Identification of high redshift galaxies with very large gaseous halos.

Details Identification of high redshift galaxies with very large gaseous halos. Identification of high redshift galaxies with very large gaseous halos.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989msngr..57...28b&link_type=abstract

The Messenger, vol. 57, p. 28-29

Physics

Quasars: Redshifts, Quasars: Identifications

Scientific paper

Over the last several years, considerable efforts have been aimed at understanding the properties of objects at high redshift. The main studies concern optically selected sampies of field galaxies (Koo 1986, Koo and Kron 1988, Broadhurst et al. 1988) and rich clusters of galaxies (Gunn and Dressler 1987, Gunn 1988), and radio selected objects first from the 3C sampie of bright sources (Spinrad et al. 1985, Djorgovski 1988) and more recently from sampies of fainter radio sources (Chambers et al. 1987 and 1988, Koo 1988, Lilly 1989). Our approach is to select high redshift objects with metal-rich, very extended gaseous envelopes giving rise to absorption line systems in quasar spectra. These objects may exhibit properties closer to those of normal galaxies than to those of rather extreme objects associated with powerful radio sources.

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