The Wasilewski sample of emission-line galaxies - Follow-up CCD imaging and spectroscopic and IRAS observations

Details The Wasilewski sample of emission-line galaxies - Follow-up CCD imaging and spectroscopic and IRAS observations The Wasilewski sample of emission-line galaxies - Follow-up CCD imaging and spectroscopic and IRAS observations

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apjs...70..271b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 70, June 1989, p. 271-328.

Astronomy and Astrophysics

Astronomy

46

Emission Spectra, Galactic Radiation, Infrared Sources (Astronomy), Line Spectra, Astronomical Photometry, Astronomical Spectroscopy, H Ii Regions, Infrared Astronomy Satellite, Interacting Galaxies, Seyfert Galaxies, Sky Surveys (Astronomy), Starburst Galaxies

Scientific paper

The results of an extensive imaging and spectroscopic follow-up of the objective prism-selected emission line galaxy (ELG) sample of Wasilewski (1982) are presented. Fluxes at 12, 25, 60, and 100 microns were also obtained from the coadded IRAS survey data. ELGs found by objective prism surveys are found to be generally small and underluminous galaxies which usually have higher than average optical surface brightness. The Seyfert detection rate in objective prism surveys is roughly 10 percent and the ratio of the space densities of Seyfert 2 to Seyfert 1 galaxies is significantly larger than unity. Most of the galaxies selected by objective prism surveys are star-forming, late-type spirals which often show disturbed morphology. About 25 percent of the galaxies detected by the surveys are faint, high-excitation metal-poor compact H II regions.

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