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Photoelectric spectrophotometry of OQ 172 and OH 471 (1974)

Oke, J. B.

In: Other Sources

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Publication Date: 2019-06-27

Description: Absolute spectral energy distributions for the large-redshift quasars OQ 172 and OH 471 are discussed along with similar data for two other quasars: 4C 05.34 and PHL 957. If the redshift are assumed to be cosmological, OQ 172 and OH 471 are not as luminous as PHL 957. If these quasars are basically similar and if radiative processes dominate, the strength of alpha and the behavior of the continuum at the Lyman limit strongly suggest that these objects consist of a central ionizing source surrounded by discrete clouds, filaments, or a gaseous structure such as a disk. This gaseous matter does not cover the whole solid angle surrounding the source.

Keywords: COMMUNICATIONS

Type: Astrophysical Journal; 189; Apr. 15

Format: text

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