English

Frequency and spectrum analysis of $\gamma$ Doradus type Kepler target KIC 6462033

Solar and Stellar Astrophysics 2014-01-10 v1

Abstract

We present results of an asteroseismic study on the γ\gamma Dor type {\it Kepler} target KIC\,6462033. {\it Kepler} photometry is used to derive the frequency content and principal modes. High-dispersion ground-based spectroscopy is also carried out in order to determine the atmospheric parameters and projected rotational velocity. From an analysis of the {\it Kepler} long cadence time series, we find that the light curve of KIC\,6462033 is dominated by three modes with frequencies f1f_{1}=0.92527, f2f_{2}=2.03656 and f3f_{3}=1.42972 d1^{-1} as well as we detect more than a few hundreds of combination terms. However, two other independent frequencies appear to have lower amplitudes in addition to these three dominant terms. No significant peaks are detected in the region >> 5 d1^{-1}. We therefore confirm that KIC\,6462033 pulsates in the frequency range of γ\gamma Dor type variables, and a future study will allow us to investigate modal behaviour in this star.

Keywords

Cite

@article{arxiv.1401.1964,
  title  = {Frequency and spectrum analysis of $\gamma$ Doradus type Kepler target KIC 6462033},
  author = {C. Ulusoy and I. Stateva and I. Kh. Iliev and B. Ulaş},
  journal= {arXiv preprint arXiv:1401.1964},
  year   = {2014}
}

Comments

14 pages, 3 figures, 1 Table. Accepted for publication in New Astronomy