Warm Era COBE DIRBE Infrared Light Curves of Dusty Evolved Stars

Details Warm Era COBE DIRBE Infrared Light Curves of Dusty Evolved Stars Warm Era COBE DIRBE Infrared Light Curves of Dusty Evolved Stars

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..412..247s&link_type=abstract

The Biggest, Baddest, Coolest Stars ASP Conference Series, Vol. 412, proceedings of the workshop held 16-18 July 2007, at the Mi

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Scientific paper

We have extracted infrared light curves of a small set of evolved stars from the post-cryogen database of the DIRBE instrument on the COBE satellite, extending the cryogenic light curves an additional 2.77 years. These warm-era data have not previously been exploited, although they are of high quality, with median noise levels only about twice that of the cryogenic data. We present some example post-cryogenic light curves, and compare with optical data from the AAVSO and other sources. Wavelength-dependent phase lags, secondary maxima, and cycle-to-cycle variations are visible in these light curves.

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