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

Grandi, P.; Torresi, E.; Stanghellini, C.

doi:10.1088/2041-8205/751/1/L3

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

Journal Article · Mon Apr 30 00:00:00 EDT 2012 · The Astrophysical Journal. Letters

DOI:https://doi.org/10.1088/2041-8205/751/1/L3· OSTI ID:1356730

Grandi, P. ^[1]; Torresi, E. ^[1]; Stanghellini, C. ^[2]

National Inst. of Astrophysics-IASFBO, Bologna (Italy)
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.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: Fermi LAT Collaboration

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1356730

Alternate ID(s):: OSTI ID: 22047822

Journal Information:: The Astrophysical Journal. Letters, Journal Name: The Astrophysical Journal. Letters Journal Issue: 1 Vol. 751; ISSN 2041-8205

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

References (53)

Evidence that the bursting component of the X-ray radiation from 3C 111 originates in the PC-scale jet Bell, M. B.; Comeau, S. P. Astrophysics and Space Science, Vol. 339, Issue 1 https://doi.org/10.1007/s10509-011-0962-9	journal	December 2011
Observational evidence for the accretion-disk origin for a radio jet in an active galaxy Marscher, Alan P.; Jorstad, Svetlana G.; Gómez, José-Luis Nature, Vol. 417, Issue 6889 https://doi.org/10.1038/nature00772	journal	June 2002
An origin of the radio jet in M87 at the location of the central black hole Hada, Kazuhiro; Doi, Akihiro; Kino, Motoki Nature, Vol. 477, Issue 7363 https://doi.org/10.1038/nature10387	journal	September 2011
Implications for the structure of the relativistic jet from multiwavelength observations of NGC 6251 Migliori, G.; Grandi, P.; Torresi, E. Astronomy & Astrophysics, Vol. 533 https://doi.org/10.1051/0004-6361/201116808	journal	August 2011
On the origin of the γ -ray emission from the flaring blazar PKS 1222+216 Tavecchio, F.; Becerra-Gonzalez, J.; Ghisellini, G. Astronomy & Astrophysics, Vol. 534 https://doi.org/10.1051/0004-6361/201117204	journal	October 2011
Detection of TeV gamma-rays from the BL Lac 1ES 1959+650 in its low states and during a major outburst in 2002 Aharonian, F.; Akhperjanian, A.; Beilicke, M. Astronomy & Astrophysics, Vol. 406, Issue 1 https://doi.org/10.1051/0004-6361:20030838	journal	July 2003
Structured jets in TeV BL Lac objects and radiogalaxies: Implications for the observed properties Ghisellini, G.; Tavecchio, F.; Chiaberge, M. Astronomy & Astrophysics, Vol. 432, Issue 2 https://doi.org/10.1051/0004-6361:20041404	journal	March 2005
Unified Schemes for Radio-Loud Active Galactic Nuclei Urry, C. Megan; Padovani, Paolo Publications of the Astronomical Society of the Pacific, Vol. 107 https://doi.org/10.1086/133630	journal	June 1995
3C 111 - A luminous radio galaxy with a highly collimated jet Linfield, R.; Perley, R. The Astrophysical Journal, Vol. 279 https://doi.org/10.1086/161865	journal	April 1984
The Likelihood Analysis of EGRET Data Mattox, J. R.; Bertsch, D. L.; Chiang, J. The Astrophysical Journal, Vol. 461 https://doi.org/10.1086/177068	journal	April 1996
A two-phase model for the X-ray emission from Seyfert galaxies Haardt, F.; Maraschi, L. The Astrophysical Journal, Vol. 380 https://doi.org/10.1086/186171	journal	October 1991
Relativistic and Slowing Down: The Flow in the Hot Spots of Powerful Radio Galaxies and Quasars Georganopoulos, Markos; Kazanas, Demosthenes The Astrophysical Journal, Vol. 589, Issue 1 https://doi.org/10.1086/375796	journal	April 2003
Accurate Redshifts and Classifications for 110 Radio‐Loud Active Galactic Nuclei Eracleous, Michael; Halpern, Jules P. The Astrophysical Journal Supplement Series, Vol. 150, Issue 1 https://doi.org/10.1086/379823	journal	January 2004
A Simultaneous RXTE and XMM‐Newton Observation of the Broad‐Line Radio Galaxy 3C 111 Lewis, Karen T.; Eracleous, Michael; Gliozzi, Mario The Astrophysical Journal, Vol. 622, Issue 2 https://doi.org/10.1086/428380	journal	April 2005
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array Jorstad, Svetlana G.; Marscher, Alan P.; Lister, Matthew L. The Astronomical Journal, Vol. 130, Issue 4 https://doi.org/10.1086/444593	journal	October 2005
The Outburst of HST‐1 in the M87 Jet Harris, D. E.; Cheung, C. C.; Biretta, J. A. The Astrophysical Journal, Vol. 640, Issue 1 https://doi.org/10.1086/500081	journal	March 2006
The Trails of Superluminal Jet Components in 3C 111 Kadler, M.; Ros, E.; Perucho, M. The Astrophysical Journal, Vol. 680, Issue 2 https://doi.org/10.1086/529539	journal	June 2008
Observation of Gamma‐Ray Emission from the Galaxy M87 above 250 GeV with VERITAS1 Acciari, V. A.; Beilicke, M.; Blaylock, G. The Astrophysical Journal, Vol. 679, Issue 1 https://doi.org/10.1086/587458	journal	May 2008
Gamma‐Ray Emission from the Broad‐Line Radio Galaxy 3C 111 Hartman, R. C.; Kadler, M.; Tueller, J. The Astrophysical Journal, Vol. 688, Issue 2 https://doi.org/10.1086/592138	journal	December 2008
Very High Energy Gamma-Ray Observations of Strong Flaring Activity in M87 in 2008 February Albert, J.; Aliu, E.; Anderhub, H. The Astrophysical Journal, Vol. 685, Issue 1 https://doi.org/10.1086/592348	journal	August 2008
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION Atwood, W. B.; Abdo, A. A.; Ackermann, M. The Astrophysical Journal, Vol. 697, Issue 2 https://doi.org/10.1088/0004-637X/697/2/1071	journal	May 2009
FERMI LARGE AREA TELESCOPE DETECTION OF PULSED γ-RAYS FROM THE VELA-LIKE PULSARS PSR J1048–5832 AND PSR J2229+6114 Abdo, A. A.; Ackermann, M.; Ajello, M. The Astrophysical Journal, Vol. 706, Issue 2 https://doi.org/10.1088/0004-637X/706/2/1331	journal	November 2009
FERMI LARGE AREA TELESCOPE GAMMA-RAY DETECTION OF THE RADIO GALAXY M87 Abdo, A. A.; Ackermann, M.; Ajello, M. The Astrophysical Journal, Vol. 707, Issue 1 https://doi.org/10.1088/0004-637X/707/1/55	journal	November 2009
THE FIRST CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE Abdo, A. A.; Ackermann, M.; Ajello, M. The Astrophysical Journal, Vol. 715, Issue 1 https://doi.org/10.1088/0004-637X/715/1/429	journal	April 2010
γ-RAY SPECTRAL EVOLUTION OF NGC 1275 OBSERVED WITH FERMI LARGE AREA TELESCOPE Kataoka, J.; Stawarz, Ł.; Cheung, C. C. The Astrophysical Journal, Vol. 715, Issue 1 https://doi.org/10.1088/0004-637X/715/1/554	journal	April 2010
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MISALIGNED ACTIVE GALACTIC NUCLEI Abdo, A. A.; Ackermann, M.; Ajello, M. The Astrophysical Journal, Vol. 720, Issue 1 https://doi.org/10.1088/0004-637X/720/1/912	journal	August 2010
GAMMA-RAY LIGHT CURVES AND VARIABILITY OF BRIGHT FERMI -DETECTED BLAZARS Abdo, A. A.; Ackermann, M.; Ajello, M. The Astrophysical Journal, Vol. 722, Issue 1 https://doi.org/10.1088/0004-637X/722/1/520	journal	September 2010
Connection Between the Accretion disk and jet in the Radio Galaxy 3c 111 Chatterjee, Ritaban; Marscher, Alan P.; Jorstad, Svetlana G. The Astrophysical Journal, Vol. 734, Issue 1 https://doi.org/10.1088/0004-637X/734/1/43	journal	May 2011
BROAD-LINE RADIO GALAXIES OBSERVED WITH FERMI -LAT: THE ORIGIN OF THE GeV γ-RAY EMISSION Kataoka, J.; Stawarz, Ł.; Takahashi, Y. The Astrophysical Journal, Vol. 740, Issue 1 https://doi.org/10.1088/0004-637X/740/1/29	journal	September 2011
THE SECOND CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE Ackermann, M.; Ajello, M.; Allafort, A. The Astrophysical Journal, Vol. 743, Issue 2 https://doi.org/10.1088/0004-637X/743/2/171	journal	December 2011
FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG Nolan, P. L.; Abdo, A. A.; Ackermann, M. The Astrophysical Journal Supplement Series, Vol. 199, Issue 2 https://doi.org/10.1088/0067-0049/199/2/31	journal	March 2012
Probing the Inner jet of the Quasar pks 1510–089 with Multi-Waveband Monitoring During Strong Gamma-Ray Activity Marscher, Alan P.; Jorstad, Svetlana G.; Larionov, Valeri M. The Astrophysical Journal, Vol. 710, Issue 2 https://doi.org/10.1088/2041-8205/710/2/L126	journal	February 2010
LOCATION OF γ-RAY FLARE EMISSION IN THE JET OF THE BL LACERTAE OBJECT OJ287 MORE THAN 14 pc FROM THE CENTRAL ENGINE Agudo, Iván; Jorstad, Svetlana G.; Marscher, Alan P. The Astrophysical Journal, Vol. 726, Issue 1 https://doi.org/10.1088/2041-8205/726/1/L13	journal	December 2010
On the Location of the γ-Ray Outburst Emission in the bl Lacertae Object ao 0235+164 Through Observations Across the Electromagnetic Spectrum Agudo, Iván; Marscher, Alan P.; Jorstad, Svetlana G. The Astrophysical Journal, Vol. 735, Issue 1 https://doi.org/10.1088/2041-8205/735/1/L10	journal	June 2011
Statistical evidence on the dynamical evolution of extended radio sources Longair, M. S.; Riley, J. M. Monthly Notices of the Royal Astronomical Society, Vol. 188, Issue 3 https://doi.org/10.1093/mnras/188.3.625	journal	October 1979
Fast TeV variability from misaligned minijets in the jet of M87 Giannios, Dimitrios; Uzdensky, Dmitri A.; Begelman, Mitchell C. Monthly Notices of the Royal Astronomical Society, Vol. 402, Issue 3 https://doi.org/10.1111/j.1365-2966.2009.16045.x	journal	March 2010
The high-energy view of the broad-line radio galaxy 3C 111: High-energy view of 3C 111 Ballo, L.; Braito, V.; Reeves, J. N. Monthly Notices of the Royal Astronomical Society, Vol. 418, Issue 4 https://doi.org/10.1111/j.1365-2966.2011.19629.x	journal	October 2011
Fast Variability of Tera-Electron Volt Rays from the Radio Galaxy M87 Aharonian, F.; Akhperjanian, A. G.; Bazer-Bachi, A. R. Science, Vol. 314, Issue 5804 https://doi.org/10.1126/science.1134408	journal	December 2006
Fermi Gamma-Ray Imaging of a Radio Galaxy Abdo, A. A.; Ackermann, M.; Ajello, M. Science, Vol. 328, Issue 5979 https://doi.org/10.1126/science.1184656	journal	April 2010
Structural Variability of 3C 111 on Parsec Scales Grossberger, C.; Kadler, M.; Wilms, J. Acta Polytechnica, Vol. 52, Issue 1 https://doi.org/10.14311/1500	journal	January 2012
The Trails of Superluminal Jet Components in 3C111 Kadler, M.; Ros, E.; Perucho, M. arXiv https://doi.org/10.48550/arxiv.0801.0617	text	January 2008
Very High Energy Gamma-Ray Observations of a Strong Flaring Activity in M87 in 2008 February Collaboration, Magic; Albert, J. arXiv https://doi.org/10.48550/arxiv.0806.0988	text	January 2008
Fast TeV variability from misaligned minijets in the jet of M87 Giannios, Dimitrios; Uzdensky, Dmitri A.; Begelman, Mitchell C. arXiv https://doi.org/10.48550/arxiv.0907.5005	text	January 2009
Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87 Collaboration, The Fermi LAT; Abdo, A. A.; Harris, D. E. arXiv https://doi.org/10.48550/arxiv.0910.3565	text	January 2009
Probing the Inner Jet of the Quasar PKS 1510-089 with Multi-waveband Monitoring during Strong Gamma-ray Activity Marscher, Alan P.; Jorstad, Svetlana G.; Larionov, Valeri M. arXiv https://doi.org/10.48550/arxiv.1001.2574	text	January 2010
The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope Abdo, A. A. arXiv https://doi.org/10.48550/arxiv.1002.0150	text	January 2010
Gamma-ray Light Curves and Variability of Bright Fermi-Detected Blazars Abdo, A. A. arXiv https://doi.org/10.48550/arxiv.1004.0348	text	January 2010
Location of gamma-ray Flare Emission in the Jet of the BL Lacertae Object OJ287 more than 14pc from the Central Engine Agudo, Ivan; Jorstad, Svetlana G.; Marscher, Alan P. arXiv https://doi.org/10.48550/arxiv.1011.6454	text	January 2010
Connection between the Accretion Disk and Jet in the Radio Galaxy 3C 111 Chatterjee, Ritaban; Marscher, Alan P.; Jorstad, Svetlana G. arXiv https://doi.org/10.48550/arxiv.1104.0663	text	January 2011
Broad Line Radio Galaxies Observed with Fermi-LAT: The Origin of the GeV Gamma-Ray Emission Kataoka, J.; Stawarz, L.; Takahashi, Y. arXiv https://doi.org/10.48550/arxiv.1107.3370	text	January 2011
Implications for the structure of the relativistic jet from multiwavelength observations of NGC 6251 Migliori, G.; Grandi, P.; Torresi, E. arXiv https://doi.org/10.48550/arxiv.1107.4302	text	January 2011
A Simultaneous RXTE and XMM-Newton Observation of the Broad-Line Radio Galaxy 3C 111 Lewis, Karen T.; Eracleous, Michael; Gliozzi, Mario arXiv https://doi.org/10.48550/arxiv.astro-ph/0412537	text	January 2004
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array Jorstad, Svetlana G.; Marscher, Alan P.; Lister, Matthew L. arXiv https://doi.org/10.48550/arxiv.astro-ph/0502501	text	January 2005

Cited By (23)

Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron: II. Observations of 3C 273 at minimum activity⋆ Bruni, G.; Gómez, J. L.; Casadio, C. Astronomy & Astrophysics, Vol. 604 https://doi.org/10.1051/0004-6361/201731220	journal	August 2017
Fermi-LAT observation of nonblazar AGNs Sahakyan, N.; Baghmanyan, V.; Zargaryan, D. Astronomy & Astrophysics, Vol. 614 https://doi.org/10.1051/0004-6361/201732304	journal	June 2018
Gamma-ray emission in radio galaxies under the VLBI scope: I. Parsec-scale jet kinematics and high-energy properties of Angioni, R.; Ros, E.; Kadler, M. Astronomy & Astrophysics, Vol. 627 https://doi.org/10.1051/0004-6361/201935697	journal	July 2019
Diffuse γ-Ray Emission from Misaligned Active Galactic Nuclei Di Mauro, M.; Calore, F.; Donato, F. The Astrophysical Journal, Vol. 780, Issue 2 https://doi.org/10.1088/0004-637x/780/2/161	journal	December 2013
JET EMISSION IN YOUNG RADIO SOURCES: A FERMI LARGE AREA TELESCOPE GAMMA-RAY VIEW Migliori, G.; Siemiginowska, A.; Kelly, B. C. The Astrophysical Journal, Vol. 780, Issue 2 https://doi.org/10.1088/0004-637x/780/2/165	journal	December 2013
SUZAKU OBSERVATIONS OF γ-RAY BRIGHT RADIO GALAXIES: ORIGIN OF THE X-RAY EMISSION AND BROADBAND MODELING Fukazawa, Yasushi; Finke, Justin; Stawarz, Łukasz The Astrophysical Journal, Vol. 798, Issue 2 https://doi.org/10.1088/0004-637x/798/2/74	journal	December 2014
The Connection Between the Radio jet and the Gamma-Ray Emission in the Radio Galaxy 3c 120 Casadio, Carolina; Gómez, José L.; Grandi, Paola The Astrophysical Journal, Vol. 808, Issue 2 https://doi.org/10.1088/0004-637x/808/2/162	journal	July 2015
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 Tanaka, Y. T.; Doi, A.; Inoue, Y. The Astrophysical Journal, Vol. 799, Issue 2 https://doi.org/10.1088/2041-8205/799/2/l18	journal	January 2015
An outburst scenario for the X-ray spectral variability in 3C 111 Tombesi, F.; Reeves, J. N.; Reynolds, C. S. Monthly Notices of the Royal Astronomical Society, Vol. 434, Issue 3 https://doi.org/10.1093/mnras/stt1213	journal	July 2013
Discovery of a Fanaroff–Riley type 0 radio galaxy emitting at γ-ray energies Grandi, Paola; Capetti, Alessandro; Baldi, Ranieri D. Monthly Notices of the Royal Astronomical Society, Vol. 457, Issue 1 https://doi.org/10.1093/mnras/stv2846	journal	January 2016
Radio/X-ray monitoring of the broad-line radio galaxy 3C 382. High-energy view with XMM–Newton and NuSTAR Ursini, F.; Petrucci, P-O; Matt, G. Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 2 https://doi.org/10.1093/mnras/sty1258	journal	May 2018
Faint γ-ray sources at low redshift: the radio galaxy IC 1531 Bassi, T.; Migliori, G.; Grandi, P. Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 4 https://doi.org/10.1093/mnras/sty2622	journal	September 2018
Comparison of ejection events in the jet and accretion disc outflows in 3C 111: Jet and disc outflows in 3C 111 Tombesi, F.; Sambruna, R. M.; Marscher, A. P. Monthly Notices of the Royal Astronomical Society, Vol. 424, Issue 1 https://doi.org/10.1111/j.1365-2966.2012.21266.x	journal	June 2012
The Gamma-Ray Source agl J2241+4454 as the Possible Counterpart of mwc 656 Munar-Adrover, Pere; Sabatini, S.; Piano, Giovanni The Astrophysical Journal, Vol. 829, Issue 2 https://doi.org/10.3847/0004-637x/829/2/101	journal	September 2016
Signatures of the Disk–Jet Coupling in the Broad-line Radio Quasar 4C+74.26 Bhatta, G.; Stawarz, Ł.; Markowitz, A. The Astrophysical Journal, Vol. 866, Issue 2 https://doi.org/10.3847/1538-4357/aade9c	journal	October 2018
The Circinus Galaxy Revisited with 10 yr Fermi -LAT Data Guo, Xiao-Lei; Xin, Yu-Liang; Liao, Neng-Hui The Astrophysical Journal, Vol. 885, Issue 2 https://doi.org/10.3847/1538-4357/ab44ba	journal	November 2019
FIRST DETECTION IN GAMMA-RAYS OF A YOUNG RADIO GALAXY: FERMI -LAT OBSERVATIONS OF THE COMPACT SYMMETRIC OBJECT PKS 1718−649 Migliori, G.; Siemiginowska, A.; Sobolewska, M. The Astrophysical Journal, Vol. 821, Issue 2 https://doi.org/10.3847/2041-8205/821/2/l31	journal	April 2016
An outburst scenario for the X-ray spectral variability in 3C 111 Tombesi, F.; Reeves, J. N.; Reynolds, C. S. arXiv https://doi.org/10.48550/arxiv.1307.0403	text	January 2013
Suzaku Observations of gamma-Ray Bright Radio Galaxies: Origin of the X-ray Emission and Broad-Band Modelin Fukazawa, Yasushi; Finke, Justin; Stawarz, Lukasz arXiv https://doi.org/10.48550/arxiv.1410.2733	text	January 2014
Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron II. Observations of 3C 273 at minimum activity Bruni, G.; Gómez, J. L.; Casadio, C. arXiv https://doi.org/10.48550/arxiv.1707.01386	text	January 2017
Fermi-LAT Observation of Non-Blazar AGNs Sahakyan, N.; Baghmanyan, V.; Zargaryan, D. arXiv https://doi.org/10.48550/arxiv.1801.09381	text	January 2018
Radio/X-ray monitoring of the broad-line radio galaxy 3C 382. High-energy view with XMM-Newton and NuSTAR Ursini, F.; Petrucci, P. -O.; Matt, G. arXiv https://doi.org/10.48550/arxiv.1805.06229	text	January 2018
Signatures of the disk-jet coupling in the Broad-line Radio Quasar 4C+74.26 Bhatta, G.; Stawarz, L.; Markowitz, A. arXiv https://doi.org/10.48550/arxiv.1805.06957	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:22047822

Fanaroff-Riley I galaxies as the parent population of BL Lacertae objects. I. X-ray constraints

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Astrophysical Journal; (USA) · OSTI ID:6692430

Fermi Large Area Telescope Observations Of Misaligned Active Galactic Nuclei

Journal Article · Thu Aug 12 20:00:00 EDT 2010 · The Astrophysical Journal · OSTI ID:1357528

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
galaxies: active
galaxies: jets

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

Citation Formats

References (53)

Cited By (23)

Similar Records

Related Subjects