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A Preliminary Test of the Calibration of the Hβ System in Terms of Absolute Magnitudes and Intrinsic Colours for Early-Type Stars
Published online by Cambridge University Press: 07 February 2017
Abstract
The dependency of the Hβ-index on two physical parameters is briefly discussed. The previous calibration of Mv(β) (Fernie, 1965 or Crawford, 1971) is confirmed for main sequence O and B stars; however, the β-values of the later B-supergiants tend to be too large for their absolute magnitudes. The problem of filtering out stars with marginal emission is emphasized.
- Type
- Part IV: Absolute Magnitude Determinations from Hydrogen-Line Photometry
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- Copyright
- Copyright © Reidel 1973