WFPC2 Observations of NGC 454: an Interacting Pair of Galaxies

Details WFPC2 Observations of NGC 454: an Interacting Pair of Galaxies WFPC2 Observations of NGC 454: an Interacting Pair of Galaxies

1997-11-06

arxiv.org/abs/astro-ph/9711058v1

Astronomy and Astrophysics

Astrophysics

14 pages, 4 figures, Latex (AAS macros), ApJL in press

Scientific paper

10.1086/311115

We present WFPC2 images in the F450W, F606W and F814W filters of the interacting pair of galaxies NGC 454. Our data indicate that the system is in the early stages of interaction. A population of young star-clusters has formed around the late component, and substantial amounts of gas have sunk into the center of the earlier component, where it has not yet produced significant visible star formation or nuclear activity. We have photometric evidence that the star-clusters have strong line emission, which indicate the presence of a substantial component of hot, massive stars which formed less than 5-10 Myrs ago.

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