Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...284l...5k&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 284, Sept. 1, 1984, p. L5-L8. Research supported by
Astronomy and Astrophysics
Astronomy
22
Cosmology, Infrared Astronomy, Quasars, Spectrophotometry, H Beta Line, Luminosity, Lyman Alpha Radiation, Red Shift
Scientific paper
Spectrophotometric and broad-band infrared observations are reported for the most luminous quasar S5 0014+81. H-beta and the forbidden line of O III in the 4959+5007 A emission lines are detected at a redshift of 3.41, in agreement with the optically determined redshift. S5 0014+81 is the first object at such high redshift in which H-beta and the forbidden line of O III have been measured separately, showing rest frame equivalent widths of 37 and 31 A, respectively. The relatively high Ly-alpha/H-beta ratio of 10.5 may be shaped by radiative transfer processes with little or no internal reddening. At the high-luminosity end represented by this quasar, a narrow-line region seems to be well established; the O III forbidden lines still seem to act as luminosity indicators over six and one-half orders of magnitude.
Kuhr H.
McAlary Christopher Walter
Rieke George H.
Rudy Richard J.
Strittmatter Peter A.
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