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Title:
Photoelectric two-dimensional spectral classification of M supergiants
Authors:
White, N. M.; Wing, R. F.
Affiliation:
AA(Lowell Observatory, Flagstaff, Ariz.)
Publication:
Astrophysical Journal, Part 1, vol. 222, May 15, 1978, p. 209-219. (ApJ Homepage)
Publication Date:
05/1978
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Electrophotometry, M Stars, Stellar Spectra, Stellar Spectrophotometry, Supergiant Stars, Astronomical Catalogs, Infrared Radiation, Interstellar Extinction, Late Stars, Stellar Luminosity, Titanium Oxides, Vanadium Oxides
DOI:
10.1086/156136
Bibliographic Code:
1978ApJ...222..209W

Abstract

A photoelectric system defined by eight narrow bands between 0.7 and 1.1 microns has been used to measure nearly all M supergiants that have been classified on the MK system. The photometric TiO and CN indices reproduce the two-dimensional MK classifications to the accuracy of the MK types themselves. Mean fluxes and spectral classifications are presented for 128 stars.

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arXiv e-prints