The H -Absolute Magnitude Calibration
Open Access
- 1 January 1974
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 166 (1) , 203-217
- https://doi.org/10.1093/mnras/166.1.203
Abstract
A new calibration is given relating the equivalent width of H γ to the absolute magnitude of the star. With the exception of the O stars, the earlier calibration given by Petrie is essentially confirmed. The calibration of the MK system based on the new calibration is significantly different in some regions from that tabulated by Blaauw, but in excellent agreement with that recently published by Walborn.Keywords
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