UB stellar photometry around the association OB81 in M31: new OB associations

Details UB stellar photometry around the association OB81 in M31: new OB associations UB stellar photometry around the association OB81 in M31: new OB associations

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pobeo..73..163k&link_type=abstract

Publications of the Astronomical Observatory of Belgrade (ISSN 0373-3742), No. 73, p. 163 - 166 (2002). In: Proceedings of the T

Mathematics

Logic

Ob Associations, Stellar Photometry

Scientific paper

We present UB stellar photometry in a field centered on the stellar complex OB81 in the Southern part of the Andromeda galaxy. We investigate the stellar content of this area. The automatized search for OB associations was carried out using the friend-of-friends algorithm of Battinelli (1991). The van den Bergh's "association" OB81 practically covers the substantial part of the spiral arm. The "new" associations have smaller sizes and look like bright cores within this "association". The mean size of 89±11 pc is comparable with the mean size of the OB associations in LMC - 60pc, SMC - 70pc and M33 - 60pc, confirming the idea that the size of the associations does not depend on the morphological type of the galaxy.

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