Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.9307f&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #93.07; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
Scientific paper
Most current theories to explain the observed shapes of planetary nebulae require that the nebula be created by a binary star system rather than an isolated asymptotic giant branch (AGB) star. Detection of binary companions to AGB stars, however, is hampered by the extreme luminosity of the primaries. We have used observations taken in ultraviolet light, where the AGB star is relatively faint, to search for systems that have flux in excess of AGB star models. Of the systems for which we obtained data, nearly all have an ultraviolet excess, which we interpret as emission from a companion star. The high detection rate demonstrates the feasibility of ultraviolet observations as a search technique for hot companions of AGB stars.
Findeisen Krzysztof
Gil de Paz Amando
Sahai Raghvendra
Sanchez Contreras Carmen
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