Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope

@article{Evans2005DirectDO,
  title={Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope},
  author={N. Evans and G. Schaefer and H. Bond and G. Bono and M. Karovska and E. Nelan and D. Sasselov and B. Mason},
  journal={The Astronomical Journal},
  year={2005},
  volume={136},
  pages={1137-1146}
}
Polaris, the nearest and brightest classical Cepheid, is a single-lined spectroscopic binary with an orbital period of 30 yr. Using the High Resolution Channel of the Advanced Camera for Surveys on board the Hubble Space Telescope (HST) at a wavelength of ~2255 A, we have directly detected the faint companion at a separation of 017. A second HST observation 1.04 yr later confirms orbital motion in a retrograde direction. By combining our two measures with the spectroscopic orbit of Kamper and… Expand
42 Citations
Hubble Space Telescope: Snapshot Survey for Resolved Companions of Galactic Cepheids
  • 8
  • PDF
Hubble Space Telescope Trigonometric Parallax of Polaris B, Companion of the Nearest Cepheid
  • 9
  • PDF
The Mass of the Cepheid V350 Sgr
  • 5
  • PDF
Homing in on Polaris: A 7 M⊙ first-overtone Cepheid entering the instability strip for the first time
  • 8
  • Highly Influenced
  • PDF
Binary Cepheids from optical interferometry
  • 4
  • Highly Influenced
  • PDF
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 32 REFERENCES
A search for the binary companion of Polaris
  • 3
Extended envelopes around Galactic Cepheids. II. Polaris and delta Cephei from near-infrared interfe
  • 61
  • PDF
Cepheid parallaxes and the Hubble constant
  • 162
  • Highly Influential
  • PDF
The period changes of polaris
  • 31
  • Highly Influential
On the Pulsation Mode Identification of Short-Period Galactic Cepheids
  • 18
  • PDF
Cepheid Masses: FUSE Observations of S Muscae
  • 15
  • PDF
Pulsation and Evolutionary Masses of Classical Cepheids. I. Milky Way Variables
  • 65
  • PDF
...
1
2
3
4
...