High-resolution near-UV imaging of Seyfert galaxies

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

We present the preliminary results of a near ultraviolet (3300Å) HST/ACS imaging survey of 73 nearby Seyfert galaxies. These images are used to study the structure and frequency of circumnuclear star formation in these objects. We find a wide range of morphologies in these images, from Seyfert 1's where only a single point source was detected, to galaxies with a large number of circumnuclear star clusters, as well as objects where only diffuse emission could be seen. We find that circumnuclear star formation can be found around both Seyfert types, and not only around Seyfert 2's, as suggested by previous studies. We confirm previous ground-based results, which indicate that circumnuclear star formation is common in Seyfert galaxies.

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