Radii and Effective Temperatures of Giant and Supergiant Stars as Measured at PTI. II

Details Radii and Effective Temperatures of Giant and Supergiant Stars as Measured at PTI. II Radii and Effective Temperatures of Giant and Supergiant Stars as Measured at PTI. II

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.6712v&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #67.12; Bulletin of the American Astronomical Society, Vol. 30, p.919

Astronomy and Astrophysics

Astronomy

Scientific paper

The continuing investigation of diameters of luminosity class I, II and III objects at the Palomar Testbed Interferometer (PTI) is yielding further results on linear diameters (R) and effective temperatures (T) for these stars. Spectral types G, K and M are well-represented in the observed sample of over 100 stars, in addition to a few stars of earlier spectral type. Empirical relationships between R, T and spectral type, V-K and K-[12] are presented; implications of departures of T from black-body behavior are discussed. Further parameterizations of the empirical relationships involving surface gravity and metallicity are also presented.

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