NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-24 T10:55:38 PDT
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For refcode 1989ApJ...345..176L:
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1989ApJ...345..176L STAR FORMATION IN A SAMPLE OF INTERACTING GALAXIES E. LAURIKAINEN Department of Physical Sciences, University of Turku; and Instituto de Astrofisico de Andalucia AND M. MOLES Instituto de Astrofisica de Andalucia Received 1988 October 24; accepted 1989 March 3 ABSTRACT Optical long-slit spectroscopy is presented for a sample of interacting galaxies mostly from the lists by Vorontsov-Velyaminov. The galaxies were chosen to span a large range of characteristics regarding the morphological types and their mutual distances in the systems. Our results were compared with samples of field galaxies which were first cleaned from interacting objects. We find that star formation is significantly enhanced in nonisolated objects. The induced star formation preferentially occurs in the central regions of the affected galaxies. We found a high fraction of the analyzed galaxies to be of the LINER type. This could be due to the low level at which this activity is present, which makes it difficult to detect in survey works. Subject headings: galaxies: interactions - stars: formation
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