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The Star Formation History of the Magellanic Clouds: Latest Results

  • M. Koleva, Ph. Prugniel, I. Vauglin, M. Monelli (a1) (a2), R. Carrera (a1) (a2), C. Gallart (a1) (a2), I. Meschin (a1) (a2), A. Aparicio (a1) (a2), S.L. Hidalgo (a1) (a2), G. Bono (a3), P.B. Stetson (a4) and A.R. Walker (a5)...

Abstract

We present new results of a long-term investigation of the stellar content of the Large and the Small Magellanic Cloud. The main aim of the project is to obtain a comprehensive knowledge of the star formation history of these two nearby galaxies. Here we discuss the latest findings obtained using new data and a variety of different observational approaches, based on wide-field ground-based photometry and low-resolution CaT spectra. We find evidence of two main star formation events across the LMC disk. We also found evidence that the young and intermediate age population (<5 Gyr) presents a steeper gradient with radius than the old one (>8 Gyr). In particular, the young (<2 Gyr) component seems to extend to 8 degrees from the center, distance at which it decreases abruptly. At larger distance, the old population dominates, extending to at least 13.5 kpc. We also report the discovery of a population of stars located across the Magellanic Bridge, compatible with the old population of the LMC.

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The Star Formation History of the Magellanic Clouds: Latest Results

  • M. Koleva, Ph. Prugniel, I. Vauglin, M. Monelli (a1) (a2), R. Carrera (a1) (a2), C. Gallart (a1) (a2), I. Meschin (a1) (a2), A. Aparicio (a1) (a2), S.L. Hidalgo (a1) (a2), G. Bono (a3), P.B. Stetson (a4) and A.R. Walker (a5)...

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