HST Observations of Young Star Clusters in Interacting Galaxies


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We present early results from the analysis of HST imaging observations for several pairs of interacting galaxies. We include two cases that were specifically chosen to represent a strong early (young) encounter (Arp 81 = NGC 6621/6622) and a weak late (old) encounter (Arp 297 = NGC 5752/5754). The goals of the project include a determination of the timing, frequency, strength, and characteristics of the young star clusters formed in these two limiting cases of tidal encounters.

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