Astronomy and Astrophysics – Astronomy
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.4005j&link_type=abstract
American Astronomical Society, 200th AAS Meeting, #40.05; Bulletin of the American Astronomical Society, Vol. 34, p.702
Astronomy and Astrophysics
Astronomy
Scientific paper
We present spectroscopic properties of a sample of 326 emission-line galaxy (ELG) candidates obtained with the MDM 2.4-m telescope. The data include redshifts, reddening estimates, equivalent line widths, Hα line fluxes, and emission-line ratios. Our sample is drawn from the Kitt Peak International Spectroscopic Survey (KISS) -- an ongoing wide-field objective-prism survey for extragalactic emission-line objects which to date has discovered over 2000 ELG candidates. The KISS catalog lists redshifts, equivalent widths, and line fluxes, which are determined from the digital objective-prism spectra. Here we explore how well these survey data agree with the MDM follow-up slit spectra. Our procedure for selecting ELG candidates from KISS observations appears to be very reliable: 96% of the candidates are verified to have emission lines. The KISS objective-prism redshifts are shown to be in good agreement with the redshifts determined from the follow-up spectra. Substantial differences are found for only 5% of the candidates; these are often intermediate-redshift sources where a strong [OIII] line in the objective-prism spectrum was identified as the Hα line. We also use the MDM spectra to classify ELG candidates based on their [NII]/Hα and [OIII]/Hβ flux ratios. Slightly more than three-quarters of the ELGs are determined to be starburst galaxies. Active galaxies (mainly Seyfert galaxies and LINERs) make up nearly 20% of the sample.
Gronwall Caryl
Jangren Anna
Melbourne Jason
Salzer John Joseph
Wegner Gary
No associations
LandOfFree
Spectroscopic Properties of a Large Sample of KISS Emission-Line Galaxy Candidates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spectroscopic Properties of a Large Sample of KISS Emission-Line Galaxy Candidates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic Properties of a Large Sample of KISS Emission-Line Galaxy Candidates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1718612