THE PERIOD CHANGE OF THE CEPHEID POLARIS SUGGESTS ENHANCED MASS LOSS

Hilding Raymond Neilson; Scott G. Engle; Ed Guinan; Norbert Langer; Richard Wasatonic; David Brian Williams

DOI:10.1088/2041-8205/745/2/L32

Corpus ID: 118625176

THE PERIOD CHANGE OF THE CEPHEID POLARIS SUGGESTS ENHANCED MASS LOSS

@inproceedings{Neilson2012THEPC,
  title={THE PERIOD CHANGE OF THE CEPHEID POLARIS SUGGESTS ENHANCED MASS LOSS},
  author={Hilding Raymond Neilson and Scott G. Engle and Ed Guinan and Norbert Langer and Richard Wasatonic and David Brian Williams},
  year={2012}
}

Hilding Raymond Neilson, Scott G. Engle, +3 authors David Brian Williams

Published 2012

Physics

Polaris is one of the most observed stars in the night sky, with recorded observations spanning more than 200 years. From these observations, one can study the real-time evolution of Polaris via the secular rate of change of the pulsation period. However, the measurements of the rate of period change do not agree with predictions from state-of-the-art stellar evolution models. We show that this may imply that Polaris is currently losing mass at a rate of yr–1 based on the difference between… CONTINUE READING

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