The nuclear starburst activity in M83 - Imaging at near-IR wavelengths

Astronomy and Astrophysics – Astronomy

Scientific paper

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Active Galactic Nuclei, Barred Galaxies, Near Infrared Radiation, Starburst Galaxies, Galactic Structure, Radio Sources (Astronomy), Star Formation

Scientific paper

Three color near-IR images of the starburst nucleus of the barred galaxy NGC 5236 (M83) are presented. Aarcsec angular resolution is achieved which leads to an improved understanding of the structure of the region. The conventional nucleus is clearly localized and shown to be also a star forming site. The identification of radio/10-micron sources NW from the nucleus allows a new positioning of the most active region of star formation which does not appear to be directly connected to the nucleus. Because of their visible and near-IR counterparts, and of their IR colors, these active star forming regions are very likely located on the edge of the molecular complex.

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