Preprint Article Version 1 NOT YET PEER-REVIEWED

A panchromatic view of relativistic jets in narrow-line Seyfert 1 galaxies

  1. Dipartimento di Fisica e Astronomia, Universitá degli Studi di Bologna, Viale Berti Pichat 6/2, I-40127 Bologna, Italy
  2. INAF - Istituto di Radioastronomia, Via Gobetti 101, I-40129 Bologna, Italy
  3. U.S. Naval Research Laboratory, Code 7653, 4555 Overlook Ave. SW, Washington, DC 20375-5352, USA
  4. KTH, Department of Physics, and the Oskar Klein Centre, AlbaNova, SE-106 91 Stockholm, Sweden
  5. INAF - Osservatorio Astrofisico di Torino, Via Osservatorio 20, I-10025 Pino Torinese (TO), Italy
Version 1 : Received: 15 July 2016 / Approved: 15 July 2016 / Online: 15 July 2016 (11:29:08 CEST)

A peer-reviewed article of this Preprint also exists.

D’Ammando, F.; Orienti, M.; Finke, J.; Larsson, J.; Giroletti, M.; Raiteri, C.M. A Panchromatic View of Relativistic Jets in Narrow-Line Seyfert 1 Galaxies. Galaxies 2016, 4, 11. D’Ammando, F.; Orienti, M.; Finke, J.; Larsson, J.; Giroletti, M.; Raiteri, C.M. A Panchromatic View of Relativistic Jets in Narrow-Line Seyfert 1 Galaxies. Galaxies 2016, 4, 11.

Journal reference: Galaxies 2016, 4, 11
DOI: 10.3390/galaxies4030011

Abstract

The discovery by the Large Area Telescope on board Fermi of variable gamma-ray emission from radio-loud narrow-line Seyfert 1 (NLSy1) galaxies revealed the presence of a possible third class of AGN with relativistic jets in addition to blazars and radio galaxies. Considering that NLSy1 are usually hosted in spiral galaxies, this finding poses intriguing questions about the nature of these objects and the formation of relativistic jets. We report on a systematic investigation of the gamma-ray properties of a sample of radio-loud NLSy1, including the detection of new objects, using 7 years of Fermi-LAT data with the new Pass 8 event-level analysis. In addition we discuss the radio-to-very-high-energy properties of the gamma-ray emitting NLSy1, their host galaxy, and black hole mass in the context of the blazar scenario and the unification of relativistic jets at different scales.

Subject Areas

galaxies: nuclei; galaxies: jets; galaxies: Seyfert; gamma-rays: general

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