Discovery of a normal galaxy at z = 1. 018
Journal Article
·
· Astrophysical Journal; (United States)
- Palomar Observatory, Pasadena, CA (USA)
The discovery is reported of an apparently normal galaxy at z = 1.018, designated G0333 + 3208, found during a long-slit search for faint emission-line objects. One strong emission line has been detected in the wavelength range 3800-8500 A, which is attributed to 0 II forbidden 3727 A. The object is an about 24 mag galaxy with a relatively flat optical spectrum. There are no morphological or spectroscopic signs of an active nucleus in the object, or in its vicinity, and no radio flux from the object down to 200 micro-Jy rms at lambda = 20 cm. From the emission-line flux, assuming photoionization by young stars and a normal IMF, a star formation rate of about 3.5/sq h solar mass/yr (for omega0 = 1). This object would thus be among the most distant of normal galaxies now known. It may be representative of the faint blue or flat-spectrum population, which dominates deep galaxy counts. 22 refs.
- OSTI ID:
- 5596508
- Journal Information:
- Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 371; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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