The NICMOS GRISM Parallel Survey: Hα Emission-Line Galaxies at 0.7 < Z < 1.9

Details The NICMOS GRISM Parallel Survey: Hα Emission-Line Galaxies at 0.7 < Z < 1.9 The NICMOS GRISM Parallel Survey: Hα Emission-Line Galaxies at 0.7 < Z < 1.9

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.4902m&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #49.02; Bulletin of the American Astronomical Society, Vol. 30, p.1326

Astronomy and Astrophysics

Astronomy

Scientific paper

We have analyzed NICMOS parallels obtained with the G141 (lambda_c = 1.5mu , Delta lambda = 0.8mu ) grism. These slitless spectra cover the wavelength range from 1.2 to 1.9 microns and reach typical continuum and line depths of H = 22 and 5 x 10(-17) erg cm(-2) sec(-1) . We find strong line emission in 32 objects, after surveying an area of 85 square arc-minutes. Assuming that most of the emission-lines are Hα at 0.7 < z < 1.9, the implied star formation rates range from 2 to 160 Msun yr(-1) . These star-forming galaxies have luminosities and space densities similar to present-day L(*) galaxies and may be the z = 1 - 2 analogs of the z = 3 galaxies identified from their UV continuum breaks.

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