An unusual broad line profile in the QSO + 144 - Evidence for an optical jet?

Details An unusual broad line profile in the QSO + 144 - Evidence for an optical jet? An unusual broad line profile in the QSO + 144 - Evidence for an optical jet?

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...328..175z&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 328, May 1, 1988, p. 175-178.

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Balmer Series, Electron Transitions, Forbidden Transitions, Line Spectra, Quasars, Red Shift, Active Galactic Nuclei, Computational Astrophysics, Electron Density (Concentration), Emission Spectra, Line Of Sight

Scientific paper

Narrow components in the profiles of the broad Balmer and Mg II emission lines were observed in the QSO 0054+144 (PHL 909). The redshift given by the narrow permitted lines is smaller than that of the narrow forbidden [O III] lines, by an amount corresponding to a velocity difference of ≡1000 km s-1. There was a possible change in both the broad and narrow permitted lines between 1980 and 1986. It is suggested that the narrow Balmer component may have been produced in a short-lived jetlike structure moving outward from the center of the QSO with this relative line-of-sight velocity.

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