The luminosity and related parameters of variable and non-variable A, F stars

Details The luminosity and related parameters of variable and non-variable A, F stars The luminosity and related parameters of variable and non-variable A, F stars

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.177..123a&link_type=abstract

In ESA The Sci. Aspects of the Hipparcos Space Astrometry Mission p 123-124 (SEE N82-30146 20-88)

Astronomy and Astrophysics

Astronomy

3

A Stars, F Stars, Spaceborne Telescopes, Stellar Luminosity, Variable Stars, Classifications, Esa Satellites, Stellar Magnitude, Stellar Parallax, Stellar Rotation

Scientific paper

The use of Hipparcos satellite trigonometric parallaxes to derive luminosity values of objects in the lower instability strip of the HR diagram is discussed. Data can be used to distinguish between variable and nonvariable normal stars. Distinctions which rely on rotational velocity, metalliscism, and luminosity derived from photometry produce results in only 60% of cases. Often, e.g., for delta Scuti stars, results are negated because the assumed similarity with stars used for calibration is not valid.

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