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

Kynoch, Daniel; Landt, Hermine; Ward, Martin J; Done, Chris; Boisson, Catherine; Baloković, Mislav; Angelakis, Emmanouil; Myserlis, Ioannis

doi:10.1093/mnras/stz1193

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

Kynoch, Daniel; Landt, Hermine; Ward, Martin J; Done, Chris; Boisson, Catherine; Baloković, Mislav; Angelakis, Emmanouil; Myserlis, Ioannis

Authors

Daniel Kynoch

Hermine Landt

Professor Martin Ward martin.ward@durham.ac.uk
External Examiner (PGR)

Professor Christine Done chris.done@durham.ac.uk
Professor

Catherine Boisson

Mislav Baloković

Emmanouil Angelakis

Ioannis Myserlis

Contributors

Dr Hermine Landt-Wilman hermine.landt@durham.ac.uk
Other

Abstract

We present a multi-frequency 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 We assemble a broad spectral energy distribution (SED) including previously unpublished datasets: X-ray data obtained with the NuSTAR and Neil Gehrels Swift observatories; near-infrared, optical and UV spectroscopy obtained with VLT X-shooter; and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 data from the literature. We apply physical models to the broadband SED, parameterising the accretion flow and jet emission to investigate the disc-jet connection. PKS J1222+0413 has a much greater black hole mass than most other NLS1s, MBH≈2×108 M⊙, similar to those found in flat spectrum radio quasars (FSRQs). Therefore this source provides insight into how the jets of γ-NLS1s relate to those of FSRQs.

Citation

Kynoch, D., Landt, H., Ward, M. J., Done, C., Boisson, C., Baloković, M., …Myserlis, I. (2019). The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy PKS J1222+0413. Monthly Notices of the Royal Astronomical Society, 487(1), 181-197. https://doi.org/10.1093/mnras/stz1193

Journal Article Type	Article
Acceptance Date	Apr 25, 2019
Online Publication Date	May 2, 2019
Publication Date	Jul 31, 2019
Deposit Date	May 3, 2019
Publicly Available Date	May 3, 2019
Journal	Monthly Notices of the Royal Astronomical Society
Print ISSN	0035-8711
Electronic ISSN	1365-2966
Publisher	Royal Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	487
Issue	1
Pages	181-197
DOI	https://doi.org/10.1093/mnras/stz1193