The radial-velocity curve of V1010 Ophiuchi - Orbital elements and the rotational disturbance

Details The radial-velocity curve of V1010 Ophiuchi - Orbital elements and the rotational disturbance The radial-velocity curve of V1010 Ophiuchi - Orbital elements and the rotational disturbance

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..371w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, March 1988, p. 371-376.

Astronomy and Astrophysics

Astronomy

5

Eclipsing Binary Stars, Orbital Elements, Radial Velocity, Stellar Motions, Angular Velocity, Stellar Rotation, Velocity Distribution

Scientific paper

Using observations outside eclipse, new spectroscopic orbital elements are computed for the single-line eclipsing binary V1010 Oph. Observations inside eclipse are used to identify the Rossiter-McLaughlin rotational disturbance in the radial-velocity curve. The analysis of the rotational disturbance for V1010 Oph suggests that the instantaneous orbital period of the star for the mean epoch of the eclipse observations is 0.66142298 d, while its rotational velocity is 128 km/s. The latter value used in combination with the appropriate spectroscopic and photometric data yields unexpectedly small masses for both component stars in the system.

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