The width of the spectroscopically defined main-sequence

Details The width of the spectroscopically defined main-sequence The width of the spectroscopically defined main-sequence

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137..358j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 2, Aug. 1984, p. 358, 359.

Astronomy and Astrophysics

Astrophysics

6

Dwarf Stars, Hertzsprung-Russell Diagram, Main Sequence Stars, Star Clusters, Stellar Magnitude, Stellar Spectra, A Stars, Astrometry, F Stars, Open Clusters, Stellar Luminosity, Ubv Spectra

Scientific paper

It is recommended that star samples used for absolute magnitude calibration in the spectral range B9-F2 should not be selected by spectral classification only, but rather with some age criterium guaranteeing a higher resolution in the B-V, M(v) plane. A study of six open clusters with MK spectral classifications, UBV photometry, and known distance moduli shows that spectroscopically defined dwarf stars occupy an interval of about two magnitudes above the MS in the range of late B to early F-type stars.

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