Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...221..833m&link_type=abstract
Astrophysical Journal, Part 1, vol. 221, May 1, 1978, p. 833-850.
Astronomy and Astrophysics
Astrophysics
7
Astronomical Photometry, Early Stars, Interstellar Extinction, Multivariate Statistical Analysis, O Stars, Vector Spaces, Absorption Spectra, Electromagnetic Absorption, Interstellar Matter, Photosphere, Stellar Atmospheres
Scientific paper
A multivariate vector-space formulation of photometry is developed which accounts for error propagation. An analysis of uvby and H-beta photometry of O stars is presented, with attention given to observational errors, reddening, general uvby photometry, early stars, and models of O stars. The number of observable parameters in O-star continua is investigated, the way these quantities compare with model-atmosphere predictions is considered, and an interstellar reddening law is derived. It is suggested that photospheric expansion affects the formation of the continuum in at least some O stars.
Lillie Chuck F.
Massa Derck
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