Searches for Low-Metallicity Galaxies and Preliminary Results from the KPNO International Spectroscopic Survey

Details Searches for Low-Metallicity Galaxies and Preliminary Results from the KPNO International Spectroscopic Survey Searches for Low-Metallicity Galaxies and Preliminary Results from the KPNO International Spectroscopic Survey

1998-06-17

arxiv.org/abs/astro-ph/9806239v1

Astronomy and Astrophysics

Astrophysics

10 pages, 6 figures, style files included; to appear in "Dwarf Galaxies and Cosmology", eds. Thuan et al., Editions Frontieres

Scientific paper

Searches for low-metallicity galaxies are reviewed, focusing mainly on efforts to discover systems that are relevant for use in measuring the primordial helium abundance. Wide-field objective-prism surveys for blue or emission-line galaxies have played a major role in this field. Previous surveys and search techniques are highlighted. Preliminary results from our new survey for emission-line galaxies, the KPNO International Spectroscopic Survey (KISS), are presented. KISS is substantially deeper than previous photographic surveys, and represents the next generation of wide-field slitless spectroscopic surveys.

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