PC 0910 + 5625 - an optically selected quasar with a redshift of 4.04

Details PC 0910 + 5625 - an optically selected quasar with a redshift of 4.04 PC 0910 + 5625 - an optically selected quasar with a redshift of 4.04

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321l...7s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 321, Oct. 1, 1987, p. L7-L10. Research supported by

Astronomy and Astrophysics

Astrophysics

24

Emission Spectra, Quasars, Red Shift, Spectrum Analysis, Astronomical Photometry, Lyman Alpha Radiation, Spectral Resolution

Scientific paper

The authors report the discovery of the second quasar with a redshift greater than 4. This object, which has an r magnitude of 21.0, was detected on a CCD grism survey. The spectrum of the quasar has strong, relatively narrow (but resolved) emission lines; there is a deep absorption trough ≡100 Å wide on the blue wing of the Lyman-α line; and the continuum at wavelengths shorter than the absorption feature is far weaker that the level present redward of Lyman-α.

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