Angular Diameters and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer
Ellyn K. Baines, J. T. Armstrong, James H. Clark, Jim Gorney, D. J. Hutter, A. M. Jorgensen, Casey Kyte, David Mozurkewich, Ishara Nisley, Jason Sanborn, H. R. Schmitt, Gerald van Belle
Abstract
Abstract We measured the angular diameters of 44 stars with the Navy Precision Optical Interferometer, obtaining uncertainties on the limb-darkened diameter of 2% or less for all but four stars. We then used our diameters with Gaia or Hipparcos parallaxes to calculate each star’s physical radius. We gathered information from the literature to determine bolometric flux and luminosity, and combined that with our diameters to produce an effective temperature. Our sample consists of mostly giant stars, and spans a wide range of spectral classes from B to M.
Topics & Concepts
StarsPhysicsInterferometryAstronomical interferometerRADIUSAngular diameterLuminosityAstrophysicsStellar classificationEffective temperatureAstronomyOpticsComputer scienceGalaxyComputer securityStellar, planetary, and galactic studiesAdaptive optics and wavefront sensingAstronomy and Astrophysical Research