Near-infrared imaging of FSC 10214+4724 with the W. M. Keck Telescope

Details Near-infrared imaging of FSC 10214+4724 with the W. M. Keck Telescope Near-infrared imaging of FSC 10214+4724 with the W. M. Keck Telescope

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...420l..13m&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 420, no. 1, p. L13-L16

Astronomy and Astrophysics

Astronomy

42

Galactic Clusters, H Alpha Line, Infrared Astronomy, Interacting Galaxies, Luminosity, Starburst Galaxies, Infrared Astronomy Satellite, Infrared Imagery, Nitrogen, Red Shift, Reflecting Telescopes

Scientific paper

Near-infrared observations of the z = 2.286 IRAS source FSC 10214+4724, made with the near-infrared camera on the W. M. Keck Telescope, are reported. Deep broad-band images at 2.15 and 1.27 micrometers, and narrow-band images at 2.165 and 2.125 micrometers with 0.6 sec to 0.9 sec seeing show that FSC 10214+4724 consists of at least three distinct components in a compact group of galaxies. The source of the infrared luminosity appears to be in a strongly interacting galaxy that has a luminosity of approximately 100 times that of a present-day L* galaxy. The interaction suggests and 'age' of this galaxy of approximately equal to 109 yr. The H-alpha emission is resolved as a source of diameter approximately equal to 5 kpc, suggesting that a starburst contributes to the observed H-alpha emission. There is an excess of objects in the FSC 10214+4724 field that could represent galaxies in an associated cluster.

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