Abstract:
We present the results on the age and metallicity estimates of 11 Small Magellanic Cloud (SMC) clusters obtained from CCD Washington CT1T2 photometry. The 11 clusters reproduce the ~2Gyr bursting formation paradigm when entering them into the age-metallicity relationship (AMR). Once these clusters were added to the largest known SMC cluster sample with ages and metallicities put into an homogeneous scale, we found that a comprehensive picture of the cluster AMR can be obtained, which includes the following components: two enhanced formation processes at t~ 2 and 5-6Gyr, which have taken place throughout the entire body of the galaxy; the absent of a metallicity gradient and a relative spread in metallicity for clusters older than ~7Gyr. Furthermore, such picture should not significantly change due to incompleteness in the number of studied clusters. Indeed, based on the statistics of catalogued and studied clusters, we found that a total of seven relatively old/old clusters have not yet studied, and even a smaller number is obtained if the cluster spatial distribution is considered. © 2011 The Author Monthly Notices of the Royal Astronomical Society © 2011 RAS.
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Citas:
---------- APA ----------
(2011)
. Towards a comprehensive picture of the star cluster age-metallicity relationship in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society: Letters, 418(1), L69-L73.
http://dx.doi.org/10.1111/j.1745-3933.2011.01145.x---------- CHICAGO ----------
Piatti, A.E.
"Towards a comprehensive picture of the star cluster age-metallicity relationship in the Small Magellanic Cloud"
. Monthly Notices of the Royal Astronomical Society: Letters 418, no. 1
(2011) : L69-L73.
http://dx.doi.org/10.1111/j.1745-3933.2011.01145.x---------- MLA ----------
Piatti, A.E.
"Towards a comprehensive picture of the star cluster age-metallicity relationship in the Small Magellanic Cloud"
. Monthly Notices of the Royal Astronomical Society: Letters, vol. 418, no. 1, 2011, pp. L69-L73.
http://dx.doi.org/10.1111/j.1745-3933.2011.01145.x---------- VANCOUVER ----------
Piatti, A.E. Towards a comprehensive picture of the star cluster age-metallicity relationship in the Small Magellanic Cloud. Mon. Not. R. Astron. Soc. Lett. 2011;418(1):L69-L73.
http://dx.doi.org/10.1111/j.1745-3933.2011.01145.x
