The KPNO International Spectroscopic Survey. III. [O III]-selected Survey List

Details The KPNO International Spectroscopic Survey. III. [O III]-selected Survey List The KPNO International Spectroscopic Survey. III. [O III]-selected Survey List

2001-12-13

arxiv.org/abs/astro-ph/0112321v1

Astronomy and Astrophysics

Astrophysics

21 pages, with 12 figures and 3 tables. Accepted for publication in the March, 2002 AJ. Full versions of the catalog tables av

Scientific paper

10.1086/339024

The KPNO International Spectroscopic Survey (KISS) is an objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys with the advantages of modern CCD detectors, and is the first purely digital objective-prism survey for emission-line galaxies. Here we present the first list of emission-line galaxy candidates selected from our blue spectral data, which cover the wavelength range 4800 -- 5500 A. In most cases, the detected emission line is [O III]5007. The current survey list covers a one-degree-wide strip located at Dec = 29 deg 30' (B1950.0) and spanning the right ascension range 8h 30m to 17h 0m. An area of 116.6 deg^2 is covered. A total of 223 candidate emission-line objects have been selected for inclusion in the survey list (1.91 deg^-2). We tabulate accurate coordinates and photometry for each source, as well as estimates of the redshift, emission-line flux, and equivalent width based on measurements of the digital objective-prism spectra. The median apparent magnitude of the sample is B = 18.2, and galaxies with redshifts approaching z = 0.1 are detected. The properties of the KISS emission-line galaxies are examined using the available observational data, and compared to previous surveys carried out with photographic plates as well as with the H-alpha-selected portion of KISS.

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