Fermi Large Area Telescope Observations Of Misaligned Active Galactic Nuclei

Abdo, A. A.

doi:10.1088/0004-637X/720/1/912

Fermi Large Area Telescope Observations Of Misaligned Active Galactic Nuclei

Journal Article · Fri Aug 13 00:00:00 EDT 2010 · The Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/720/1/912· OSTI ID:1357528

Abdo, A. A. ^[1]

Naval Research Lab. (NRL), Washington, DC (United States); et al.

Analysis is presented for 15 months of data taken with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope for 11 non-blazar active galactic nuclei (AGNs), including seven FRI radio galaxies and four FRII radio sources consisting of two FRII radio galaxies and two steep spectrum radio quasars. The broad line FRI radio galaxy 3C 120 is reported here as a γ-ray source for the first time. The analysis is based on directional associations of LAT sources with radio sources in the 3CR, 3CRR, and MS4 (collectively referred to as 3C-MS) catalogs. Seven of the eleven LAT sources associated with 3C-MS radio sources have spectral indices larger than 2.3 and, except for the FRI radio galaxy NGC 1275 that shows possible spectral curvature, are well described by a power law. No evidence for time variability is found for any sources other than NGC 1275. The γ-ray luminosities of FRI radio galaxies are significantly smaller than those of the BL Lac objects detected by the LAT, whereas the γ-ray luminosities of the FRII sources are quite similar to those of FSRQs, which could reflect different beaming factors for the γ-ray emission. A core dominance (CD) study of the 3CRR sample indicates that sources closer to the jet axis are preferentially detected with the Fermi LAT, insofar as the γ-ray-detected misaligned AGNs have larger CD at a given average radio flux. The results are discussed in view of the AGN unification scenario.

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:: 1357528

Alternate ID(s):: OSTI ID: 21460093

Journal Information:: The Astrophysical Journal, Journal Name: The Astrophysical Journal Journal Issue: 1 Vol. 720; ISSN 0004-637X

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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High-energy emission processes in M87 de Jong, S.; Beckmann, V.; Soldi, S. Monthly Notices of the Royal Astronomical Society, Vol. 450, Issue 4 https://doi.org/10.1093/mnras/stv927	journal	May 2015
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
Intra-night optical variability of misaligned active galaxies Bhattacharya, Debbijoy; Gulati, Sanna; Stalin, C. S. Monthly Notices of the Royal Astronomical Society, Vol. 483, Issue 3 https://doi.org/10.1093/mnras/sty3299	journal	December 2018
H.E.S.S. discovery of very high energy γ-ray emission from PKS 0625−354 Abdalla, H.; Abramowski, A.; Aharonian, F. Monthly Notices of the Royal Astronomical Society, Vol. 476, Issue 3 https://doi.org/10.1093/mnras/sty439	journal	February 2018
The GENJI Programme: Gamma-Ray Emitting Notable AGN Monitoring by Japanese VLBI Nagai, Hiroshi; Kino, Motoki; Niinuma, Kotaro Publications of the Astronomical Society of Japan, Vol. 65, Issue 2 https://doi.org/10.1093/pasj/65.2.24	journal	April 2013
High-energy γ-ray properties of the Fanaroff-Riley type I radio galaxy NGC 1275: High-energy γ-ray properties of the FR I radio galaxy NGC 1275 Brown, Anthony M.; Adams, Jenni Monthly Notices of the Royal Astronomical Society, Vol. 413, Issue 4 https://doi.org/10.1111/j.1365-2966.2011.18351.x	journal	March 2011
SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy: SBS 0846+513: a new γ-ray-emitting NLS1 D'Ammando, F.; Orienti, M.; Finke, J. Monthly Notices of the Royal Astronomical Society, Vol. 426, Issue 1 https://doi.org/10.1111/j.1365-2966.2012.21707.x	journal	September 2012
VLBI and single-dish monitoring of 3C 84 for the period 2009-2011: Radio monitoring of 3C 84 Nagai, H.; Orienti, M.; Kino, M. Monthly Notices of the Royal Astronomical Society: Letters, Vol. 423, Issue 1 https://doi.org/10.1111/j.1745-3933.2012.01269.x	journal	May 2012
From the Blazar Sequence to the Blazar Envelope: Revisiting the Relativistic jet Dichotomy in Radio-Loud Active Galactic Nuclei Meyer, Eileen T.; Fossati, Giovanni; Georganopoulos, Markos IOP https://doi.org/10.13016/m2mqfb-qm3t	collection	January 2011
The high-energy gamma-ray detection of G73.9+0.9, a supernova remnant interacting with a molecular cloud Zdziarski, A. A.; Malyshev, D.; De Ona Wilhelmi, E. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2016-01252	text	January 2016
H.E.S.S. discovery of very high energy $\gamma$-ray emission from PKS 0625-354 Abdalla, H.; Abramowski, A.; Aharonian, F. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-01567	text	January 2018
Fast γ-ray Variability: A Common Feature and Powerful Probe for Jetted AGNs Liao, Neng-hui Galaxies, Vol. 6, Issue 3 https://doi.org/10.3390/galaxies6030068	journal	July 2018
The High Energy View of FR0 Radio Galaxies Baldi, Ranieri Diego; Torresi, Eleonora; Migliori, Giulia Galaxies, Vol. 7, Issue 3 https://doi.org/10.3390/galaxies7030076	journal	September 2019
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
DISCOVERY OF γ -RAY EMISSION FROM THE RADIO-INTERMEDIATE QUASAR III ZW 2: VIOLENT JET ACTIVITY WITH INTRADAY γ -RAY VARIABILITY Liao, Neng-Hui; Xin, Yu-Liang; Fan, Xu-Liang The Astrophysical Journal Supplement Series, Vol. 226, Issue 2 https://doi.org/10.3847/0067-0049/226/2/17	journal	October 2016
Rapid Gamma-Ray Variability of NGC 1275 Baghmanyan, V.; Gasparyan, S.; Sahakyan, N. The Astrophysical Journal, Vol. 848, Issue 2 https://doi.org/10.3847/1538-4357/aa8c7b	journal	October 2017
X-Ray and GeV Gamma-Ray Variability of the Radio Galaxy NGC 1275 Fukazawa, Yasushi; Shiki, Kensei; Tanaka, Yasuyuki The Astrophysical Journal, Vol. 855, Issue 2 https://doi.org/10.3847/1538-4357/aaabc0	journal	March 2018
Coronal Proerties of the Seyfert 1 Galaxy 3C 120 with NuSTAR Rani, Priyanka; Stalin, C. S. The Astrophysical Journal, Vol. 856, Issue 2 https://doi.org/10.3847/1538-4357/aab356	journal	March 2018
The Origins of the Gamma-Ray Flux Variations of NGC 1275 Based on Eight Years of Fermi -LAT Observations Tanada, K.; Kataoka, J.; Arimoto, M. The Astrophysical Journal, Vol. 860, Issue 1 https://doi.org/10.3847/1538-4357/aac26b	journal	June 2018
Revealing the Broad Line Region of NGC 1275: The Relationship to Jet Power Punsly, Brian; Marziani, Paola; Bennert, Vardha N. The Astrophysical Journal, Vol. 869, Issue 2 https://doi.org/10.3847/1538-4357/aaec75	journal	December 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
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
The radio/gamma-ray connection in Active Galactic Nuclei in the era of the Fermi Large Area Telescope Ackermann, M.; Ajello, M.; Allafort, A. arXiv https://doi.org/10.48550/arxiv.1108.0501	text	January 2011
GENJI Programme: Gamma-ray Emitting Notable AGN Monitoring by Japanese VLBI Nagai, Hiroshi; Kino, Motoki; Niinuma, Kotaro arXiv https://doi.org/10.48550/arxiv.1210.2496	text	January 2012
Compton Dominance and the Blazar Sequence Finke, Justin arXiv https://doi.org/10.48550/arxiv.1212.0869	text	January 2012
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
High-energy Emission Processes in M 87 de Jong, S.; Beckmann, V.; Soldi, S. arXiv https://doi.org/10.48550/arxiv.1504.06517	preprint	January 2015
The high-energy gamma-ray detection of G73.9+0.9, a supernova remnant interacting with a molecular cloud Zdziarski, Andrzej A.; Malyshev, Denys; Wilhelmi, Emma de Ona arXiv https://doi.org/10.48550/arxiv.1509.04046	text	January 2015
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
Revealing the Broad Line Region of NGC 1275: The Relationship to Jet Power Punsly, Brian; Marziani, Paola; Bennert, Vardha N. arXiv https://doi.org/10.48550/arxiv.1810.11716	text	January 2018
The High Energy View of FR0 Radio Galaxies Baldi, Ranieri D.; Torresi, Eleonora; Migliori, Giulia arXiv https://doi.org/10.48550/arxiv.1909.04113	preprint	January 2019
Gamma-ray observations of low-luminosity active galactic nuclei de Menezes, Raniere; Nemmen, Rodrigo; Finke, Justin D. arXiv https://doi.org/10.48550/arxiv.2001.03184	text	January 2020

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