Statistics – Computation
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.240..329l&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 240, Sept. 15, 1989, p. 329-348.
Statistics
Computation
92
Galactic Structure, Infrared Sources (Astronomy), Interacting Galaxies, Luminosity, Computational Astrophysics, Infrared Astronomy Satellite, Red Shift, Seyfert Galaxies, Sky Surveys (Astronomy)
Scientific paper
An analysis of CCD images of a sample of 60 high-luminosity IRAS galaxies from the redshift survey of Lawrence et al. (1986) and of a control sample of 87 optically selected galaxies from the Durham redshift survey (Peterson et al., 1986) is presented. It is found that 18 + or - 5 percent of the optically selected galaxies are interacting or merging systems, and that 11 + or - 8 percent of the low-luminosity IRAS galaxies are interacting or merging. At high luminosities, the proportion is shown to be 46 + or - 12 percent. The results suggest that although galaxy interaction is a common causal factor in luminous IR activity, it is far from being the ubiquitous factor suggested in recent reports.
Jones H. P. D.
Lawrence Andy
Leech Kieron
Rowan-Robinson Michael
Wall Jasper V.
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