SIMBAD references

2015MNRAS.454L..16Y - Mon. Not. R. Astron. Soc., 454, L16-L20 (2015/November-3)

Identification of a new γ-ray-emitting narrow-line Seyfert 1 galaxy, at redshift ∼ 1.

YAO S., YUAN W., ZHOU H., KOMOSSA S., ZHANG J., QIAO E. and LIU B.

Abstract (from CDS):

We report on the identification of a new γ-ray-emitting narrow-line Seyfert 1 (NLS1) galaxy, SDSS J122222.55+041315.7, which increases the number of known objects of this remarkable but rare type of active galactic nuclei to seven. Its optical spectrum, obtained in the Sloan Digital Sky Survey-Baryon Oscillation Spectroscopic Survey, reveals a broad H β emission line with a width (FWHM) of 1734±104 km/s. This, along with strong optical FeII multiplets [R4570 = 0.9] and a weak [Oiii] λ5007 emission line, makes the object a typical NLS1. On the other hand, the source exhibits a high radio brightness temperature, rapid infrared variability, and a flat X-ray spectrum extending up to ∼ 200 keV. It is associated with a luminous γ-ray source detected significantly with Fermi/LAT. Correlated variability with other wavebands has not yet been tested. The spectral energy distribution can be well modelled by a one-zone leptonic jet model. This new member is by far the most distant γ-ray-emitting NLS1, at a redshift of z = 0.966.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: active - galaxies: jets - galaxies: nuclei - quasars: individual: SDSS J122222.55+041315.7

Simbad objects: 9

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2019.10.16-17:59:42

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