Astrophysical parameters and template spectra of Magellanic Clouds’ star clusters
Event Timeslots (1)
Thursday 11th
-
Astrophysical parameters and template spectra of Magellanic Clouds’ star clusters
Flux-calibrated integrated spectra have been obtained for a sample of 10 Magellanic Clouds (MCs) star clusters (SCs) at the Complejo Astronómico El Leoncito (CASLEO, San Juan, Argentina). The astrophysical parameters (age, reddening values and metallicity) were simultaneously derived using methods like equivalent width measurements, the template matching method and through evolutionary synthesis models for simple stellar populations (SSPs) for each SC. No metallicity determinations have been previously performed for most of the SC’s sample here studied. Ages for two SCs are determined here for the first time too (NGC 1826 y SL 573). On the other hand, the SSPs for each SC is analyzed and the presence of multiple stellar populations (MPs) is found in NGC 1866 confirming previous reports, and MPs are found in other SCs too. Finally, new templates representing 20 Myr, (100-160) Myr and 3000 Myr stellar populations were created by SC's integrated spectra observed in this sample.