SIMBAD references

2008ApJ...689.1274S - Astrophys. J., 689, 1274-1278 (2008/December-3)

Binarity in cool asymptotic giant branch stars: a GALEX search for ultraviolet excesses.

SAHAI R., FINDEISEN K., GIL DE PAZ A. and SANCHEZ CONTRERAS C.

Abstract (from CDS):

The search for binarity in AGB stars is of critical importance for our understanding of how planetary nebulae acquire the dazzling variety of aspherical shapes which characterizes this class. However, detecting binary companions in such stars has been severely hampered due to their extreme luminosities and pulsations. We have carried out a small imaging survey of AGB stars in ultraviolet light (using GALEX), where these cool objects are very faint, in order to search for hotter companions. We report the discovery of significant far-ultraviolet excesses toward nine of these stars. The far-ultraviolet excess most likely results either directly from the presence of a hot binary companion or indirectly from a hot accretion disk around the companion.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: General - Stars: Circumstellar Matter - ISM: Planetary Nebulae: General - Stars: AGB and Post-AGB - Stars: Mass Loss

Simbad objects: 14

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2019.10.18-04:50:22

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