FERMI Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87

Abdo, A. A.; Ackermann, M.; Ajello, M.; Atwood, W. B.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Burnett, T. H.; Caliandro, G. A.; Cameron, R. A.; Cannon, A.; Caraveo, P. A.; Casandjian, J. M.; Cavazzuti, E.; Cecchi, C.; Çelik, Ö.; Charles, E.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Colafrancesco, S.; Conrad, J.; Costamante, L.; Cutini, S.; Davis, D. S.; Dermer, C. D.; de Angelis, A.; de Palma, F.; Digel, S. W.; Donato, D.; Couto e Silva, E. do; Drell, P. S.; Dubois, R.; Dumora, D.; Edmonds, Y.; Farnier, C.; Favuzzi, C.; Fegan, S. J.; Finke, J.; Focke, W. B.; Fortin, P.; Frailis, M.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Georganopoulos, M.; Germani, S.; Giebels, B.; Giglietto, N.; Giommi, P.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grondin, M. -H.; Grove, J. E.; Guillemot, L.; Guiriec, S.; Hanabata, Y.; Harding, A. K.; Hayashida, M.; Hays, E.; Horan, D.; Jóhannesson, G.; Johnson, A. S.; Johnson, R. P.; Johnson, T. J.; Johnson, W. N.; Kamae, T.; Katagiri, H.; Kataoka, J.; Kawai, N.; Kerr, M.; Knödlseder, J.; Kocian, M. L.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Madejski, G. M.; Makeev, A.; Mazziotta, M. N.; McConville, W.; McEnery, J. E.; Meurer, C.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A. A.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Norris, J. P.; Nuss, E.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J. F.; Ozaki, M.; Paneque, D.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Piron, F.; Porter, T. A.; Rainò, S.; Rando, R.; Razzano, M.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Rochester, L. S.; Rodriguez, A. Y.; Romani, R. W.; Roth, M.; Ryde, F.; Sadrozinski, H. F. -W.; Sambruna, R.; Sanchez, D.; Sander, A.; Saz Parkinson, P. M.; Scargle, J. D.; Sgrò, C.; Shaw, M. S.; Smith, D. A.; Smith, P. D.; Spandre, G.; Spinelli, P.; Strickman, M. S.; Suson, D. J.; Tajima, H.; Takahashi, H.; Tanaka, T.; Taylor, G. B.; Thayer, J. B.; Thompson, D. J.; Tibaldo, L.; Torres, D. F.; Tosti, G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vasileiou, V.; Vilchez, N.; Waite, A. P.; Wang, P.; Winer, B. L.; Wood, K. S.; Ylinen, T.; Ziegler, M.; Harris, D. E.; Massaro, F.; Stawarz, Ł.

doi:10.1088/0004-637X/707/1/55

Title: FERMI Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87

Journal Article · Tue Nov 17 00:00:00 EST 2009 · The Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/707/1/55· OSTI ID:1357421

Abdo, A. A.; Ackermann, M.; Ajello, M.; Atwood, W. B.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P. more »

Here, we report the Fermi Large Area Telescope (LAT) discovery of high-energy (MeV/GeV) γ-ray emission positionally consistent with the center of the radio galaxy M87, at a source significance of over 10σ in 10 months of all-sky survey data. Following the detections of Cen A and Per A, this makes M87 the third radio galaxy seen with the LAT. The faint point-like γ-ray source has a >100 MeV flux of 2.45 (±0.63) × 10^–8 photons cm^–2 s^–1 (photon index = 2.26 ± 0.13) with no significant variability detected within the LAT observation. This flux is comparable with the previous EGRET upper limit (<2.18 × 10^–8 photons cm^–2 s^–1, 2σ), thus there is no evidence for a significant MeV/GeV flare on decade timescales. Contemporaneous Chandra and Very Long Baseline Array data indicate low activity in the unresolved X-ray and radio core relative to previous observations, suggesting M87 is in a quiescent overall level over the first year of Fermi-LAT observations. The LAT γ-ray spectrum is modeled as synchrotron self-Compton (SSC) emission from the electron population producing the radio-to-X-ray emission in the core. The resultant SSC spectrum extrapolates smoothly from the LAT band to the historical-minimum TeV emission. Lastly, alternative models for the core and possible contributions from the kiloparsec-scale jet in M87 are considered, and cannot be excluded.

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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:: 1357421

Journal Information:: The Astrophysical Journal, Vol. 707, Issue 1; ISSN 0004-637X

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 132 works

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Partitioning the Outburst Energy of a Low Eddington Accretion Rate AGN at the Center of an Elliptical Galaxy: The Recent 12 Myr History of the Supermassive Black Hole in M87 Forman, W.; Churazov, E.; Jones, C. The Astrophysical Journal, Vol. 844, Issue 2 https://doi.org/10.3847/1538-4357/aa70e4	journal	July 2017
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
Two Blobs in a Jet Model for the γ -Ray Emission in Radio Galaxies Banasiński, P.; Bednarek, W. The Astrophysical Journal, Vol. 864, Issue 2 https://doi.org/10.3847/1538-4357/aad4fa	journal	September 2018
Two-temperature GRRMHD Simulations of M87 Ryan, Benjamin R.; Ressler, Sean M.; Dolence, Joshua C. The Astrophysical Journal, Vol. 864, Issue 2 https://doi.org/10.3847/1538-4357/aad73a	journal	September 2018
MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars Lister, M. L.; Homan, D. C.; Hovatta, T. The Astrophysical Journal, Vol. 874, Issue 1 https://doi.org/10.3847/1538-4357/ab08ee	journal	March 2019
Inverse Compton Scattering of Starlight in the Kiloparsec-scale Jet in Centaurus A: The Origin of Excess TeV γ -Ray Emission Tanada, K.; Kataoka, J.; Inoue, Y. The Astrophysical Journal, Vol. 878, Issue 2 https://doi.org/10.3847/1538-4357/ab2233	journal	June 2019
The Spin of M87* Nemmen, Rodrigo The Astrophysical Journal, Vol. 880, Issue 2 https://doi.org/10.3847/2041-8213/ab2fd3	journal	July 2019
A strong radio brightening at the jet base of M87 during the elevated very-high-energy γ-ray state in 2012 Hada, K.; Giroletti, M.; Kino, M. Proceedings of the International Astronomical Union, Vol. 10, Issue S313 https://doi.org/10.1017/s174392131500246x	journal	September 2014
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
Characteristics of Gamma-Ray Loud Blazars in the VLBA Imaging and Polarimetry Survey Linford, J. D.; Taylor, G. B.; Romani, R. arXiv https://doi.org/10.48550/arxiv.1010.5812	text	January 2010
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 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87 Collaboration, The H. E. S. S.; Abramowski, A.; Acero, F. arXiv https://doi.org/10.48550/arxiv.1111.5341	text	January 2011
Probing the central black hole in M87 with gamma-rays Rieger, Frank M.; Aharonian, Felix arXiv https://doi.org/10.48550/arxiv.1208.2702	text	January 2012
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
New Limits On Gamma-Ray Emission From Galaxy Clusters Griffin, Rhiannon D.; Dai, Xinyu; Kochanek, Christopher S. arXiv https://doi.org/10.48550/arxiv.1405.7047	text	January 2014
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
The role of fast magnetic reconnection on the radio and gamma-ray emission from the nuclear regions of microquasars and low luminosity AGNs Kadowaki, L. H. S.; Pino, E. M. de Gouveia Dal; Singh, Chandra B. arXiv https://doi.org/10.48550/arxiv.1410.3454	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
Collective non-thermal emission from an extragalactic jet interacting with stars Vieyro, Florencia L.; Torres-Albà, Núria; Bosch-Ramon, Valentí arXiv https://doi.org/10.48550/arxiv.1704.01919	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
Two-Temperature GRRMHD Simulations of M87 Ryan, Benjamin R.; Ressler, Sean M.; Dolence, Joshua C. arXiv https://doi.org/10.48550/arxiv.1808.01958	text	January 2018
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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