PRECISE RADIAL VELOCITIES OF POLARIS: DETECTION OF AMPLITUDE GROWTH

@article{Lee2008PRECISERV,
  title={PRECISE RADIAL VELOCITIES OF POLARIS: DETECTION OF AMPLITUDE GROWTH},
  author={B. Lee and D. Mkrtichian and I. Han and M. Park and Kang-Min Kim},
  journal={The Astronomical Journal},
  year={2008},
  volume={135},
  pages={2240-2244}
}
We present the first results of a long-term program of a radial velocity (RV) study of Cepheid Polaris (F7 Ib), with the aim of finding the amplitude and period of its pulsations and the nature of its secondary periodicities. A total of 264 new precise RV measurements were obtained during 2004-2007 with the fiber-fed echelle spectrograph Bohyunsan Observatory Echelle Spectrograph (BOES) of the 1.8 m telescope at Bohyunsan Optical Astronomy Observatory (BOAO) in Korea. We find a pulsational RV… Expand
16 Citations

Figures and Tables from this paper

Detection of an exoplanet around the evolved K giant HD 66141
  • 7
  • Highly Influenced
  • PDF
Probing Polaris’ puzzling radial velocity signals: Pulsational (in-)stability, orbital motion, and bisector variations
  • 2
  • Highly Influenced
  • PDF
Planetary Companion in K Giant σ Persei
  • 7
  • PDF
Planetary companion in K giant Sigma Persei
  • PDF
The Pulsation Mode of the Cepheid Polaris
  • 12
  • PDF
Evolutionary status of Polaris
  • 16
  • PDF
LONG-PERIOD VARIATIONS IN THE RADIAL VELOCITY OF SPECTROSCOPIC BINARY M GIANT μ URSAE MAJORIS
  • 4
  • PDF
POLARIS: HISTORY OF PULSATION ACTIVITY SINCE DISCOVERY
  • Highly Influenced
  • PDF
...
1
2
...

References

SHOWING 1-10 OF 14 REFERENCES
The Radial Velocity and Spectral Line Bisector Variability of Polaris
  • 28
  • Highly Influential
The period changes of polaris
  • 31
  • Highly Influential
The radial-velocity variations of Polaris - A Cepheid leaving the instability strip
  • 16
  • Highly Influential
Astrophysical Quantities of Cepheid Variables Measured with the Navy Prototype Optical Interferometer
  • 36
  • Highly Influential
ATTAINING DOPPLER PRECISION OF 3 M S-1
  • 766
The BOES Spectropolarimeter for Zeeman Measurements of Stellar Magnetic Fields
  • 68
  • PDF
A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars
  • 31
  • Highly Influential
  • PDF
The Iraf Data Reduction And Analysis System
  • D. Tody
  • Engineering, Computer Science
  • Astronomical Telescopes and Instrumentation
  • 1986
  • 716
  • PDF
Period04 User Guide
  • 617
  • PDF
...
1
2
...