Five New δ Scuti Stars

Details Five New δ Scuti Stars Five New δ Scuti Stars

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasp..114..999h&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 114, Issue 799, pp. 999-1005.

Astronomy and Astrophysics

Astronomy

3

Stars: Variables: Δ Scuti, Stars: Early-Type, Stars: Fundamental Parameters, Stars: Oscillations

Scientific paper

We present high-resolution spectroscopy and precision photometry of five new, relatively bright δ Scuti stars. They were originally chosen as photometric comparison stars in our program of automated, high-precision photometry of solar-type stars and subsequently recognized as new variable stars. We conducted follow-up spectroscopic and photometric observations to determine the properties of the stars and their types of variability. All five of the stars presented here belong to the most common subgroup of low-amplitude, Population I δ Scuti variables. One of the stars, HD 10502, is the third example of a δ Scuti variable with composite broad and narrow spectroscopic line profiles suggesting the presence of a circumstellar shell or disk.

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