Radial Velocities Weighted with Line Strength

Details Radial Velocities Weighted with Line Strength Radial Velocities Weighted with Line Strength

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...190.2205v&link_type=abstract

American Astronomical Society, 190th AAS Meeting, #22.05; Bulletin of the American Astronomical Society, Vol. 29, p.802

Astronomy and Astrophysics

Astronomy

Scientific paper

We describe the use of spectral line strength based weights in computing radial velocity proximity effects. Because absorption line equivalent widths depend on effective temperature, surface gravity, chemical composition and aspect angle, line strength varies across the surface of tidally distorted stars and ideally should be taken into account when calculating stellar disk-integrated radial velocities. We discuss the implementation of flux-based as well as equivalent width-based weights with examples.

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