Determining Hβ Color Indices for 23 δ Scuti Variable Stars

Details Determining Hβ Color Indices for 23 δ Scuti Variable Stars Determining Hβ Color Indices for 23 δ Scuti Variable Stars

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560619b&link_type=abstract

American Astronomical Society, AAS Meeting #215, #606.19; Bulletin of the American Astronomical Society, Vol. 36, p.1133

Astronomy and Astrophysics

Astrophysics

Scientific paper

Color index is a fundamental characteristic in the study of δ Scuti variable stars. The then comprehensive catalog of δ Scutis compiled by Rodriguez et al. (Rodriguez, E. Lopez Gonzalez, M. J., & Lopez de Coca, P. 2000, A&AS, 144, 469) contains 636 δ Scuti stars and several characteristics of these stars, including Hβ color index. Of the 417 stars in this catalog brighter than 13th magnitude, about 20% of them are missing Hβ color index values. We present 23 of these previously unpublished values, calculated from a calibration relation using spectroscopic observations obtained at the Dominion Astrophysical Observatory of 167 δ Scuti stars north of -01 degrees declination and brighter than 13th magnitude.

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