Line Strengths for Southern OB stars--II: Observations with Moderate Dispersion
Open Access
- 1 May 1969
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 144 (1) , 31-39
- https://doi.org/10.1093/mnras/144.1.31
Abstract
From microphotometer tracings of prismatic spectrograms, the equivalent widths and central depths of H γ and H δ have been used to estimate the absolute visual magnitude for about 380 stars earlier than class A7, including over 60 class I supergiants. Similar data are also given for the helium singlet and triplet lines in the violet region for the O and B stars, and MK types are estimated.Keywords
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