MKm spectral classifications for 37 weak-line stars and their testing of a Stromgren photometry survey

Details MKm spectral classifications for 37 weak-line stars and their testing of a Stromgren photometry survey MKm spectral classifications for 37 weak-line stars and their testing of a Stromgren photometry survey

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94..161c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 94, July 1987, p. 161-168.

Astronomy and Astrophysics

Astronomy

8

Abundance, Line Spectra, Spectrum Analysis, Stellar Spectra, Stellar Spectrophotometry, Ubv Spectra, Mass To Light Ratios, Metallicity, Milky Way Galaxy, Stellar Temperature

Scientific paper

Houk's extension of the MK system has been continued as an interim expediency for classifying stars with metal abundances greater or less than the solar abundance. These classifications ("MKm") were related to the initial results of a uvby survey for intermediate and extreme Population II stars at high galactic latitudes and with 13 < V < 16 mag. The survey is found to have a 91% success rate of identifying metal-weak stars. The photometrically derived [Fe/H] values are used to calibrate the metallicity indices produced by the classifications, yielding [Fe/H] = 0.13 Δmet-H - 0.26.

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