Line Strengths for Southern OB stars—II: Observations with Moderate Dispersion

Line Strengths for Southern OB stars—II: Observations with Moderate Dispersion

From microphotometer tracings of prismatic spectrograms, the equivalent widths and central depths of Hγ and Hδ 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...

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Veröffentlicht in:Mon. Notic. Roy. Astron. Soc., 144: 31-9(1969) 144: 31-9(1969), 1969-05, Vol.144 (1), p.31-39
1. Verfasser: Buscombe, W.
Format: Artikel
Sprache:eng
Schlagworte:
BALMER LINES
HELIUM
HYDROGEN
N32120 -Physics-Astrophysics-Stars
PHOTOMETRY
SPECTRA
STARS
STARS/spectral line strengths of southern OB, (E)
TEMPERATURE
WIDTH
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Beschreibung
Zusammenfassung:From microphotometer tracings of prismatic spectrograms, the equivalent widths and central depths of Hγ and Hδ 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.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/144.1.31