The occultation of 119 Tauri and the effective temperatures of three M supergiants
1980; IOP Publishing; Volume: 242; Linguagem: Inglês
10.1086/158501
ISSN1538-4357
Autores Tópico(s)Astronomical and nuclear sciences
Resumoview Abstract Citations (49) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The occultation of 119 Tau and the effective temperatures of 3 M supergiants. White, N. M. Abstract The angular diameter of 119 Tauri has been measured in three colors by lunar occultation, and it is used to derive the effective temperature and linear radius of this M2.2 Iab/-/ type star. These values are compared with those calculated for two stars of similar spectral type alpha Orionis and alpha Scorpii. Consistent results are obtained for the three stars and with recent model-atmosphere effective temperatures if alpha Orionis is assumed to have a variable photospheric diameter and if an empirical correction for the possible effects of circumstellar clouds is applied to the three stars. New mean spectral types and near-infrared photometry are given. Publication: The Astrophysical Journal Pub Date: December 1980 DOI: 10.1086/158501 Bibcode: 1980ApJ...242..646W Keywords: Astrometry; Diameters; Lunar Occultation; M Stars; Stellar Temperature; Supergiant Stars; Absorption Spectra; Infrared Photometry; Interstellar Extinction; Near Infrared Radiation; Photosphere; Radiant Flux Density; Stellar Atmospheres; Stellar Envelopes; Stellar Spectrophotometry; Astrophysics full text sources ADS | data products SIMBAD (3)
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