BVRI-Photometry of the Brightest Stars in the Magellanic Clouds

Details BVRI-Photometry of the Brightest Stars in the Magellanic Clouds BVRI-Photometry of the Brightest Stars in the Magellanic Clouds

Nov 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970bott....5..269m&link_type=abstract

Boletín de los Observatorios de Tonantzintla y Tacubaya Vol. 5, pp. 269-292 (1970) (http://www.astroscu.unam.mx/~bott/)

Astronomy and Astrophysics

Astronomy

36

Photometry, Galaxies: Magellanic Clouds

Scientific paper

We have made photometric observations in the BVRI system of 100 objects that belong to the Magellanic Clouds. The observational data indicate at least two remarkable differences between some of the Magellanic Cloud objects and the supergiant stars in the Galaxy, namely, the former are more luminous than the most luminous galactic supergiants and they also have a color excess in V-R unexplained by interstellar extinction alone. Two possible explanations are likely for the additional color excess; either the presence of a circumstellar dust envelope or a different chemical atmospheric composition from galactic supergiant stars, or perhaps both of them.

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