THE PERIOD CHANGE OF THE CEPHEID POLARIS SUGGESTS ENHANCED MASS LOSS

@article{Neilson2012THEPC,
  title={THE PERIOD CHANGE OF THE CEPHEID POLARIS SUGGESTS ENHANCED MASS LOSS},
  author={H. Neilson and S. Engle and E. Guinan and N. Langer and R. Wasatonic and D. Williams},
  journal={The Astrophysical Journal},
  year={2012},
  volume={745}
}
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… Expand
29 Citations

Figures from this paper

CLASSICAL CEPHEIDS REQUIRE ENHANCED MASS LOSS
  • 25
  • PDF
Evolutionary status of Polaris
  • 16
  • PDF
Period Change and Stellar Evolution of β Cephei Stars
  • 10
  • PDF
Observations of Cepheids with the MOST satellite: contrast between pulsation modes
  • 35
  • PDF
Convection, granulation, and period jitter in classical Cepheids
  • 17
  • PDF
...
1
2
3
...

References

SHOWING 1-10 OF 27 REFERENCES
Cepheid Mass loss and the Pulsation-Evolutionary Mass Discrepancy
  • 43
  • PDF
The period changes of polaris
  • 31
  • Highly Influential
On the Enhancement of Mass Loss in Cepheids Due to Radial Pulsation
  • 59
  • PDF
The Cepheid mass discrepancy and pulsation-driven mass loss
  • 49
  • PDF
Polaris: Amplitude, Period Change, and Companions
  • 37
The period and amplitude changes of Polaris (α UMi) from 2003 to 2007 measured with SMEI
  • 26
  • Highly Influential
  • PDF
Extended envelopes around Galactic Cepheids. II. Polaris and delta Cephei from near-infrared interfe
  • 61
  • Highly Influential
  • PDF
Period changes of Cepheid variables
  • 33
  • Highly Influential
...
1
2
3
...