High-Resolution Imaging of Nuclear Stellar Clusters in AGN N1365 - Lrf

Astronomy and Astrophysics – Astrophysics

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Hst Proposal Id #6149 Quasars And Agn Host Galaxies

Scientific paper

We plan to use the high-resolution available to the PC-II to investigate the central arcsec of a number of nearby AGN. This study is motivated by suggestions of connections between dense stellar clusters formed in starbursts and conventional active galactic nuclei. We shall image the nuclei of the sample in the UV, and in U, V, and I in a manner that will allow us to adequately remove scattered light from the central source and determine the structure of extended emission in the surrounding regions. By examining the radial distribution of starlight from the nucleus we will be able to place astrophysically useful limits on the magnitude and dimensions of the putative central star cluster. In particular, we will determine if the origin of the `big blue bump' is hot stars in the cluster rather than the central engine, look for extended UV emission from `warmers', and examine the structure of the extended OIII emission-line region

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