Interferometric Observation of a Rapidly Rotating Star, Altair

Details Interferometric Observation of a Rapidly Rotating Star, Altair Interferometric Observation of a Rapidly Rotating Star, Altair

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..361..475o&link_type=abstract

Active OB-Stars: Laboratories for Stellar and Circumstellar Physics, ASP Conference Series, Vol. 361, Proceedings of the confere

Physics

Scientific paper

Recent development of optical/infrared interferometers made it possible to measure the effect of rapid rotation on stellar shape and surface brightness distribution. We observed Altair (A7IV-V) with the Navy Prototype Optical Interferometer and found that the star is not only elongated but also asymmetrically brightened because of its rapid rotation. In this poster, we report the results of our observation and discuss how the physical parameters of the rotating star are constrained by these interferometric data.

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