INVESTIGADORES
PIATTI Andres Eduardo
artículos
Título:
CCD SDSS gr photometry of poorly studied LMC star clusters
Autor/es:
A.E. PIATTI
Revista:
Bol. Asociación Argentina de Astronomía
Editorial:
BAAA
Referencias:
Año: 2013 vol. 56 p. 269 - 272
ISSN:
1669-9521
Resumen:
We present results based on CCD SDSS gr photometry ofa handful of Large Magellanic Cloud star clusters, namely: SL 127, 174,676, 679, 819, and 866. The g magnitudes and g − r colours were derivedfrom PSF photometry on images obtained at the Gemini South telescopeand the GMOS attached, once they were reduced for the instrumentalsignature. The instrumental magnitudes were converted into the standardones by using the transformation equations and the coefficients derivedfrom measures of standard stars. The resulting cluster colour-magnitudediagrams were used to estimate the clusters? ages and metallicities fromisochrone fittings, as well as, to find out any pattern of extended MainSequence turnoff.
