Poster Title: NGC1705: a post-starburst galaxy already back to activity.
Abstract: The star formation history in different regions of the blue compact dwarf galaxy NGC1705 has been inferred by comparing synthetic color-magnitude diagrams with HST optical and near infrared photometry. We find that NGC1705 is not a young galaxy, since it has started forming stars at least 5 Gyr ago. On the other hand, we confirm the existence of a recent burst of star formation between 15 and 10 Myr ago and find evidence for a new strong activity started 3 Myr ago and still ongoing. The rate of this young burst (0.3 M_sun/yr) is higher than derived in other dwarfs and only comparable to that of NGC1569.
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