Simultaneous spectroscopic and photometric observations of the $beta$ cephei star HR 6684
Journal Article
·
· Publ. Astron. Soc. Pac., v. 87, no. 518, pp. 595-598
OSTI ID:4189103
We have obtained simultaneous radial velocity observations and differential magnitude observations of the $beta$ Cep star HR 6684. The full amplitude of the velocity curve is 18 km sec$sup -1$ and the range in blue light is 0.033m. The ratio of these values is 550 km sec$sup -1$ mag$sup -1$ and maximum light falls at minimum radius. In these respects, HR 6684 is similar to other $beta$ Cep stars. There is some evidence for a beat effect. The spectral lines are sharp ($nu$ sin i = 110 km sec$sup -1$) and appear to vary in their profiles. (auth)
- Research Organization:
- Univ. of Toronto
- NSA Number:
- NSA-33-001528
- OSTI ID:
- 4189103
- Journal Information:
- Publ. Astron. Soc. Pac., v. 87, no. 518, pp. 595-598, Journal Name: Publ. Astron. Soc. Pac., v. 87, no. 518, pp. 595-598; ISSN PASPA
- Country of Publication:
- United States
- Language:
- English
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