Spectral Type and Radial Velocity Variations in Three SRC Variables

  title={Spectral Type and Radial Velocity Variations in Three SRC Variables},
  author={K. E. Moncrieff and D. Turner and C. Short and P. Bennett and D. Balam and R. Griffin},
  journal={arXiv: Solar and Stellar Astrophysics},
  • K. E. Moncrieff, D. Turner, +3 authors R. Griffin
  • Published 2010
  • Physics
  • arXiv: Solar and Stellar Astrophysics
  • SRC variables are M supergiants, precursors to Type II supernovae, that vary in brightness with moderately regular periods of order 100-1000 days. Although identified as pulsating stars that obey their own period-luminosity relation, few have been examined in enough detail to follow the temperature and spectral changes that they undergo during their long cycles. The present study examines such changes for several SRC variables revealed by CCD spectra obtained at the Dominion Astrophysical… CONTINUE READING
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