A search for primeval galaxies using a narrow-band imaging technique

Details A search for primeval galaxies using a narrow-band imaging technique A search for primeval galaxies using a narrow-band imaging technique

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105.1243d&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 4, p. 1243-1250.

Astronomy and Astrophysics

Astronomy

35

Galactic Radiation, Luminosity, Lyman Alpha Radiation, Red Shift, Astronomical Models, Brightness, Imagery, Narrowband, Space Density

Scientific paper

We have imaged nine fields through a system of narrow-band filters, in order to search for Ly-alpha emission from primeval galaxies at z of 2.2-3.3. We report here on our inability to detect emission-line objects down to a 1-sigma brightness threshold of 5.6 x 10 exp -17 erg/sq cm per sec per sq arcsec, with a limiting space density of less than 20 objects/sq deg. These results are in disagreement with simple models by about a factor of 10.

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