SIMBAD references

2005ApJ...628..439M - Astrophys. J., 628, 439-452 (2005/July-3)

First results from the CHARA array. I. An interferometric and spectroscopic study of the fast rotator α Leonis (Regulus).

McALISTER H.A., TEN BRUMMELAAR T.A., GIES D.R., HUANG W., BAGNUOLO W.G.Jr, SHURE M.A., STURMANN J., STURMANN L., TURNER N.H., TAYLOR S.F., BERGER D.H., BAINES E.K., GRUNDSTROM E., OGDEN C., RIDGWAY S.T. and VAN BELLE G.

Abstract (from CDS):

We report on K-band interferometric observations of the bright, rapidly rotating star Regulus (type B7 V) made with the CHARA Array on Mount Wilson, California. Through a combination of interferometric and spectroscopic measurements, we have determined for Regulus the equatorial and polar diameters and temperatures, the rotational velocity and period, the inclination and position angle of the spin axis, and the gravity darkening coefficient. These first results from the CHARA Array provide the first interferometric measurement of gravity darkening in a rapidly rotating star and represent the first detection of gravity darkening in a star that is not a member of an eclipsing binary system.

Abstract Copyright: ∼

Journal keyword(s): Infrared: Stars - Stars: Fundamental Parameters - Stars: Individual: Constellation Name: α Leonis - Stars: Individual: Name: Regulus - Stars: Rotation - Techniques: Interferometric

Simbad objects: 10

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