Long-Slit Optical Spectroscopy of Infrared Galaxies

Details Long-Slit Optical Spectroscopy of Infrared Galaxies Long-Slit Optical Spectroscopy of Infrared Galaxies

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.3119a&link_type=abstract

American Astronomical Society, 182nd AAS Meeting, #31.19; Bulletin of the American Astronomical Society, Vol. 25, p.843

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of an investigation of energy generation mechanisms in a subset of galaxies from the Bright Galaxy Sample (Soifer et al., ApJ, 320, 238). This study is based on established optical emission line criteria involving [O III] lambda 5007/Hβ , [N II] lambda 6583/Hα , [S II] (lambda 6716 + lambda 6731)/Hα , and [O I] lambda 6300/Hα ratios taken from high signal-to-noise ratio longslit optical spectra of 19 Bright Galaxy Sample sources observed at the Palomar 5 m telescope. These criteria broadly define the sources as a single AGN and 18 starburst galaxies. However, they also indicate that significant variations in activity are present in 9 members of our sample. This supports the notion that AGNs and starbursts often coexist in infrared galaxies.

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