Discovery of three UV-bright z>2 quasars.

Details Discovery of three UV-bright z>2 quasars. Discovery of three UV-bright z>2 quasars.

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...293l..21r&link_type=abstract

Astronomy and Astrophysics 293L, L21-L24 (1995)

Astronomy and Astrophysics

Astrophysics

20

Quasars: General, Quasars: Individual: Hs 1103+6416, Hs 1307+47161 He 1122-1649, Quasars: Uv Radiation

Scientific paper

We report the discovery within the Hamburg quasar surveys and subsequent UV observations with IUE of 10 bright, high-redshift quasars. While 3 objects appear completely absorbed below 3200A, HS 1103+6416 (z=2.19), HS 1307+4716 (z=2.13), HE 1122-1649 (z=2.40), HE 1230-2347 (z=1.85), and HE 1211-1322 (z=1.12) have been detected with the IUE short wavelength camera. The first three are even brighter than HS 1700+6416, which is so far the only z>2 QSO observed successfully with HST in the far UV at a resolution and S/N useful for detailed absorption line spectroscopy (Reimers et al. 1992). We briefly discuss the observed frequency of UV-bright high-redshift QSOs in comparison with model predictions as well as prospects of future spectroscopy of the unabsorbed QSOs with HST and FUSE at EUV rest wavelengths.

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