Document Type
Article
Publication Date
10-1-1999
Abstract
We present BV photometry and simultaneous high-resolution, high signal-to-noise ratio spectroscopy of the newly-discovered γ Doradus variable HR 8330 taken during the 1997 and 1998 observing seasons. We calculate power spectra for the B- and V-band data sets and for the time series defined throughout the observing season at each point across the Fe iiλ4508.289 and the Ti iiλ4501.278 line profiles to search for periodic variability. Period analysis reveals a single, 2.6-d period in both the photometric and the spectroscopic data, with a 237° phase lag between them. Based on the location of HR 8330 in the HR diagram and the characteristics of its photometric and spectroscopic variations, we conclude that HR 8330 is a bona fide γ Doradus-type pulsating variable.
Recommended Citation
Anthony B. Kaye, Gregory W. Henry, Francis C. Fekel, Douglas S. Hall, Simultaneous photometry and spectroscopy of the newly discovered γ Doradus variable HR 8330=HD 207223, Monthly Notices of the Royal Astronomical Society, Volume 308, Issue 4, October 1999, Pages 1081–1086, https://doi.org/10.1046/j.1365-8711.1999.02768.x