Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-08-13
Astronomy and Astrophysics
Astrophysics
5 pages, 2 figures. LaTeX, uses IAU207_pasp.sty. To appear in proceedings of IAU Symp. 207, "Extragalactic Star Clusters," eds
Scientific paper
The giant early-type merger remnant galaxy NGC 1316 is an ideal probe for studying the long-term effects of a major merger on its globular cluster (GC) system, given its spectroscopically derived merger age of 3 Gyr which we reported in a recent paper. Here we report several pieces of photometric evidence showing that the second-generation GCs in NGC 1316 are at an evolutionary phase in between that of luminous GCs found in younger merger remnants such as (e.g.) NGC 7252 and that of `red' GCs found in `normal, old' ellipticals. The observation that massive, second-generation GCs formed during major mergers can survive for at least 3 Gyr provides strong evidence that these clusters can have `normal' mass functions including low-mass stars, and hence that they can survive to reach `old age' similar to those of `normal' ellipticals.
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