Photoelectric two-dimensional spectral classification of M supergiants

Details Photoelectric two-dimensional spectral classification of M supergiants Photoelectric two-dimensional spectral classification of M supergiants

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222..209w&link_type=abstract

Astrophysical Journal, Part 1, vol. 222, May 15, 1978, p. 209-219.

Astronomy and Astrophysics

Astrophysics

84

Electrophotometry, M Stars, Stellar Spectra, Stellar Spectrophotometry, Supergiant Stars, Astronomical Catalogs, Infrared Radiation, Interstellar Extinction, Late Stars, Stellar Luminosity, Titanium Oxides, Vanadium Oxides

Scientific paper

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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