Empirical effective temperatures and bolometric corrections for early-type stars

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Bolometers, Early Stars, Radiant Flux Density, Spectral Energy Distribution, Stellar Spectrophotometry, Stellar Temperature, Astronomical Catalogs, Infrared Spectroscopy, Oao 2, Stellar Atmospheres, Stellar Luminosity, Stellar Structure, Ultraviolet Spectroscopy

Scientific paper

An empirical effective temperature for a star can be found by measuring its apparent angular diameter and absolute flux distribution. The angular diameters of 32 bright stars in the spectral range O5f to F8 have recently been measured with the stellar interferometer at Narrabri Observatory, and their absolute flux distributions have been found by combining observations of ultraviolet flux from the Orbiting Astronomical Observatory (OAO-2) with ground-based photometry. In this paper, these data have been combined to derive empirical effective temperatures and bolometric corrections for these 32 stars.

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