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The central region of NGC 3077: ground‐based photometry and age of bright ‘starlike’ objects
Authors:P Notni  ID Karachentsev  LN Makarova
Abstract:We present UBVIC photometry of starlike objects in the central region of NGC 3077. The colour‐colour and colour‐magnitude diagrams of the objects are discussed. Many of the objects under consideration, starlike from the ground, are probably dense young star clusters (super star clusters, SSC). Ages spreading over ~4 to ~150 Myr are estimated for most of these objects. Sakai and Madore (2001) found enhanced star formation ~30–125 Myr ago also in the halo of this galaxy; thus, high star forming activity has occurred within the entire galaxy (centre and halo) since ~130…150 Myr. Having ended in the outer regions about 30 Myr ago, it is going on near the centre with full vigour. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Keywords:galaxies: dwarf (NGC 3077)  galaxies: stellar photometry  galaxies: stellar content
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