.
Additional Information
© 2009 Astronomical Society of the Pacific.Attached Files
Published - Hoard2009p8052Eighth_Pacific_Rim_Conference_On_Stellar_Astrophysics_A_Tribute_To_Kam-Ching_Leung.pdf
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Additional details
- Eprint ID
- 18216
- Resolver ID
- CaltechAUTHORS:20100510-121200634
- NASA
- Created
-
2010-06-24Created from EPrint's datestamp field
- Updated
-
2019-11-17Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)
- Series Name
- ASP Conference Series
- Series Volume or Issue Number
- 404