Induced nuclear emission-line activity in interacting spiral galaxies

Details Induced nuclear emission-line activity in interacting spiral galaxies Induced nuclear emission-line activity in interacting spiral galaxies

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279l...5k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 279, April 1, 1984, p. L5-L9. Research supported by

Astronomy and Astrophysics

Astrophysics

124

Astronomical Spectroscopy, Interacting Galaxies, Nuclear Interactions, Seyfert Galaxies, Spiral Galaxies, Hydrogen Clouds, Spectral Line Width

Scientific paper

The authors have investigated the effect of close galaxy-galaxy interactions on the level of nuclear activity in spiral galaxies by obtaining nuclear spectrophotometry for complete samples of multiple and single systems. Galaxies with nearby companions possess significantly higher nuclear emission-line luminosities and equivalent widths, and their nuclei exhibit a significantly higher level of ionization on average. A much higher fraction of galaxies with Seyfert or Seyfert type nuclei is found in the sample of multiple systems.

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