Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hst..prop.9379s&link_type=abstract
HST Proposal ID #9379
Astronomy and Astrophysics
Astronomy
Hst Proposal Id #9379
Scientific paper
We propose a near-UV snapshot survey of 101 Seyfert galaxies using ACS/HRC and the filter F330W, a configuration which is optimal to detect faint star forming regions around their nuclei. These images will complement optical and near-IR images available in the HST archive, thus providing a panchromatic atlas of the inner regions of active galaxies, which we will use to study the starburst-AGN connection. The main goals of this proposal are: {1} Determine the frequency of circumnuclear starbursts in Seyferts, down to levels which cannot be observed from the ground; {2} characterize the observational {fluxes, colors, structure, sizes} and intrinsic {luminosities, masses, ages, global star-formation rate} properties of these clusters; {3} derive the luminosity functions of young star clusters around the nucleus of Seyferts and compare these results with those from normal and starburst galaxies to determine their survival rate close to the AGN; {4} address questions about the relation between AGNs and starbursts, like the possible connection between the masses and luminosities of black holes and starbursts, and the implications for the evolution of the black holes and their host galaxy bulges. By adding UV images to the existing optical and near-IR ones, this project will create an extremely valuable database for astronomers with a broad range of scientific interests, from the properties of the AGN to the properties of their host galaxies.
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