Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001arep...45..711l&link_type=abstract
Astronomy Reports, vol. 45, Issue 9, p.711-717
Astronomy and Astrophysics
Astronomy
2
Scientific paper
Hipparcos trigonometric parallaxes and observational data for open clusters are used to determine the absolute magnitudes M V of O and B stars of various spectral subtypes and luminosity classes, including those with broadened lines and hydrogen emission lines. The same data are used to derive a relation between M V and the index β of the Strömgren photometric system. The resulting calibrations and the spectroscopic-parallax method are used to determine the distances to young open clusters.
Beshenov G. V.
Loktin A. V.
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