High-energy Gamma Rays from Magnetically Arrested Disks in Nearby Radio Galaxies
TL;DR: In this paper , the magnetically arrested disks (MADs) around central black holes are proposed as a possible scenario for the origin of the GeV gamma rays from nearby radio galaxies.
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Abstract: The origins of the GeV gamma rays from nearby radio galaxies are unknown. Hadronic emission from magnetically arrested disks (MADs) around central black holes is proposed as a possible scenario. Particles are accelerated in a MAD by magnetic reconnection and stochastic turbulence acceleration. We pick out the 15 brightest radio galaxies in the GeV band from The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope, Data Release 2 and apply the MAD model. We find that we can explain the data in the GeV bands by the MAD model if the accretion rate is lower than 0.1% of the Eddington rate. For a higher accretion rate, GeV gamma rays are absorbed by two-photon interaction due to copious low-energy photons. If we assume another proposed prescription of the electron-heating rate by magnetic reconnection, the MAD model fails to reproduce the GeV data for the majority of our sample. This indicates that the electron-heating rate is crucial. We also apply the MAD model to Sagittarius A* (Sgr A*) and find that GeV gamma rays observed at the Galactic center do not come from the MAD of Sgr A*. We estimate the cosmic ray (CR) intensity from Sgr A*, but it is too low to explain the high-energy CR intensity on Earth.
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Magnetic Reconnection in Black Hole Magnetospheres: Lepton Loading into Jets, Superluminal Radio Blobs, and Multiwavelength Flares
TL;DR: In this paper , it was shown that superluminal radio blobs around Sgr A* can emit broadband photons from optical to multi-MeV bands, which will be detectable by future X-ray satellites.
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One-dimensional General Relativistic Particle-in-cell Simulations of Stellar-mass Black Hole Magnetospheres: A Semianalytic Model of Gamma-Rays from Gaps
Koki Kin,Shota Kisaka,Kenji Toma,Shigeo S. Kimura,Amir Levinson +4 more
TL;DR: One-dimensional general relativistic particle-in-cell simulations of stellar-mass black hole magnetospheres find that spark gaps emerge and particles are efficiently accelerated, leading to gamma-ray emission. A semianalytic model reproduces the maximum electron energies and peak gamma-ray luminosities of the simulation results.
1
References
Explaining the spectrum of Sagittarius-A* with a model of an accreting black-hole
TL;DR: In this article, the authors presented a new model of accretion onto Sagittarius A*, in which most of the energy released is carried along with the gas and lost into the black hole of mass ∼7 x 105 solar masses, rather than appearing as radiation.
551
Fermi Large Area Telescope Observations of Markarian 421: The Missing Piece of its Spectral Energy Distribution
A. A. Abdo,A. A. Abdo,Markus Ackermann,Marco Ajello,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Denis Bastieri,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,B. Berenji,Roger Blandford,E. D. Bloom,Emanuele Bonamente,Emanuele Bonamente,A. W. Borgland,A. Bouvier,J. Bregeon,Alessandro Brez,M. Brigida,M. Brigida,P. Bruel,R. Buehler,S. Buson,S. Buson,G. A. Caliandro,R. A. Cameron,A. Cannon,A. Cannon,P. A. Caraveo,S. Carrigan,J. M. Casandjian,E. Cavazzuti,Claudia Cecchi,Claudia Cecchi,Omer Celik,Omer Celik,Eric Charles,A. Chekhtman,A. Chekhtman,James Chiang,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,Jan Conrad,Jan Conrad,S. Cutini,A. De Angelis,F. de Palma,F. de Palma,Charles D. Dermer,E. Do Couto E Silva,Persis S. Drell,R. Dubois,D. Dumora,L. Escande,L. Escande,C. Favuzzi,C. Favuzzi,Stephen Fegan,Justin D. Finke,W. B. Focke,P. Fortin,M. Frailis,Lars Fuhrmann,Yasushi Fukazawa,T. Fukuyama,Stefan Funk,P. Fusco,P. Fusco,F. Gargano,Dario Gasparrini,N. Gehrels,Markos Georganopoulos,S. Germani,S. Germani,B. Giebels,Nicola Giglietto,Nicola Giglietto,Paolo Giommi,Francesco Giordano,Francesco Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,I. A. Grenier,Sylvain Guiriec,Daniela Hadasch,M. Hayashida,E. Hays,D. Horan,R. E. Hughes,Gudlaugur Johannesson,A. S. Johnson,W. N. Johnson,Matthias Kadler,T. Kamae,Hideaki Katagiri,Jun Kataoka,Jürgen Knödlseder,M. Kuss,J. Lande,Luca Latronico,Shiu-Hang Lee,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,Benoit Lott,M. N. Lovellette,P. Lubrano,P. Lubrano,G. M. Madejski,A. Makeev,A. Makeev,Walter Max-Moerbeck,M. N. Mazziotta,Julie McEnery,Julie McEnery,J. Mehault,Peter F. Michelson,W. Mitthumsiri,Tsunefumi Mizuno,C. Monte,C. Monte,M. E. Monzani,A. Morselli,Igor V. Moskalenko,S. Murgia,Takeshi Nakamori,M. Naumann-Godo,Sho Nishino,P. L. Nolan,J. P. Norris,E. Nuss,T. Ohsugi,Atsushi Okumura,Nicola Omodei,E. Orlando,J. F. Ormes,M. Ozaki,David Paneque,David Paneque,J. H. Panetta,D. Parent,D. Parent,Vasiliki Pavlidou,T. J. Pearson,V. Pelassa,M. Pepe,M. Pepe,Melissa Pesce-Rollins,M. Pierbattista,F. Piron,T. A. Porter,S. Rainò,S. Rainò,Riccardo Rando,Riccardo Rando,M. Razzano,Anthony C. S. Readhead,A. Reimer,Olaf Reimer,L. C. Reyes,Joseph L. Richards,Steven Ritz,M. Roth,Hartmut Sadrozinski,David Sanchez,A. Sander,Carmelo Sgrò,E. J. Siskind,P. D. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,Łukasz Stawarz,Mark Stevenson,M. S. Strickman,D. J. Suson,Hiromitsu Takahashi,Tadayuki Takahashi,Takaaki Tanaka,J. G. Thayer,J. B. Thayer,D. J. Thompson,L. Tibaldo,Diego F. Torres,Diego F. Torres,Gino Tosti,Gino Tosti,A. Tramacere,Eleonora Troja,T. L. Usher,Justin Vandenbroucke,V. Vasileiou,V. Vasileiou,Giacomo Vianello,N. Vilchez,V. Vitale,V. Vitale,A. P. Waite,P. Wang,Ann E. Wehrle,Brian L Winer,K. S. Wood,Zhenwei Yang,Y. Yatsu,T. Ylinen,T. Ylinen,J. A. Zensus,M. Ziegler,Jelena Aleksić,L. A. Antonelli,P. Antoranz,Michael Backes,Juan Abel Barrio,J. Becerra González,J. Becerra González,W. Bednarek,Andrei Berdyugin,K. Berger,Elisa Bernardini,Adrian Biland,Oscar Blanch,R. K. Bock,A. Boller,G. Bonnoli,Pol Bordas,D. Borla Tridon,Valentí Bosch-Ramon,D. Bose,Ilana M. Braun,Thomas Bretz,M. Camara,E. Carmona,Alessandro Carosi,Pierre Colin,E. Colombo,Jose Luis Contreras,Juan Cortina,Stefano Covino,Francesco Dazzi,E. De Cea del Pozo,C. Delgado Mendez,B. De Lotto,M. De Maria,F. De Sabata,A. Diago Ortega,A. Diago Ortega,M. Doert,Aaron Dominguez,D. Dominis Prester,Daniela Dorner,Michele Doro,Michele Doro,Dominik Elsaesser,Daniel Ferenc,M. V. Fonseca,Ll. Font,R. J. García López,R. J. García López,M. Garczarczyk,Markus Gaug,Gianluca Giavitto,N. Godinovi,Artemio Herrero,Artemio Herrero,D. Hildebrand,D. Höhne-Mönch,J. Hose,Dario Hrupec,T. Jogler,S. Klepser,T. Krähenbühl,D. Kranich,J. Krause,A. La Barbera,E. Leonardo,Elina Lindfors,Saverio Lombardi,Saverio Lombardi,M. López,M. López,E. Lorenz,E. Lorenz,P. Majumdar,E. Makariev,G. Maneva,N. Mankuzhiyil,K. Mannheim,L. Maraschi,Mosè Mariotti,Mosè Mariotti,M. I. Martínez,Daniel Mazin,Mario Meucci,Jose Miguel Miranda,R. Mirzoyan,Hiroko Miyamoto,J. Moldón,Abelardo Moralejo,Daniel Nieto,K. Nilsson,Reiko Orito,I. Oya,Riccardo Paoletti,Josep M. Paredes,S. Partini,M. Pasanen,F. Pauss,R. Pegna,Miguel A. Pérez-Torres,Massimo Persic,Massimo Persic,J. Peruzzo,J. Peruzzo,J. Pochon,Francisco Prada,P. G. Prada Moroni,Elisa Prandini,Elisa Prandini,N. Puchades,Ivica Puljak,T. Reichardt,Wolfgang Rhode,Marc Ribó,J. Rico,J. Rico,M. Rissi,S. Rügamer,A. Saggion,A. Saggion,K. Saito,Takashi Saito,M. Salvati,Miguel A. Sánchez-Conde,Miguel A. Sánchez-Conde,Konstancja Satalecka,V. Scalzotto,V. Scalzotto,V. Scapin,C. Schultz,C. Schultz,T. Schweizer,M. Shayduk,S. N. Shore,S. N. Shore,Agnieszka Sierpowska-Bartosik,A. Sillanpää,Julian Sitarek,Dorota Sobczyńska,Felix Spanier,S. Spiro,Antonio Stamerra,B. Steinke,J. Storz,N. Strah,J. C. Struebig,Tihomir Surić,L. O. Takalo,Fabrizio Tavecchio,Petar Temnikov,Tomislav Terzić,D. Tescaro,Masahiro Teshima,H. Vankov,Robert Wagner,Q. Weitzel,Victor Zabalza,Fabio Zandanel,R. Zanin,M. Villata,C. M. Raiteri,Hugh D. Aller,M. F. Aller,Wen Ping Chen,B. Jordan,Ekaterina Koptelova,Omar M. Kurtanidze,Anne Lähteenmäki,B. McBreen,Valeri M. Larionov,Valeri M. Larionov,Valeri M. Larionov,C. S. Lin,M. G. Nikolashvili,R. Reinthal,Emmanouil Angelakis,M. Capalbi,A. Carraminana,L. Carrasco,P. Cassaro,A. Cesarini,A. D. Falcone,Mark Gurwell,Talvikki Hovatta,Yu. A. Kovalev,Yuri Y. Kovalev,Yuri Y. Kovalev,Thomas P. Krichbaum,Hans A. Krimm,Hans A. Krimm,Matthew L. Lister,Joseph Moody,G. Maccaferri,Y. Mori,I. Nestoras,Andrea Orlati,C. Pace,C. Pagani,R. Pearson,M. Perri,B. G. Piner,Eduardo Ros,Eduardo Ros,A. C. Sadun,T. Sakamoto,Joni Tammi,A. C. Zook +421 more
TL;DR: In this paper, the gamma-ray activity of the high-synchrotron-peaked BL Lacertae object Markarian 421 (Mrk 421) during the first 1.5 years of Fermi operation was reported.
Time-Integrated Neutrino Source Searches with 10 Years of IceCube Data.
M. G. Aartsen,Markus Ackermann,Jenni Adams,Juanan Aguilar,Markus Ahlers,Maryon Ahrens,C. Alispach,K. Andeen,T. Anderson,I. Ansseau,Gisela Anton,Carlos Arguelles,J. Auffenberg,Spencer Axani,P. Backes,H. Bagherpour,X. Bai,Aswathi Balagopal,Anastasia Maria Barbano,S. W. Barwick,Benjamin Bastian,V. Baum,Sebastian Baur,R. C. Bay,J. J. Beatty,K. Becker,J. Becker Tjus,Segev BenZvi,D. Berley,Elisa Bernardini,D. Z. Besson,Gary Binder,Gary Binder,Daniel Bindig,E. Blaufuss,Summer Blot,Christian Bohm,M. Börner,Sebastian Böser,Olga Botner,Julia Böttcher,E. Bourbeau,J. Bourbeau,Federica Bradascio,James E. Braun,Stephanie Bron,Jannes Brostean-Kaiser,Alexander Burgman,J. Buscher,R. S. Busse,T. L. Carver,C. Chen,E. Cheung,Dmitry Chirkin,Suyong Choi,Karl J. Clark,L. Classen,Alan Coleman,G. H. Collin,Janet Conrad,Paul Coppin,Pablo Correa,D. F. Cowen,R. Cross,Pranav Dave,C. De Clercq,James DeLaunay,H. Dembinski,Kunal Deoskar,S. De Ridder,Paolo Desiati,K. D. de Vries,G. de Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Diaz-Velez,H. Dujmovic,Matt Dunkman,Emily Dvorak,B. Eberhardt,Thomas Ehrhardt,Philipp Eller,Ralph Engel,Paul Evenson,S. Fahey,A. R. Fazely,J. Felde,Kirill Filimonov,Chad Finley,D. B. Fox,Anna Franckowiak,E. Friedman,Alexander Fritz,Thomas K. Gaisser,J. C. Gallagher,Erik Ganster,Simone Garrappa,L. Gerhardt,Karim Ghorbani,Theo Glauch,T. Glüsenkamp,A. Goldschmidt,Javier Gonzalez,Darren Grant,Z. Griffith,Spencer Griswold,M. Günder,Mehmet Gunduz,C. Haack,Allan Hallgren,R. Halliday,L. Halve,Francis Halzen,Kael Hanson,Andreas Haungs,D. Hebecker,D. Heereman,P. Heix,K. Helbing,R. Hellauer,Felix Henningsen,S. Hickford,Joshua Hignight,G. C. Hill,Kara Hoffman,R. Hoffmann,Tobias Hoinka,Benjamin Hokanson-Fasig,K. Hoshina,F. Huang,M. E. Huber,Thomas Huber,K. Hultqvist,Mirco Hunnefeld,Raamis Hussain,Seongjin In,Nadège Iovine,A. Ishihara,George Japaridze,Minjin Jeong,K. Jero,B. J. P. Jones,F. Jonske,R. Joppe,D. Kang,Won Nam Kang,Alexander Kappes,David Kappesser,Timo Karg,Martina Karl,Albrecht Karle,U. Katz,M. Kauer,J. L. Kelley,Ali Kheirandish,J. Kim,T. Kintscher,J. Kiryluk,T. Kittler,Spencer Klein,Spencer Klein,Ramesh Koirala,Hermann Kolanoski,L. Köpke,Claudio Kopper,S. Kopper,D. J. Koskinen,Marek Kowalski,K. Krings,G. Krückl,N. Kulacz,N. Kurahashi,A. Kyriacou,M. Labare,Justin Lanfranchi,M. J. Larson,Frederik Hermann Lauber,Jeffrey Lazar,Kayla Leonard,Agnieszka Leszczyńska,M. Leuermann,Qinrui Liu,Elisa Lohfink,C. J. Lozano Mariscal,Lu Lu,Francesco Lucarelli,J. Lünemann,William Luszczak,Yang Lyu,Yang Lyu,Wing Yan Ma,James Madsen,Giorgio Maggi,Kendall Mahn,Yuya Makino,P. Mallik,K. Mallot,Sarah Mancina,Ioana Codrina Maris,Reina H. Maruyama,K. Mase,H. S. Matis,R. Maunu,F. McNally,K. Meagher,M. Medici,Andres Medina,Maximilian Meier,Stephan Meighen-Berger,T. Menne,G. Merino,Thomas Meures,Jessie Micallef,D. Mockler,G. Momenté,Teresa Montaruli,Roger Moore,R. Morse,Marjon Moulai,P. Muth,R. Nagai,U. Naumann,G. Neer,H. Niederhausen,M. U. Nisa,S. C. Nowicki,D. R. Nygren,A. Obertacke Pollmann,Marie Oehler,A. Olivas,A. O'Murchadha,E. O’Sullivan,T. Palczewski,T. Palczewski,Hershal Pandya,Daria Pankova,Nahee Park,P. Peiffer,C. Pérez de los Heros,Saskia Philippen,Damian Pieloth,E. Pinat,Alex Pizzuto,M. Plum,Alessio Porcelli,P. B. Price,Gerald Przybylski,Christoph Raab,Amirreza Raissi,M. Rameez,L. Rauch,K. Rawlins,Immacolata Carmen Rea,René Reimann,B. Relethford,Max Renschler,Giovanni Renzi,Elisa Resconi,Wolfgang Rhode,Mike Richman,Steven Robertson,Martin Rongen,Carsten Rott,Tim Ruhe,Dirk Ryckbosch,D. Rysewyk,Ibrahim Safa,S. E. Sanchez Herrera,Alexander Sandrock,J. Sandroos,Marcos Santander,Subir Sarkar,Konstancja Satalecka,Merlin Schaufel,H. Schieler,P. Schlunder,T. O. B. Schmidt,Austin Schneider,Jochen M. Schneider,Frank G. Schröder,Frank G. Schröder,L. Schumacher,Steve Sclafani,D. Seckel,Surujhdeo Seunarine,Shefali Shefali,M. Silva,R. Snihur,Jan Soedingrekso,D. Soldin,M. Song,Glenn Spiczak,Christian Spiering,Juliana Stachurska,M. Stamatikos,T. Stanev,Robert Stein,P. Steinmüller,J. Stettner,A. Steuer,T. Stezelberger,R. G. Stokstad,A. Stößl,N. L. Strotjohann,Timo Sturwald,Thomas Stuttard,G. W. Sullivan,I. Taboada,Frederik Tenholt,Samvel Ter-Antonyan,A. Terliuk,S. Tilav,K. Tollefson,Lenka Tomankova,Christoph Tönnis,Simona Toscano,Delia Tosi,Alexander Trettin,Maria Tselengidou,Chunfai Tung,Andrea Turcati,Roxanne Turcotte,Colin Turley,Bunheng Ty,E. Unger,M. A. Unland Elorrieta,M. Usner,Justin Vandenbroucke,W. Van Driessche,D. van Eijk,N. van Eijndhoven,Sander Vanheule,J. van Santen,Matthias Vraeghe,C. Walck,A. Wallace,M. Wallraff,N. Wandkowsky,Timothyblake Watson,Chris Weaver,A. Weindl,M. J. Weiss,Jan Weldert,C. Wendt,Johannes Werthebach,B. J. Whelan,Nathan Whitehorn,K. Wiebe,Christopher Wiebusch,L. Wille,David A. Williams,L. Wills,Michael O. Wolf,Joshua A. Wood,T. R. Wood,Kurt Woschnagg,Gerrit Wrede,Da Xu,Xianwu Xu,Yiqian Xu,J. P. Yanez,G. B. Yodh,S. Yoshida,Tianlu Yuan,M. Zöcklein +364 more
TL;DR: The results, all based on searches for a cumulative neutrino signal integrated over the 10 years of available data, motivate further study of these and similar sources, including time-dependent analyses, multimessenger correlations, and the possibility of stronger evidence with coming upgrades to the detector.
416
Scaling Laws for Advection-dominated Flows: Applications to Low-Luminosity Galactic Nuclei
TL;DR: In this paper, the authors present analytical scaling laws for self-similar advection-dominated flows and apply these results to low-luminosity black holes in galactic nuclei, showing that the universal radio spectral index of 1/3 observed in most elliptical galaxies is a natural consequence of self-absorbed synchrotron radiation from these flows.
342
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
Marco Ajello,R. Angioni,R. Angioni,Magnus Axelsson,Magnus Axelsson,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Denis Bastieri,Denis Bastieri,J. Becerra González,Ronaldo Bellazzini,Elisabetta Bissaldi,Elisabetta Bissaldi,Elliott D. Bloom,R. Bonino,R. Bonino,Eugenio Bottacini,Eugenio Bottacini,P. Bruel,S. Buson,Fabio Cafardo,R. A. Cameron,E. Cavazzuti,Sina Chen,Sina Chen,C. C. Cheung,Stefano Ciprini,Stefano Ciprini,D. Costantin,S. Cutini,Filippo D'Ammando,P. de la Torre Luque,R. de Menezes,R. de Menezes,F. de Palma,Abhishek Desai,N. Di Lalla,L. Di Venere,L. Di Venere,Aaron Dominguez,F. Fana Dirirsa,Elizabeth C. Ferrara,Justin D. Finke,Anna Franckowiak,Yasushi Fukazawa,Stefan Funk,P. Fusco,P. Fusco,F. Gargano,S. Garrappa,Dario Gasparrini,Dario Gasparrini,Nicola Giglietto,Nicola Giglietto,Francesco Giordano,Francesco Giordano,Marcello Giroletti,David A. Green,I. A. Grenier,Sylvain Guiriec,Sylvain Guiriec,S. Harita,E. Hays,D. Horan,R. Itoh,G. Jóhannesson,G. Jóhannesson,Miloš Kovačević,Felicia Krauss,Michael Kreter,Michael Kreter,M. Kuss,Stefan Larsson,Stefan Larsson,Stefan Larsson,C. Leto,J. Li,Ioannis Liodakis,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,B. Lott,M. N. Lovellette,P. Lubrano,G. M. Madejski,S. Maldera,Alberto Manfreda,G. Martí-Devesa,Francesco Massaro,Francesco Massaro,Mn Mazziotta,I. Mereu,I. Mereu,Manuel Meyer,Giulia Migliori,Nestor Mirabal,Nestor Mirabal,Tsunefumi Mizuno,M. E. Monzani,A. Morselli,Igor V. Moskalenko,M. Negro,M. Negro,Rodrigo Nemmen,E. Nuss,L. S. Ojha,Roopesh Ojha,Nicola Omodei,M. Orienti,E. Orlando,E. Orlando,J. F. Ormes,Vaidehi S. Paliya,Z. Pei,H. A. Peña-Herazo,Massimo Persic,Melissa Pesce-Rollins,Leonid Petrov,F. Piron,H. Poon,Giacomo Principe,S. Rainò,S. Rainò,Riccardo Rando,Riccardo Rando,Bindu Rani,Bindu Rani,M. Razzano,Soebur Razzaque,A. Reimer,Olaf Reimer,Frank K. Schinzel,Frank K. Schinzel,D. Serini,Carmelo Sgrò,E. J. Siskind,Gloria Spandre,P. Spinelli,P. Spinelli,D. J. Suson,Yutaro Tachibana,D. J. Thompson,Diego F. Torres,Eleonora Torresi,E. Troja,E. Troja,J. Valverde,P. van Zyl,P. van Zyl,M. Yassine,M. Yassine +152 more
TL;DR: The 4LAC catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (|b|>10°deg}).