Gamma-ray observations of low-luminosity active galactic nuclei
Abstract
ABSTRACT The majority of the activity around nearby (z ≈ 0) supermassive black holes is found in low-luminosity active galactic nuclei (LLAGN), the most of them being classified as low-ionization nuclear emission regions. Although these sources are well studied from radio up to X-rays, they are poorly understood in γ-rays. In this work, we take advantage of the all sky-surveying capabilities of the Large Area Telescope on board Fermi Gamma-ray Space Telescope to study the whole Palomar sample of LLAGN in γ-rays. Precisely, the four radio-brightest LLAGN in the sample are identified as significant γ-ray emitters, all of which are recognized as powerful Fanaroff–Riley I galaxies. These results suggest that the presence of powerful radio jets is of substantial importance for observing a significant γ-ray counterpart even if these jets are misaligned with respect to the line of sight. We also find that most of the X-ray-brightest LLAGN do not have a significant γ-ray and strong radio emission, suggesting that the X-rays come mainly from the accretion flow in these cases. A detailed analysis of the spectral energy distributions (SEDs) of NGC 315 and NGC 4261, both detected in γ-rays, is provided where we make a detailed comparison between the predicted hadronicmore »
- Authors:
-
[3];
[2];
- Departamento de Astronomia, Instituto de Astronomia, Universidade de São Paulo,Geofísica e Ciências Atmosféricas, São Paulo, SP 05508-090, Brazil, Dipartimento di Fisica, Università degli Studi di Torino, via Pietro Giuria 1, I-10125 Torino, Italy
- Departamento de Astronomia, Instituto de Astronomia, Universidade de São Paulo,Geofísica e Ciências Atmosféricas, São Paulo, SP 05508-090, Brazil
- U.S. Naval Research Laboratory, Code 7653, 4555 Overlook Ave. SW, Washington, DC, 20375-5352, USA
- Southeastern Universities Research Association, Washington, DC 20005, USA, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA, Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, MD 20771, USA, Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1595848
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 492 Journal Issue: 3; Journal ID: ISSN 0035-8711
- Publisher:
- Oxford University Press
- Country of Publication:
- United Kingdom
- Language:
- English
Citation Formats
de Menezes, Raniere, Nemmen, Rodrigo, Finke, Justin D., Almeida, Ivan, and Rani, Bindu. Gamma-ray observations of low-luminosity active galactic nuclei. United Kingdom: N. p., 2020.
Web. doi:10.1093/mnras/staa083.
de Menezes, Raniere, Nemmen, Rodrigo, Finke, Justin D., Almeida, Ivan, & Rani, Bindu. Gamma-ray observations of low-luminosity active galactic nuclei. United Kingdom. https://doi.org/10.1093/mnras/staa083
de Menezes, Raniere, Nemmen, Rodrigo, Finke, Justin D., Almeida, Ivan, and Rani, Bindu. Thu .
"Gamma-ray observations of low-luminosity active galactic nuclei". United Kingdom. https://doi.org/10.1093/mnras/staa083.
@article{osti_1595848,
title = {Gamma-ray observations of low-luminosity active galactic nuclei},
author = {de Menezes, Raniere and Nemmen, Rodrigo and Finke, Justin D. and Almeida, Ivan and Rani, Bindu},
abstractNote = {ABSTRACT The majority of the activity around nearby (z ≈ 0) supermassive black holes is found in low-luminosity active galactic nuclei (LLAGN), the most of them being classified as low-ionization nuclear emission regions. Although these sources are well studied from radio up to X-rays, they are poorly understood in γ-rays. In this work, we take advantage of the all sky-surveying capabilities of the Large Area Telescope on board Fermi Gamma-ray Space Telescope to study the whole Palomar sample of LLAGN in γ-rays. Precisely, the four radio-brightest LLAGN in the sample are identified as significant γ-ray emitters, all of which are recognized as powerful Fanaroff–Riley I galaxies. These results suggest that the presence of powerful radio jets is of substantial importance for observing a significant γ-ray counterpart even if these jets are misaligned with respect to the line of sight. We also find that most of the X-ray-brightest LLAGN do not have a significant γ-ray and strong radio emission, suggesting that the X-rays come mainly from the accretion flow in these cases. A detailed analysis of the spectral energy distributions (SEDs) of NGC 315 and NGC 4261, both detected in γ-rays, is provided where we make a detailed comparison between the predicted hadronic γ-ray emission from a radiatively inefficient accretion flow (RIAF) and the γ-ray emission from a leptonic jet-dominated synchrotron self-Compton (SSC) model. Both SEDs are better described by the SSC model, while the RIAF fails to explain the γ-ray observations.},
doi = {10.1093/mnras/staa083},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 3,
volume = 492,
place = {United Kingdom},
year = {Thu Jan 16 00:00:00 EST 2020},
month = {Thu Jan 16 00:00:00 EST 2020}
}
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Works referenced in this record:
The multiwavelength spectrum of NGC 3115: hot accretion flow properties
journal, January 2018
- Almeida, Ivan; Nemmen, Rodrigo; Wong, Ka-Wah
- Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 4
Fermi/LAT broad emission line blazars
journal, February 2015
- Ghisellini, G.; Tavecchio, F.
- Monthly Notices of the Royal Astronomical Society, Vol. 448, Issue 2
A jet-dominated model for a broad-band spectral energy distribution of the nearby low-luminosity active galactic nucleus in M94
journal, March 2017
- van Oers, Pieter; Markoff, Sera; Uttley, Phil
- Monthly Notices of the Royal Astronomical Society, Vol. 468, Issue 1
The Nuclear Regions of the Seyfert Galaxy NGC 4151: Parsec‐Scale H i Absorption and a Remarkable Radio Jet
journal, January 2003
- Mundell, C. G.; Wrobel, J. M.; Pedlar, A.
- The Astrophysical Journal, Vol. 583, Issue 1
Nuclear Activity in Nearby Galaxies
journal, September 2008
- Ho, Luis C.
- Annual Review of Astronomy and Astrophysics, Vol. 46, Issue 1
The γ -ray spectrum of the core of Centaurus A as observed with H.E.S.S. and Fermi -LAT
journal, November 2018
- Abdalla, H.; Abramowski, A.; Aharonian, F.
- Astronomy & Astrophysics, Vol. 619
FERMI /LAT OBSERVATIONS OF SWIFT /BAT SEYFERT GALAXIES: ON THE CONTRIBUTION OF RADIO-QUIET ACTIVE GALACTIC NUCLEI TO THE EXTRAGALACTIC γ-RAY BACKGROUND
journal, November 2011
- Teng, Stacy H.; Mushotzky, Richard F.; Sambruna, Rita M.
- The Astrophysical Journal, Vol. 742, Issue 2
A Parsec‐Scale Accelerating Radio Jet in the Giant Radio Galaxy NGC 315
journal, July 1999
- Cotton, W. D.; Feretti, L.; Giovannini, G.
- The Astrophysical Journal, Vol. 519, Issue 1
VLBA Imaging of NGC 4261: Symmetric Parsec‐scale Jets and the Inner Accretion Region
journal, July 1997
- Jones, Dayton L.; Wehrle, Ann E.
- The Astrophysical Journal, Vol. 484, Issue 1
Possible Origin of Radio Emission from Nonthermal Electrons in hot Accretion Flows for Low-Luminosity Active Galactic Nuclei
journal, January 2013
- Liu, Hu; Wu, Qingwen
- The Astrophysical Journal, Vol. 764, Issue 1
Fermi Gamma-Ray Imaging of a Radio Galaxy
journal, April 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- Science, Vol. 328, Issue 5979
Advection-dominated accretion: A self-similar solution
journal, June 1994
- Narayan, Ramesh; Yi, Insu
- The Astrophysical Journal, Vol. 428
Time correlation between the radio and gamma-ray activity in blazars and the production site of the gamma-ray emission
journal, September 2014
- Max-Moerbeck, W.; Hovatta, T.; Richards, J. L.
- Monthly Notices of the Royal Astronomical Society, Vol. 445, Issue 1
Chandra Imaging of the X‐Ray Core of the Virgo Cluster
journal, November 2002
- Young, A. J.; Wilson, A. S.; Mundell, C. G.
- The Astrophysical Journal, Vol. 579, Issue 2
Radio sources in low-luminosity active galactic nuclei: III. “AGNs” in a distance-limited sample of “LLAGNs”
journal, August 2002
- Nagar, N. M.; Falcke, H.; Wilson, A. S.
- Astronomy & Astrophysics, Vol. 392, Issue 1
Blazar flares powered by plasmoids in relativistic reconnection
journal, July 2016
- Petropoulou, Maria; Giannios, Dimitrios; Sironi, Lorenzo
- Monthly Notices of the Royal Astronomical Society, Vol. 462, Issue 3
A search for 'dwarf' Seyfert nuclei. 2: an optical spectral atlas of the nuclei of nearby galaxies
journal, May 1995
- Ho, L. C.; Filippenko, A. V.; Sargent, W. L.
- The Astrophysical Journal Supplement Series, Vol. 98
γ-rays as a diagnostic of the origin of core radiation in low-luminosity active galactic nuclei: γ-rays from LLAGNs
journal, March 2011
- Takami, Hajime
- Monthly Notices of the Royal Astronomical Society, Vol. 413, Issue 3
Nonthermal Processes in Black Hole-Jet Magnetospheres — Invited Review
journal, August 2011
- Rieger, Frank M.
- International Journal of Modern Physics D, Vol. 20, Issue 09
Magnetic flux Paradigm for Radio Loudness of Active Galactic Nuclei
journal, February 2013
- Sikora, Marek; Begelman, Mitchell C.
- The Astrophysical Journal, Vol. 764, Issue 2
VARIABLE TeV EMISSION AS A MANIFESTATION OF JET FORMATION IN M87?
journal, March 2011
- Levinson, Amir; Rieger, Frank
- The Astrophysical Journal, Vol. 730, Issue 2
Models for jet power in elliptical galaxies: a case for rapidly spinning black holes
journal, June 2007
- Nemmen, R. S.; Bower, R. G.; Babul, A.
- Monthly Notices of the Royal Astronomical Society, Vol. 377, Issue 4
Relativistic Reconnection: an Efficient Source of Non-Thermal Particles
journal, February 2014
- Sironi, Lorenzo; Spitkovsky, Anatoly
- The Astrophysical Journal, Vol. 783, Issue 1
Synchrotron Self‐Compton Analysis of TeV X‐Ray‐Selected BL Lacertae Objects
journal, October 2008
- Finke, Justin D.; Dermer, Charles D.; Böttcher, Markus
- The Astrophysical Journal, Vol. 686, Issue 1
The Likelihood Analysis of EGRET Data
journal, April 1996
- Mattox, J. R.; Bertsch, D. L.; Chiang, J.
- The Astrophysical Journal, Vol. 461
Ion-supported tori and the origin of radio jets
journal, January 1982
- Rees, M. J.; Begelman, M. C.; Blandford, R. D.
- Nature, Vol. 295, Issue 5844
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MISALIGNED ACTIVE GALACTIC NUCLEI
journal, August 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 720, Issue 1
Hot accretion flow in black hole binaries: a link connecting X-rays to the infrared
journal, February 2013
- Veledina, Alexandra; Poutanen, Juri; Vurm, Indrek
- Monthly Notices of the Royal Astronomical Society, Vol. 430, Issue 4
Gamma‐Ray Emission from Advection‐dominated Accretion Flows around Black Holes: Application to the Galactic Center
journal, September 1997
- Mahadevan, Rohan; Narayan, Ramesh; Krolik, Julian
- The Astrophysical Journal, Vol. 486, Issue 1
The Slope of the Black Hole Mass versus Velocity Dispersion Correlation
journal, August 2002
- Tremaine, Scott; Gebhardt, Karl; Bender, Ralf
- The Astrophysical Journal, Vol. 574, Issue 2
SEARCH FOR GAMMA-RAY EMISSION FROM X-RAY-SELECTED SEYFERT GALAXIES WITH FERMI -LAT
journal, February 2012
- Ackermann, M.; Ajello, M.; Allafort, A.
- The Astrophysical Journal, Vol. 747, Issue 2
VLBI observations of a complete sample of radio galaxies. II - The parsec-scale structure of NGC 315
journal, May 1993
- Venturi, T.; Giovannini, G.; Feretti, L.
- The Astrophysical Journal, Vol. 408
Radio-continuum sources in nearby and bright E/S0 galaxies - Active nuclei versus star formation
journal, January 1991
- Wrobel, J. M.; Heeschen, D. S.
- The Astronomical Journal, Vol. 101
The NuSTAR view on hard-TeV BL Lacs
journal, May 2018
- Costamante, L.; Bonnoli, G.; Tavecchio, F.
- Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 3
The Origins of the Gamma-Ray Flux Variations of NGC 1275 Based on Eight Years of Fermi -LAT Observations
journal, June 2018
- Tanada, K.; Kataoka, J.; Arimoto, M.
- The Astrophysical Journal, Vol. 860, Issue 1
On the Origin of Ultraviolet Emission and the Accretion Model of Low-Luminosity Active Galactic Nuclei
journal, December 2010
- Yu, Zhaolong; Yuan, Feng; Ho, Luis C.
- The Astrophysical Journal, Vol. 726, Issue 2
Gamma-ray emission from an accretion flow around a Kerr black hole
journal, April 2003
- Oka, Kazutaka; Manmoto, Tadahiro
- Monthly Notices of the Royal Astronomical Society, Vol. 340, Issue 2
The Palermo Swift -BAT hard X-ray catalogue : III. Results after 54 months of sky survey⋆
journal, November 2010
- Cusumano, G.; La Parola, V.; Segreto, A.
- Astronomy & Astrophysics, Vol. 524
Evidence of Parsec-Scale jets in Low-Luminosity Active Galactic Nuclei
journal, May 2014
- Mezcua, M.; Prieto, M. A.
- The Astrophysical Journal, Vol. 787, Issue 1
The jet and counterjet of 3C 270 (NGC 4261) viewed in the X-ray with Chandra: The jet and counterjet of 3C 270
journal, July 2010
- Worrall, D. M.; Birkinshaw, M.; O'Sullivan, E.
- Monthly Notices of the Royal Astronomical Society, Vol. 408, Issue 2
VLBA Absorption Imaging of Ionized Gas Associated with the Accretion Disk in NGC 1275
journal, February 2000
- Walker, R. C.; Dhawan, V.; Romney, J. D.
- The Astrophysical Journal, Vol. 530, Issue 1
Launching of Active Galactic Nuclei Jets
book, January 2014
- Tchekhovskoy, Alexander
- The Formation and Disruption of Black Hole Jets
Statistical methods for astronomical data with upper limits. II - Correlation and regression
journal, July 1986
- Isobe, T.; Feigelson, E. D.; Nelson, P. I.
- The Astrophysical Journal, Vol. 306
The [ITAL]XMM-Newton[/ITAL] View of the Nucleus of NGC 4261
journal, March 2003
- Sambruna, R. M.; Gliozzi, M.; Eracleous, M.
- The Astrophysical Journal, Vol. 586, Issue 1
Chandra Observations of NGC 4261 (3C 270): Revealing the Jet and Hidden Active Galactic Nucleus in a Type 2 LINER
journal, July 2005
- Zezas, A.; Birkinshaw, M.; Worrall, D. M.
- The Astrophysical Journal, Vol. 627, Issue 2
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009
- Atwood, W. B.; Abdo, A. A.; Ackermann, M.
- The Astrophysical Journal, Vol. 697, Issue 2
A Dual‐Frequency, Multiyear Monitoring Program of Compact Radio Sources
journal, October 2001
- Lazio, T. Joseph W.; Waltman, E. B.; Ghigo, F. D.
- The Astrophysical Journal Supplement Series, Vol. 136, Issue 2
On the fate of gas accreting at a low rate on to a black hole
journal, February 1999
- Blandford, R. D.; Begelman, M. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 303, Issue 1
Evidence for a Massive Black Hole in the Active Galaxy NGC 4261 from Hubble Space Telescope Images and Spectra
journal, October 1996
- Ferrarese, Laura; Ford, Holland C.; Jaffe, Walter
- The Astrophysical Journal, Vol. 470
Core Radio and Optical Emission in the Nuclei of nearby FR I Radio Galaxies
journal, March 2002
- Kleijn, Gijs A. Verdoes; Baum, Stefi A.; de Zeeuw, P. Tim
- The Astronomical Journal, Vol. 123, Issue 3
Internal shocks in the jets of radio-loud quasars
journal, August 2001
- Spada, M.; Ghisellini, G.; Lazzati, D.
- Monthly Notices of the Royal Astronomical Society, Vol. 325, Issue 4
A relativistic model of the radio jets in NGC 315: NGC 315 jet model
journal, September 2005
- Canvin, J. R.; Laing, R. A.; Bridle, A. H.
- Monthly Notices of the Royal Astronomical Society, Vol. 363, Issue 4
The extragalactic gamma-ray sky in the Fermi era
journal, December 2015
- Massaro, Francesco; Thompson, David J.; Ferrara, Elizabeth C.
- The Astronomy and Astrophysics Review, Vol. 24, Issue 1
Radio sources in low-luminosity active galactic nuclei: IV. Radio luminosity function, importance of jet power, and radio properties of the complete Palomar sample
journal, April 2005
- Nagar, N. M.; Falcke, H.; Wilson, A. S.
- Astronomy & Astrophysics, Vol. 435, Issue 2
Radio–X‐Ray Correlation and the “Quiescent State” of Black Hole Sources
journal, August 2005
- Yuan, Feng; Cui, Wei
- The Astrophysical Journal, Vol. 629, Issue 1
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
journal, April 2019
- Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter
- The Astrophysical Journal, Vol. 875, Issue 1
The Galactic Center massive black hole and nuclear star cluster
journal, December 2010
- Genzel, Reinhard; Eisenhauer, Frank; Gillessen, Stefan
- Reviews of Modern Physics, Vol. 82, Issue 4
Low-ionization active galactic nuclei - X-ray or shock heated?
journal, June 1983
- Halpern, J. P.; Steiner, J. E.
- The Astrophysical Journal, Vol. 269
The Morphology of Extragalactic Radio Sources of High and Low Luminosity
journal, April 1974
- Fanaroff, B. L.; Riley, J. M.
- Monthly Notices of the Royal Astronomical Society, Vol. 167, Issue 1
A simultaneous 3.5 and 1.3 mm polarimetric survey of active galactic nuclei in the northern sky
journal, June 2014
- Agudo, I.; Thum, C.; Gómez, J. L.
- Astronomy & Astrophysics, Vol. 566
Monte Carlo performance studies for the site selection of the Cherenkov Telescope Array
journal, July 2017
- Hassan, T.; Arrabito, L.; Bernlöhr, K.
- Astroparticle Physics, Vol. 93
A Search for “Dwarf'' Seyfert Nuclei. V. Demographics of Nuclear Activity in Nearby Galaxies
journal, October 1997
- Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W.
- The Astrophysical Journal, Vol. 487, Issue 2
FERMI LARGE AREA TELESCOPE GAMMA-RAY DETECTION OF THE RADIO GALAXY M87
journal, November 2009
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 707, Issue 1
Some Aspects of Measurement Error in Linear Regression of Astronomical Data
journal, August 2007
- Kelly, Brandon C.
- The Astrophysical Journal, Vol. 665, Issue 2
Locating the γ-ray emission site in Fermi /LAT blazars from correlation analysis between 37 GHz radio and γ-ray light curves
journal, July 2015
- Ramakrishnan, V.; Hovatta, T.; Nieppola, E.
- Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 2
The Extragalactic Gamma-Ray Background from Core-dominated Radio Galaxies
journal, July 2019
- Stecker, Floyd W.; Shrader, Chris R.; Malkan, Matthew. A.
- The Astrophysical Journal, Vol. 879, Issue 2
An Attempt to Probe the Radio Jet Collimation Regions in NGC 4278, NGC 4374 (M84), and NGC 6166
journal, January 2004
- Ly, C.; Walker, R. C.; Wrobel, J. M.
- The Astronomical Journal, Vol. 127, Issue 1
Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energy γ -rays
journal, March 2014
- Aleksić, J.; Ansoldi, S.; Antonelli, L. A.
- Astronomy & Astrophysics, Vol. 564
The Nature of the 10 kilosecond X-ray flare in Sgr A*
journal, November 2001
- Markoff, S.; Falcke, H.; Yuan, F.
- Astronomy & Astrophysics, Vol. 379, Issue 1
Effects of the variability of the nucleus of NGC 1275 on X-ray observations of the surrounding intracluster medium
journal, June 2015
- Fabian, A. C.; Walker, S. A.; Pinto, C.
- Monthly Notices of the Royal Astronomical Society, Vol. 451, Issue 3
Radiatively Inefficient Accretion in Nearby Galaxies
journal, June 2009
- Ho, Luis C.
- The Astrophysical Journal, Vol. 699, Issue 1
Bimodal behavior of accretion disks - Theory and application to Cygnus X-1 transitions
journal, June 1977
- Ichimaru, S.
- The Astrophysical Journal, Vol. 214
Radio Sources in Low‐Luminosity Active Galactic Nuclei. I. VLA Detections of Compact, Flat‐Spectrum Cores
journal, October 2000
- Nagar, Neil M.; Falcke, Heino; Wilson, Andrew S.
- The Astrophysical Journal, Vol. 542, Issue 1
Going with the Flow: Can the Base of Jets Subsume the Role of Compact Accretion Disk Coronae?
journal, December 2005
- Markoff, Sera; Nowak, Michael A.; Wilms, Jorn
- The Astrophysical Journal, Vol. 635, Issue 2
Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities
journal, November 2002
- Woo, Jong‐Hak; Urry, C. Megan
- The Astrophysical Journal, Vol. 579, Issue 2
Gamma-ray activity of Seyfert galaxies and constraints on hot accretion flows
journal, November 2015
- Wojaczyński, Rafał; Niedźwiecki, Andrzej; Xie, Fu-Guo
- Astronomy & Astrophysics, Vol. 584
Very High-Energy Emission from the Direct Vicinity of Rapidly Rotating Black Holes
journal, November 2018
- Hirotani, Kouichi
- Galaxies, Vol. 6, Issue 4
Radiatively Inefficient Accretion Flow in the Nucleus of NGC 1097
journal, June 2006
- Nemmen, Rodrigo S.; Storchi‐Bergmann, Thaisa; Yuan, Feng
- The Astrophysical Journal, Vol. 643, Issue 2
Exploring the role of jets in the radio/X-ray correlations of GX 339-4
journal, December 2002
- Markoff, S.; Nowak, M.; Corbel, S.
- Astronomy & Astrophysics, Vol. 397, Issue 2
Compton Dominance and the Blazar Sequence
journal, January 2013
- Finke, Justin D.
- The Astrophysical Journal, Vol. 763, Issue 2
X-ray nature of the LINER nuclear sources
journal, September 2006
- González-Martín, O.; Masegosa, J.; Márquez, I.
- Astronomy & Astrophysics, Vol. 460, Issue 1
Direct Evidence from Spitzer for a Low-Luminosity AGN at the Center of the Elliptical Galaxy NGC 315
journal, November 2007
- Gu, Q. -S.; Huang, J. -S.; Wilson, G.
- The Astrophysical Journal, Vol. 671, Issue 2
Spectral models for low-luminosity active galactic nuclei in LINERs: the role of advection-dominated accretion and jets
journal, January 2014
- Nemmen, Rodrigo S.; Storchi-Bergmann, Thaisa; Eracleous, Michael
- Monthly Notices of the Royal Astronomical Society, Vol. 438, Issue 4
Orientation and Speed of the Parsec-Scale Jet in NGC 4261 (3C 270)
journal, December 2001
- Piner, B. Glenn; Jones, Dayton L.; Wehrle, Ann E.
- The Astronomical Journal, Vol. 122, Issue 6
Black hole lightning due to particle acceleration at subhorizon scales
journal, November 2014
- Aleksić, J.; Ansoldi, S.; Antonelli, L. A.
- Science, Vol. 346, Issue 6213
Formation of the radio jet in M87 at 100 Schwarzschild radii from the central black hole
journal, October 1999
- Junor, William; Biretta, John A.; Livio, Mario
- Nature, Vol. 401, Issue 6756
FERMI DISCOVERY OF GAMMA-RAY EMISSION FROM NGC 1275
journal, June 2009
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 699, Issue 1
The HST view of the nuclear emission line region in low luminosity
radio-galaxies
journal, August 2005
- Capetti, A.; Kleijn, G. V.; Chiaberge, M.
- Astronomy & Astrophysics, Vol. 439, Issue 3
The subarcsecond mid-infrared view of local active galactic nuclei – I. The N- and Q-band imaging atlas★
journal, February 2014
- Asmus, D.; Hönig, S. F.; Gandhi, P.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 2
Hot Accretion Flows Around Black Holes
journal, August 2014
- Yuan, Feng; Narayan, Ramesh
- Annual Review of Astronomy and Astrophysics, Vol. 52, Issue 1