An Hα Objective-Prism Survey in the NDWFS Böotes Field

Details An Hα Objective-Prism Survey in the NDWFS Böotes Field An Hα Objective-Prism Survey in the NDWFS Böotes Field

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.4317g&link_type=abstract

American Astronomical Society Meeting 204, #43.17; Bulletin of the American Astronomical Society, Vol. 36, p.731

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results of an objective-prism survey for nearby emission-line galaxies (ELGs) in the NOAO Deep Wide Field Survey (NDWFS) Böotes Field. This survey is part of the KPNO International Spectroscopic Survey (KISS) collaboration which has surveyed approximately 150 square degrees for Hα emission-line galaxies out to z=0.1. KISS is the first purely digital objective-prism survey, and it extends previous photographic surveys to much fainter flux limits. Results for the first two survey strips have provided a large sample of 2157 ELG candidates in 128 square degrees or 16.9 per square degree. We have discovered 150 additional ELG candidates in the NDWFS Böotes field, and follow-up spectroscopy for this sample is scheduled. We present magnitude, color, redshift, and spatial distributions of this sample based on the survey data. In addition, we present samples of our recently acquired follow-up spectra. We also discuss possible science projects enabled by the combination of our KISS data with multiwavelength surveys in the Böotes field. In particular, because our sample is selected via Hα emission, it is ideal for studying star formation in the local universe. We plan to combine our Hα data with the extensive multi-wavelength data available in this field to better calibrate the various star-formation rate indicators used to study star formation in the distant universe. The full data set will be made available to the community to ensure the highest possible use of the data for a variety of projects involving the NWDFS.
This research is supported in part by funds from the National Science Foundation.

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