A photometric study of three star fields in the southern region of M33 |
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Authors: | P Z Kunchev N S Nikolov |
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Institution: | (1) Department of Astronomy, University of Sofia, Bulgaria |
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Abstract: | The 2 m RCC telescope of the Rozhen National Observatory (Bulgaria) was used to obtain the colour-magnitude and colour-colour diagrams of OB110 and OB112 associations which form the largest star grouping in the southern region of M33. The stars withV andU 20.4 andB 21 were measured. TheV magnitude, the coloursB - V, U - B and the respective identification charts are given. This allowed to construct the luminosity function of OB110+OB112. The group has an integrated magnitudeM
VT=–11.8 which is by 0
m
.5 fainter than OB78 (M31). The mean absorption and the foreground were examined as well. |
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Keywords: | |
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