The radius and other fundamental parameters of the F9 V star beta Virginis

Abstract

We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of the F9 V star beta Virginis. After correcting for limb darkening and combining with the revised Hipparcos parallax, we derive a radius of 1.703 +/- 0.022 R_sun (1.3%). 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%). We also derived the luminosity of beta Vir to be L = 3.51 +/- 0.08 L_sun (2.1%). Solar-like oscillations were measured in this star by Carrier et al. (2005) and using their value for the large frequency separation yields the mean stellar density with an uncertainty of about 2%. Our constraints on the fundamental parameters of beta Vir will be important to test theoretical models of this star and its oscillations.

arXiv commentaccepted for publication in MNRAS. Updated references

References in corpus (21)

• MILES: A Medium resolution INT Library of Empirical Spectra
• Solar Models: current epoch and time dependences, neutrinos, and helioseismological properties
• ADIPLS -- the Aarhus adiabatic oscillation package
• Correcting stellar oscillation frequencies for near-surface effects
• S4N: A Spectroscopic Survey of Stars in the Solar Neighborhood
• Debris disks around Sun-like stars
• Detection Limits from the McDonald Observatory Planet Search Program
• ASTEC -- the Aarhus STellar Evolution Code
• Asteroseismology and Interferometry
• Lithium Abundances of the Local Thin Disk Stars
• Lithium abundances for 185 main-sequence stars - Galactic evolution and stellar depletion of lithium
• High precision effective temperatures for 181 F--K dwarfs from line-depth ratios
• The complementary roles of interferometry and asteroseismology in determining the mass of solar-type stars
• Inclusion of turbulence in solar modeling
• p-mode frequencies in solar-like stars : I. Procyon A
• Orbital Solution & Fundamental Parameters of sigma Scorpii
• Solar-like oscillations in the F9 V beta Virginis
• On the determination of oxygen abundances in chromospherically active stars
• Modeling beta Virginis using seismological data
• The Sydney University Stellar Interferometer: A Major Upgrade to Spectral Coverage and Performance
• The Emergent Flux and Effective Temperature of Delta Canis Majoris

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