Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/137408
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- Title
- The Radius and other fundamental parameters of the F9 v star β Virginis
- Related
- Monthly notices of the Royal Astronomical Society, Vol. 393, No. 1, (2009), p.245-252
- DOI
- 10.1111/j.1365-2966.2008.14216.x
- Publisher
- Wiley
- Date
- 2009
- Author/Creator
- North, J. R
- Author/Creator
- Davis, J
- Author/Creator
- Stello, D
- Author/Creator
- Tango, W. J
- Author/Creator
- Tuthill, P. G
- Author/Creator
- Robertson, J. G
- Author/Creator
- Bedding, T. R
- Author/Creator
- Bruntt, H
- Author/Creator
- Ireland, M. J
- Author/Creator
- Jacob, A. P
- Author/Creator
- Lacour, S
- Author/Creator
- O'Byrne, J. W
- Author/Creator
- Owens, S.M
- Description
- We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of the F9 V star β Virginis (β Vir). After correcting for limb darkening and combining with the revised Hipparcos parallax, we der ive a radius of 1.703 ± 0.022 R⊙ (1.3 per cent). We have also calculated the bolometric flux from published measurements which, combined with the angular diameter, implies an effective temperature of 6059 ± 49 K (0.8 per cent). We also derived the luminosity of β Vir to be L = 3.51 ± 0.08 L⊙ (2.1 per cent). Solar-like oscillations were measured in this star by Carrier et al. and using their value for the large frequency separation yields the mean stellar density with an uncertainty of about 2 per cent. Our constraints on the fundamental parameters of β Vir will be important to test the theoretical models of this star and its oscillations.
- Description
- 8 page(s)
- Subject Keyword
- Fundamental parameters
- Subject Keyword
- Individual: β Vir
- Subject Keyword
- Techniques: interferometric
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Physics and Astronomy
- Identifier
- http://hdl.handle.net/1959.14/137408
- Identifier
- ISSN:0035-8711
- Identifier
- mq_res-ext-2-s2.0-58649090046
- Language
- eng
- Reviewed
