The Star-Formation History in the Vicinity of NGC 1866 in the Large Magellanic Cloud

Astronomy and Astrophysics – Astronomy

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Magelanic Clouds, Stars: Formation, Galaxies: Stellar Content

Scientific paper

To expand on the recent single WFPC2 field obtained in the vicinity of this cluster, we have measured the luminosity function in a one-third by one-half degree field in the LMC with the 40 inch telescope at Siding Spring Observator. Combining our results with recent 4-meter and WFPC2 observations, we examine the constraints on the star formation history of the field from 10^8 to 10^10 years ago. The simple model derived from the WFPC2 data with and increase in the star formation rate ~3 Gyrs ago fits the combined data. However, this rate increase seems to have been unique. This event notwithstanding, the smooth luminosity function from V = 16 to V = 22 suggests steady star formation rather than a star formation history dominated by intense bursts. (SECTION: Galaxies)

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