prikaz prve stranice dokumenta Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri
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Scientific paper - Original scientific paper
Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri
Astronomy and Astrophysics, 578 (2015); A25. https://doi.org/10.1051/0004-6361/201525873
Maxted, P. F. L.; Hutcheon, R. J.; Torres, G.; Lacy, C. H. S.; Southworth, J.; Smalley, B.; Pavlovski, Krešimir; Marchall, L. A.; Clausen, J. V.

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Maxted, P. F. L., Hutcheon, R. J., Torres, G., Lacy, C. H. S., Southworth, J., Smalley, B. ... Clausen, J. V. (2015). Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri. Astronomy and Astrophysics, 578.. doi: 10.1051/0004-6361/201525873

Maxted, P. F. L., et al. "Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri." Astronomy and Astrophysics, vol. 578, 2015. https://doi.org/10.1051/0004-6361/201525873

Maxted, P. F. L., R. J. Hutcheon, G. Torres, C. H. S. Lacy, J. Southworth, B. Smalley, Krešimir Pavlovski, L. A. Marchall and J. V. Clausen. "Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri." Astronomy and Astrophysics 578 (2015). https://doi.org/10.1051/0004-6361/201525873

Maxted, P. F. L., et al. (2015) 'Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri', Astronomy and Astrophysics, 578. doi: 10.1051/0004-6361/201525873

Maxted PFL, Hutcheon RJ, Torres G, Lacy CHS, Southworth J, Smalley B, and sur.. Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri. Astronomy and Astrophysics [Internet]. 2015 [cited 2024 July 16];578. doi: 10.1051/0004-6361/201525873

P. F. L. Maxted, et al., "Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri", Astronomy and Astrophysics, vol. 578, 2015. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:434137. [Accessed: 16 July 2024]

Metadata
Title (english)Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri
AuthorP. F. L. Maxted
AuthorR. J. Hutcheon
AuthorG. Torres
AuthorC. H. S. Lacy
AuthorJ. Southworth
AuthorB. Smalley
AuthorKrešimir Pavlovski
AuthorL. A. Marchall
AuthorJ. V. Clausen
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Astronomy and Astrophysics
Abstract (english)
Context. V1094 Tau is a bright eclipsing binary star with an orbital period close to nine days that contains two stars similar to the Sun. Aims. Our aim is to test models of Sun-like stars using precise and accurate mass and radius measurements for both stars in V1094 Tau. Methods. We present new spectroscopy of V1094 Tau, which we use to estimate the effective temperatures of both stars and to refine their spectroscopic orbits. We also present new, high-quality photometry covering both eclipses of V1094 Tau in the Strömgren uvby system and in the Johnson V-band. Results. The masses, radii, and effective temperatures of the stars in V1094 Tau are found to be M_A = 1.0965 ± 0.0040 M⊙, R_A = 1.4109 ± 0.0058 R⊙, T_eff, A = 5850 ± 100 K, M_B = 1.0120 ± 0.0028 M⊙, R_B = 1.1063 ± 0.0066 R⊙, and T_eff, B = 5700 ± 100 K. An analysis of the times of mid-eclipse and the radial velocity data reveals apsidal motion with a period of 14 500 ± 3700 years. Conclusions. The observed masses, radii, and effective temperatures are consistent with stellar models for an age ≈6 Gyr if the stars are assumed to have a metallicity similar to the Sun. This estimate is in reasonable agreement with our estimate of the metallicity derived using Strömgren photometry and treating the binary as a single star ([ Fe/H ] = −0.09 ± 0.11). The rotation velocities of the stars suggest that V1094 Tau is close to the limit at which tidal interactions between the stars force them to rotate pseudo-synchronously with the orbital motion.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleAstronomy and Astrophysics
Numberingvol. 578, A25
p-ISSN0004-6361
DOIhttps://doi.org/10.1051/0004-6361/201525873
URN:NBNurn:nbn:hr:217:434137
Publication2015
Document URLhttps://www.aanda.org/articles/aa/abs/2015/06/aa25873-15/aa25873-15.html
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© ESO 2015. Received 11 February 2015. Accepted 15 March 2015. Published online 27 May 2015.
Created on2020-01-11 19:32:19