A new discussion on the M(v) - W(O I 7774 A) relationship for F-G stars in the light of high-resolution data

Details A new discussion on the M(v) - W(O I 7774 A) relationship for F-G stars in the light of high-resolution data A new discussion on the M(v) - W(O I 7774 A) relationship for F-G stars in the light of high-resolution data

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250....1a&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, May 1, 1991, p. 1-6.

Other

15

F Stars, G Stars, Oxygen Spectra, Spectral Line Width, Stellar Luminosity, Stellar Spectra, B Stars, Calibrating, O Stars, Stellar Temperature, Visible Spectrum

Scientific paper

High-resolution CCD data and a large group of F-G stars of fundamentally determined distances are used here to investigate the intrinsic nature of the M(v) - W(O I) relation and the effect of other atmospheric parameters on this relation. The M(v) - W(O I) relation is not linear in the absolute magnitude range -10 to +21. Introduction of the (b - y)0 color index to represent stellar temperature leads to a calibration of the M(v) - W(O I) - (b-y)0 relationship in the above M(v) range, which can serve as a valuable tool to determine M(v) for F-G field stars. No systematic effect of the turbulent velocity on the calibration is found.

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