Asteroseismology of the nearby SN-II Progenitor: Rigel. I. The MOST High-precision Photometry and Radial Velocity Monitoring

@article{Moravveji2012AsteroseismologyOT,
  title={Asteroseismology of the nearby SN-II Progenitor: Rigel. I. The MOST High-precision Photometry and Radial Velocity Monitoring},
  author={Ehsan Moravveji and Edward F. Guinan and Matthew E. Shultz and Michael H. Williamson and Andr{\'e}s Moya},
  journal={The Astrophysical Journal},
  year={2012},
  volume={747},
  pages={108-114}
}
Rigel ({beta} Ori, B8 Ia) is a nearby blue supergiant displaying {alpha} Cyg type variability, and is one of the nearest Type II supernova progenitors. As such it is an excellent test bed to study the internal structure of pre-core-collapse stars. In this study, for the first time, we present 28 days of high-precision MOST photometry and over six years of spectroscopic monitoring. We report 19 significant pulsation modes of signal-to-noise ratio, S/N {approx}> 4.6 from radial velocities, with… 

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