Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220l..11p&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 220, Feb. 15, 1978, p. L11-L14. NSF-supported research.
Astronomy and Astrophysics
Astrophysics
22
Eclipsing Binary Stars, Hot Stars, Main Sequence Stars, Stellar Mass, Bandwidth, Spectrographs, Stellar Luminosity, Stellar Spectra
Scientific paper
Masses of some hot main-sequence stars are reexamined on the basis of preliminary reduction of spectrographic material. Downward revisions are required of the published values for the most massive known main-sequence system, V382 Cyg, while published values for V453 Cyg and V478 Cyg require little revision. The large masses published for EO Aur are illusory, since the lines of the components are unresolved. The more massive hotter component of U Oph is also the more luminous, despite difficulties in interpreting some photometric observations.
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