skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The γ-ray emission region in the Fanaroff-Riley II radio galaxy 3C 111

Journal Article · · The Astrophysical Journal. Letters
 [1];  [1];  [2]
  1. National Inst. of Astrophysics-IASFBO, Bologna (Italy)
  2. National Inst. of Astrophysics-IRA, Bologna (Italy)

The broad-line radio galaxy 3C 111, characterized by a Fanaroff-Riley II (FRII) radio morphology, is one of the sources of the misaligned active galactic nucleus sample, consisting of radio galaxies and steep spectrum radio quasars, recently detected by the Fermi Large Area Telescope (LAT). In this analysis of the 24 month γ-ray light curve shows that 3C 111 was only occasionally detected at high energies. It was bright at the end of 2008 and faint, below the Fermi-LAT sensitivity threshold, for the rest of the time. A multifrequency campaign of 3C 111, ongoing in the same period, revealed an increase of the millimeter, optical, and X-ray fluxes in 2008 September-November, interpreted by Chatterjee et al. as due to the passage of a superluminal knot through the jet core. Furthermore, the temporal coincidence of the millimeter-optical-X-ray outburst with the GeV activity suggests a cospatiality of the events, allowing, for the first time, the localization of the γ-ray dissipative zone in an FRII jet. Here, we argue that the GeV photons of 3C 111 are produced in a compact region confined within 0.1 pc and at a distance of about 0.3 pc from the black hole.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
Fermi LAT Collaboration
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1356730
Journal Information:
The Astrophysical Journal. Letters, Vol. 751, Issue 1; ISSN 2041-8205
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

References (53)

3C 111 - A luminous radio galaxy with a highly collimated jet journal April 1984
Unified Schemes for Radio-Loud Active Galactic Nuclei journal June 1995
Structured jets in TeV BL Lac objects and radiogalaxies: Implications for the observed properties journal March 2005
A Simultaneous RXTE and XMM‐Newton Observation of the Broad‐Line Radio Galaxy 3C 111 journal April 2005
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array text January 2005
Fermi Gamma-Ray Imaging of a Radio Galaxy journal April 2010
Detection of TeV gamma-rays from the BL Lac 1ES 1959+650 in its low states and during a major outburst in 2002 journal July 2003
A two-phase model for the X-ray emission from Seyfert galaxies journal October 1991
THE SECOND CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE journal December 2011
Location of gamma-ray Flare Emission in the Jet of the BL Lacertae Object OJ287 more than 14pc from the Central Engine text January 2010
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array journal October 2005
Fast TeV variability from misaligned minijets in the jet of M87 text January 2009
THE FIRST CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE journal April 2010
FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG journal March 2012
The Likelihood Analysis of EGRET Data journal April 1996
Relativistic and Slowing Down: The Flow in the Hot Spots of Powerful Radio Galaxies and Quasars journal April 2003
γ-RAY SPECTRAL EVOLUTION OF NGC 1275 OBSERVED WITH FERMI LARGE AREA TELESCOPE journal April 2010
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MISALIGNED ACTIVE GALACTIC NUCLEI journal August 2010
Statistical evidence on the dynamical evolution of extended radio sources journal October 1979
Evidence that the bursting component of the X-ray radiation from 3C 111 originates in the PC-scale jet journal December 2011
Gamma-ray Light Curves and Variability of Bright Fermi-Detected Blazars text January 2010
A Simultaneous RXTE and XMM-Newton Observation of the Broad-Line Radio Galaxy 3C 111 text January 2004
Connection Between the Accretion disk and jet in the Radio Galaxy 3c 111 journal May 2011
An origin of the radio jet in M87 at the location of the central black hole journal September 2011
On the origin of the γ -ray emission from the flaring blazar PKS 1222+216 journal October 2011
Very High Energy Gamma-Ray Observations of a Strong Flaring Activity in M87 in 2008 February text January 2008
The high-energy view of the broad-line radio galaxy 3C 111: High-energy view of 3C 111 journal October 2011
The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope text January 2010
Gamma‐Ray Emission from the Broad‐Line Radio Galaxy 3C 111 journal December 2008
On the Location of the γ-Ray Outburst Emission in the bl Lacertae Object ao 0235+164 Through Observations Across the Electromagnetic Spectrum journal June 2011
Implications for the structure of the relativistic jet from multiwavelength observations of NGC 6251 journal August 2011
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION journal May 2009
The Trails of Superluminal Jet Components in 3C111 text January 2008
FERMI LARGE AREA TELESCOPE DETECTION OF PULSED γ-RAYS FROM THE VELA-LIKE PULSARS PSR J1048–5832 AND PSR J2229+6114 journal November 2009
Accurate Redshifts and Classifications for 110 Radio‐Loud Active Galactic Nuclei journal January 2004
The Outburst of HST‐1 in the M87 Jet journal March 2006
BROAD-LINE RADIO GALAXIES OBSERVED WITH FERMI -LAT: THE ORIGIN OF THE GeV γ-RAY EMISSION journal September 2011
Probing the Inner Jet of the Quasar PKS 1510-089 with Multi-waveband Monitoring during Strong Gamma-ray Activity text January 2010
GAMMA-RAY LIGHT CURVES AND VARIABILITY OF BRIGHT FERMI -DETECTED BLAZARS journal September 2010
Fast Variability of Tera-Electron Volt   Rays from the Radio Galaxy M87 journal December 2006
Very High Energy Gamma-Ray Observations of Strong Flaring Activity in M87 in 2008 February journal August 2008
LOCATION OF γ-RAY FLARE EMISSION IN THE JET OF THE BL LACERTAE OBJECT OJ287 MORE THAN 14 pc FROM THE CENTRAL ENGINE journal December 2010
FERMI LARGE AREA TELESCOPE GAMMA-RAY DETECTION OF THE RADIO GALAXY M87 journal November 2009
Fast TeV variability from misaligned minijets in the jet of M87 journal March 2010
Connection between the Accretion Disk and Jet in the Radio Galaxy 3C 111 text January 2011
Observation of Gamma‐Ray Emission from the Galaxy M87 above 250 GeV with VERITAS1 journal May 2008
Probing the Inner jet of the Quasar pks 1510–089 with Multi-Waveband Monitoring During Strong Gamma-Ray Activity journal February 2010
Broad Line Radio Galaxies Observed with Fermi-LAT: The Origin of the GeV Gamma-Ray Emission text January 2011
The Trails of Superluminal Jet Components in 3C 111 journal June 2008
Implications for the structure of the relativistic jet from multiwavelength observations of NGC 6251 text January 2011
Observational evidence for the accretion-disk origin for a radio jet in an active galaxy journal June 2002
Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87 text January 2009
Structural Variability of 3C 111 on Parsec Scales journal January 2012

Cited By (22)

The Connection Between the Radio jet and the Gamma-Ray Emission in the Radio Galaxy 3c 120 journal July 2015
SUZAKU OBSERVATIONS OF γ-RAY BRIGHT RADIO GALAXIES: ORIGIN OF THE X-RAY EMISSION AND BROADBAND MODELING journal December 2014
The Gamma-Ray Source agl J2241+4454 as the Possible Counterpart of mwc 656 journal September 2016
Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron: II. Observations of 3C 273 at minimum activity⋆ journal August 2017
Discovery of a Fanaroff–Riley type 0 radio galaxy emitting at γ-ray energies journal January 2016
Gamma-ray emission in radio galaxies under the VLBI scope: I. Parsec-scale jet kinematics and high-energy properties of journal July 2019
Six Years of Fermi-Lat and Multi-Wavelength Monitoring of the Broad-Line Radio Galaxy 3c 120: jet Dissipation at Sub-Parsec Scales from the Central Engine journal January 2015
Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron II. Observations of 3C 273 at minimum activity text January 2017
An outburst scenario for the X-ray spectral variability in 3C 111 journal July 2013
Signatures of the Disk–Jet Coupling in the Broad-line Radio Quasar 4C+74.26 journal October 2018
Signatures of the disk-jet coupling in the Broad-line Radio Quasar 4C+74.26 text January 2018
Comparison of ejection events in the jet and accretion disc outflows in 3C 111: Jet and disc outflows in 3C 111 journal June 2012
Fermi-LAT observation of nonblazar AGNs journal June 2018
An outburst scenario for the X-ray spectral variability in 3C 111 text January 2013
FIRST DETECTION IN GAMMA-RAYS OF A YOUNG RADIO GALAXY: FERMI -LAT OBSERVATIONS OF THE COMPACT SYMMETRIC OBJECT PKS 1718−649 journal April 2016
JET EMISSION IN YOUNG RADIO SOURCES: A FERMI LARGE AREA TELESCOPE GAMMA-RAY VIEW journal December 2013
Suzaku Observations of gamma-Ray Bright Radio Galaxies: Origin of the X-ray Emission and Broad-Band Modelin text January 2014
Radio/X-ray monitoring of the broad-line radio galaxy 3C 382. High-energy view with XMM–Newton and NuSTAR journal May 2018
Faint γ-ray sources at low redshift: the radio galaxy IC 1531 journal September 2018
Radio/X-ray monitoring of the broad-line radio galaxy 3C 382. High-energy view with XMM-Newton and NuSTAR text January 2018
The Circinus Galaxy Revisited with 10 yr Fermi -LAT Data journal November 2019
Fermi-LAT Observation of Non-Blazar AGNs text January 2018

Similar Records

THE {gamma}-RAY EMISSION REGION IN THE FANAROFF-RILEY II RADIO GALAXY 3C 111
Journal Article · Sun May 20 00:00:00 EDT 2012 · Astrophysical Journal Letters · OSTI ID:1356730

CONNECTION BETWEEN THE ACCRETION DISK AND JET IN THE RADIO GALAXY 3C 111
Journal Article · Fri Jun 10 00:00:00 EDT 2011 · Astrophysical Journal · OSTI ID:1356730

SIX YEARS OF FERMI-LAT AND MULTI-WAVELENGTH MONITORING OF THE BROAD-LINE RADIO GALAXY 3C 120: JET DISSIPATION AT SUB-PARSEC SCALES FROM THE CENTRAL ENGINE
Journal Article · Fri Jan 23 00:00:00 EST 2015 · The Astrophysical Journal. Letters (Online) · OSTI ID:1356730