Open clusters in the third galactic quadrant I. Photometry

Authors
Citation
A. Moitinho, Open clusters in the third galactic quadrant I. Photometry, ASTRON ASTR, 370(2), 2001, pp. 436-446
Citations number
55
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
0004-6361 → ACNP
Volume
370
Issue
2
Year of publication
2001
Pages
436 - 446
Database
ISI
SICI code
0004-6361(200105)370:2<436:OCITTG>2.0.ZU;2-#
Abstract
We have performed a photometric survey of open clusters in the third Galact ic quadrant in order to study the star formation history and spatial struct ure in the Canis Major-Puppis-Vela region. In this paper we describe a cata logue of CCD UBVRI photometry of approximately 65 000 stars in the fields o f 30 open clusters. The data were obtained and reduced using the same teles cope, the same reduction procedures, and the same standard photometric syst em, which makes this catalogue the largest homogeneous source of open clust er photometry so far. In subsequent papers of this series, colour-colour an d colour-magnitude diagrams will be presented which, amongst other uses, wi ll allow the determination of an homogeneous set of cluster reddenings, dis tances, and ages that will constitute the observational basis for our studi es of the spatial structure and star formation history in the third Galacti c quadrant.