Publications of the MPIfR Optical & Infrared Interferometry Group

A. Domiciano de Souza, P. Kervella, S. Jankov, F. Vakili, N. Ohishi, T.E. Nordgren, L.Abe

Interferometric aperture synthesis of Altair: gravity darkening and inclination angle

"ESO Astrophysics Symposia"
Proceedings of the ESO Workshop: "The power of optical/IR interferometry: recent scientific results and 2nd generation VLTI instrumentation"
April 4-8, 2005 in Garching, Germany
pg.487-488 (2008)

Abstract
We perform a physically consistent analysis of all interferometric data available for Altair in order to estimate two important parameters for this rapid rotator : (1) a gravity-darkening compatible with the expected value for hot stars (Teff∝ g 0.25; von Zeipel effect) and (2) an intermediate inclination for the rotation axis (i=55°±8° for our best model).

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