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

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Astrophysical Journal, Supplement Series; (USA)

DOI:https://doi.org/10.1086/191341· OSTI ID:5710575

Bothun, G D; Schmitz, M; Halpern, J P; Lonsdale, C J; Impey, C ^[1]

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1. Michigan Univ., Ann Arbor (USA)

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. 62 refs.

• OSTI ID: 5710575
• Journal Information: Astrophysical Journal, Supplement Series; (USA), Journal Name: Astrophysical Journal, Supplement Series; (USA) Vol. 70; ISSN APJSA; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
CONFIGURATION
COSMIC RADIO SOURCES
EMISSION SPECTRA
GALAXIES
GRAVITATIONAL INTERACTIONS
H2 REGIONS
INFRARED SPECTRA
INTERACTIONS
MORPHOLOGY
PHOTOMETRY
SATELLITES
SEYFERT GALAXIES
SPECTRA
SPECTROSCOPY
SPIRAL CONFIGURATION