NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-21 T07:48:39 PDT
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For refcode 2000MNRAS.312..703F:
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NED Abstract

Copyright by Royal Astronomical Society. 2000MNRAS.312..703F Imaging of the merging galaxy NGC 3597 and its population of protoglobular clusters Duncan A. Forbes and G. K. T. Hau Accepted 1999 October 10. Received 1999 September 13; in original form 1999 June 15 ABSTRACT We present wide field-of-view near-infrared imaging from the NTT and very deep optical imaging from the HST of the young merging galaxy NGC 3597. The morphology of the galaxy and the properties of the newly formed protoglobular clusters (PGCs) are examined. Our K-band data reveal the presence of a second nucleus, which provides further evidence that NGC 3597 is the result of a recent merger. Combining new K-band photometry with optical photometry, we are able for the first time to derive a unique age for the newly formed PGCs of a few Myr. This is consistent with the galaxy starburst age of <=10 Myr. From deep HST imaging, we are able to probe the luminosity function ~8 magnitudes fainter than normal, old globular clusters, and confirm that the PGCs have a power-law distribution with a slope of ~-2. Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: individual: NGC 3597 - galaxies: interactions - galaxies: photometry - galaxies: star clusters
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