Detection of neutral hydrogen emission and optical nebulosity in the low redshift QSO 0351+026

Details Detection of neutral hydrogen emission and optical nebulosity in the low redshift QSO 0351+026 Detection of neutral hydrogen emission and optical nebulosity in the low redshift QSO 0351+026

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...257...40b&link_type=abstract

Astrophysical Journal, Part 1, vol. 257, June 1, 1982, p. 40-46. Research supported by the Alfred P. Sloan Foundation and Unive

Astronomy and Astrophysics

Astronomy

19

Astronomical Spectroscopy, Galactic Nuclei, Hydrogen, Neutral Gases, Quasars, Red Shift, X Ray Sources, Centimeter Waves, Electrophotometers, Emission Spectra, Light (Visible Radiation), Radio Sources (Astronomy), Seyfert Galaxies, X Ray Astronomy

Scientific paper

Spectroscopy, photometry, and imaging of the X-ray source 0351+026 are consistent with an active nucleus with the spectrum of a QSO or type I Seyfert, embedded in a low luminosity host galaxy of colors similar to M31. The H I observations reveal a tremendous amount of neutral gas associated with the system, M(H I)/L(B) = 15 in solar units, and the velocity width of the feature is 1500 km/s. Both parameters substantially exceed those seen in other galaxies and interacting pairs. The unique H I properties of the system combined with the presence of an active nucleus with QSO-like features is a tantalizing, but poorly understood, combination. At slightly larger redshift and thus inferior angular scale, this object would be indistinguishable from a QSO in its optical and X-ray characteristics.

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