We have analyzed HST/WFPC2 images of NGC 3597 and find ≃700 compact objects surrounding the galaxy with an average (B-R)o ≃ 0.6. We propose that the majority of these objects are young globular clusters. They have a spread in colors that is consistent with that expected for a population of young clusters with a common age and spread induced by photometric errors and reddening within NGC 3597. If these objects were similar to the Galactic globular cluster system seen at a younger age, we would predict a turnover in the luminosity function at B ≃ 23. However, we find that the luminosity function for the clusters is increasing to the limits of our photometry (B ≃ 27).
- Galaxies: star clusters
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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Carlson, M. N. (Creator), Holtzman, J. A. (Creator), Grillmair, C. J. (Creator), Mould, J. R. (Creator), Griffiths, R. E. (Creator), Ballester, G. E. (Creator), Burrows, C. J. (Creator), Clarke, J. T. (Creator), Crisp, D. (Creator), Evans, R. W. (Creator), Gallagher III, J. S. (Contributor), Hester, J. J. (Creator), Hoessel, J. G. (Creator), Scowen, P. A. (Creator), Stapelfeldt, K. R. (Creator), Trauger, J. T. (Creator), Watson, A. M. (Creator) & Westphal, J. A. (Creator), Strasbourg Astronomical Data Center, 2000