Objective-Prism Emission-Line Searches for Active Galactic Nuclei

Spectroscopic observations for 351 emission-line galaxy candidates from the KPNO International Spectroscopic Survey (KISS) have been obtained using the MDM Observatory 2.4 m telescope on Kitt Peak. KISS is an ongoing wide-field objective-prism survey for extragalactic emission-line objects, which has cataloged over 2200 emission-line galaxy (ELG) candidates to date. Spectroscopic follow-up observations are being carried out to study the characteristics of the survey objects. The observational data presented here include redshifts, reddening estimates, line equivalent widths, H line fluxes, and emission-line ratios. The galaxies have been classified based on their emission-line characteristics. The procedure for selecting the ELG candidates in KISS is found to be very reliable: 95% of the candidates in this sample are verified to have emission lines. A comparison of objective-prism survey data-redshifts, H line fluxes, and equivalent widths-with the long-slit measurements shows good overall agreement.

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Metal Abundances of KISS Galaxies. II. Nebular Abundances of 12 Low-Luminosity Emission-Line Galaxies

Melbourne

Phillips

Salzer

et al. 2004

Astron J

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We present follow-up spectra of 39 emission-line galaxies (ELGs) from the KPNO International Spectroscopic Survey (KISS). Many targets were selected as potentially low metallicity systems based on their absolute B magnitudes and the metallicity-luminosity relation. The spectra, obtained with the Lick 3-m telescope, cover the full optical region from [O II]λλ3726, 29 to beyond [S II]λλ6717,31 and include measurement of [O III]λ4363 in twelve objects. The spectra are presented and tables of the strong line ratios are given. For twelve high signal-to-noise ratio spectra, we determine abundance ratios of oxygen, nitrogen, neon, sulfur and argon. We find these galaxies to be metal deficient with three systems approaching O/H of 1/25th solar. We compare the abundance results from the temperature-based T e method to the results from the strong-line p 3 method of Pilyguin (2000).

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Objective-Prism Emission-Line Searches for Active Galactic Nuclei

Cited by 7 publications

References 19 publications

H [CSC]i[/CSC] Properties of Low-Luminosity Star-forming Galaxies in the KPNO International Spectroscopic Survey

H [CSC]i[/CSC] Properties of Low-Luminosity Star-forming Galaxies in the KPNO International Spectroscopic Survey

Spectroscopy of KISS Emission-Line Galaxy Candidates. I. MDM Observations

Metal Abundances of KISS Galaxies. II. Nebular Abundances of 12 Low-Luminosity Emission-Line Galaxies

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