Sixty four nights of UBV photometry of early-type stars at La Silla

作者：Mayer P^*; Bozic H; Lorenz R; Drechsel H

来源：Astronomische Nachrichten, 2010, 331(3): 274-281.

DOI：10.1002/asna.200911303

• binaries: eclipsing
• stars: early type
• stars: individual (MY Ser, V871 Cen, V1051 Cen)
• techniques: photometric

UBV measurements of early-type stars, mostly eclipsing binaries, obtained at La Silla in the years 1990 to 1994 with the ESO 50 cm telescope are presented. Most of these data were already used in our individual studies of several binaries. Now all photometric measurements were reduced again with an advanced technique and are made available electronically. Our data for MY Ser have not yet been published; new light curve is given and solved. The result is that MY Ser is a contact binary, with very large fill-out parameter. Also a light curve and its solution for V1051 Cen are provided, and the problem of the period of V871 Cen is pointed out. Besides binaries (and the comparison and check stars) data for several stars in southern H II regions are included. Extinction and transformation coefficients are given.

• 出版日期2010-3