Bibcode
Vallenari, A.; Chiosi, C.; Bertelli, G.; Aparicio, A.; Ortolani, S.
Referencia bibliográfica
Astronomy and Astrophysics, v.309, p.367-374
Fecha de publicación:
5
1996
Revista
Número de citas
47
Número de citas referidas
40
Descripción
In this paper we present the BV-CCD photometry of three stellar fields
of the Large Magellanic Cloud (LMC). They are taken at the center of
V-charts of the Hodge & Wright (1967) catalog after which they are
named. The fields under examination are LMC-30 (2degNorth-West of the
Bar), LMC-45 ( 2degNorth of the Bar) and LMC-61 ( 3degNorth-East of the
Bar). Their color-magnitude diagrams (CMD) and luminosity functions (LF)
are studied using the R-method of Bertelli et al. (1992) with the aim of
reconstructing the past history of star formation in these regions. We
find that the bulk of star formation took place at different epochs in
the three regions: about 2Gyr ago in LMC-30, about 2.5Gyr ago in LMC-45,
and about 4Gyr ago in LMC-61. These results are combined with those
obtained by Bertelli et al. (1992) and Vallenari et al. (1995) for other
areas of the LMC and a preliminary cartography of the star formation
history across the LMC is attempted.