# The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy PKS J1222+0413

@article{Kynoch2019TheRJ,
title={The relativistic jet of the $\gamma$-ray emitting narrow-line Seyfert 1 galaxy PKS J1222+0413},
author={Daniel Kynoch and Hermine Landt and Martin J. Ward and C. Done and Catherine Boisson and Mislav Balokovi'c and Emmanouil Angelakis and Ioannis Myserlis},
journal={Monthly Notices of the Royal Astronomical Society},
year={2019}
}
• Published 29 April 2019
• Physics
• Monthly Notices of the Royal Astronomical Society
We present a multifrequency study of PKS J1222+0413 (4C +04.42), currently the highest redshift γ-ray emitting narrow-line Seyfert 1 (γ-NLS1). We assemble a broad spectral energy distribution (SED) including previously unpublished datasets: X-ray data obtained with the NuSTAR and Neil Gehrels Swift observatories; near-infrared, optical, and UV spectroscopy obtained with VLT X-shooter; and multiband radio data from the Effelsberg telescope. These new observations are supplemented by archival…
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## References

SHOWING 1-10 OF 80 REFERENCES

### The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy 1H 0323+342.

• Physics
• 2018
The detection of several radio-loud narrow-line Seyfert 1 (NLS1) galaxies by the Fermi Gamma-Ray Space Telescope hints at the existence of a rare, new class of γ-ray emitting active galactic nuclei

### On the black hole mass of the γ-ray emitting narrow-line Seyfert 1 galaxy 1H 0323+342

Narrow-line Seyfert 1 galaxies have been identified by the Fermi Gamma-Ray Space Telescope as a rare class of γ-ray emitting active galactic nuclei. The lowest redshift candidate among them is the

### General Physical Properties of Gamma-Ray-emitting Narrow-line Seyfert 1 Galaxies

• Physics
The Astrophysical Journal
• 2019
We present the results of a detailed multiwavelength study of a sample of 16 narrow-line Seyfert 1 (NLSy1) galaxies known in γ-rays so far. This includes a focused X-ray spectral analysis, to compare

### Inner jet kinematics and the viewing angle towards the γ-ray narrow-line Seyfert 1 galaxy 1H 0323+342

• Physics
• 2016
Near-Eddington accretion rates onto low-mass black holes are thought to be a prime driver of the multi-wavelength properties of the narrow-line Seyfert 1 (NLS1) population of active galactic nuclei

### Radio jet emission from GeV-emitting narrow-line Seyfert 1 galaxies

• Physics
• 2015
We studied the radio emission from four radio-loud and gamma-ray-loud narrow-line Seyfert 1 galaxies. The goal was to investigate whether a relativistic jet is operating at the source, and quantify

### What powers the most relativistic jets? - II. Flat-spectrum radio quasars

• Physics
• 2018
Flat Spectrum Radio Quasars (FSRQs) are the most powerful relativistic jets seen from supermassive black holes (BHs) accreting via a radiatively efficient thin disc. Their high energy emission is

### Super-Eddington QSO RX J0439.6-5311 – II. Multiwavelength constraints on the global structure of the accretion flow.

• Physics
• 2017
We present a detailed multiwavelength study of an unobscured, highly super-Eddington Type-1 QSO RX J0439.6-5311. We combine the latest XMM–Newton observation with all archival data from infrared to

### Narrow vs. broad-line Seyfert 1 galaxies: X-ray, optical, and mid-infrared AGN characteristics

• Physics
• 2018
We investigated narrow line Seyfert 1 galaxies (NLS1s) at optical, mid-infrared (MIR) and X-ray wavelengths, comparing them to the broad line active galactic nuclei (BLAGNs). We found that black hole

### RADIO-LOUD NARROW-LINE SEYFERT 1 AS A NEW CLASS OF GAMMA-RAY ACTIVE GALACTIC NUCLEI

• Physics
• 2009
We report the discovery with Fermi/LAT of γ-ray emission from three radio-loud narrow-line Seyfert 1 galaxies: PKS 1502+036 (z = 0.409), 1H 0323+342 (z = 0.061), and PKS 2004 − 447 (z = 0.24). In

### SPECTRAL ENERGY DISTRIBUTIONS OF TYPE 1 ACTIVE GALACTIC NUCLEI IN THE COSMOS SURVEY. I. THE XMM-COSMOS SAMPLE

• Physics
• 2012
The “Cosmic Evolution Survey” (COSMOS) enables the study of the spectral energy distributions (SEDs) of active galactic nuclei (AGNs) because of the deep coverage and rich sampling of frequencies