Stromgren and H photometry of OB associations and open clusters - I. ARA OB1

Autor:	Nadia Kaltcheva, Leonid Georgiev
Rok vydání:	1992
Předmět:	Absolute magnitude Physics Hertzsprung–Russell diagram Astronomy Astronomy and Astrophysics Astrophysics Stars Distance modulus symbols.namesake Apparent magnitude Wolf–Rayet star Space and Planetary Science symbols Open cluster O-type star
Zdroj:	Monthly Notices of the Royal Astronomical Society. 259:166-174
ISSN:	1365-2966 0035-8711
Popis:	Stromgren and Hβ photometry of 38 stars in the field of Ara OB 1 is presented. The excesses, the absolute magnitudes and the temperatures of the stars have been obtained. The masses and the ages are also estimated, based on the models of Maeder & Meynet (1988, A&AS, 76). Two different groups have been distinguished by their space locations at V 0 −M V = 10.23 and 12.01 mag (assuming a normal extinction law). The more distant group is younger and more massive. The magnitude and the excess of the WR star MR62 point to its probable membership of this group
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3718dad02efe91f44b6f9e46c2b17831 https://doi.org/10.1093/mnras/259.1.166 Zobrazit plný text záznamu