Disks Around Post-Main Sequence Binaries |
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| Authors: | M Jura |
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| Institution: | (1) UCLA Department of Physics and Astronomy, University of California, Los Angles, CA 90095-1562, USA |
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| Abstract: | We propose that at least two stars on or near the AGB have long-lived orbiting disks: HD 44179, the central star in the Red
Rectangle, and BM Gem, a carbon-rich star with an oxygen-rich circumstellar envelope. The CO emission from both of these disks
has a spike with a width near ∼2 km s−1, indicating disk radii of ∼1016 cm. The dust in such disks is therefore quite cold (near T ∼ 50 K for the Red Rectangle) and may emit primarily at submillimeter
wavelengths. The disks around stars where there is also substantial mass loss may not be easily observable; there could be
many as yet undiscovered disks around AGB stars
This revised version was published online in September 2006 with corrections to the Cover Date. |
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