Angular Diameters and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer

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...

Full description

Saved in:
Bibliographic Details
Published in:The Astronomical journal 2021-11, Vol.162 (5), p.198
Main Authors: Baines, Ellyn K., Thomas Armstrong, J., Clark, James H., Gorney, Jim, Hutter, Donald J., Jorgensen, Anders M., Kyte, Casey, Mozurkewich, David, Nisley, Ishara, Sanborn, Jason, Schmitt, Henrique R., van Belle, Gerard T.
Format: Article
Language:English
Subjects:
Astronomy
Diameters
Fundamental parameters of stars
Giant stars
High angular resolution
Interferometers
Luminosity
Navy
Optical interferometry
Spectral classification
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0004-6256
1538-3881
DOI:10.3847/1538-3881/ac2431