Results 1 to 10 of about 20,672 (255)
Polarized blazar X-rays imply particle acceleration in shocks [PDF]
Nature, 2022 Most of the light from blazars, active galactic nuclei with jets of magnetized plasma that point nearly along the line of sight, is produced by high-energy particles, up to around 1 TeV.Ioannis Liodakis, Alan P. Marscher, I. Agudo, A. Berdyugin, M. Bernardos, G. Bonnoli, Г. А. Борман, C. Casadio, V. Casanova, E. Cavazzuti, Nicole Rodriguez Cavero, Laura Di Gesu, Niccolò Di Lalla, I. Donnarumma, Steven R. Ehlert, M. Errando, Juan Escudero, Maya García‐Comas, Beatriz Agı́s-González, C. Husillos, Jenni Jormanainen, Svetlana G. Jorstad, Masato Kagitani, E. N. Kopatskaya, Vadim Kravtsov, H. Krawczynski, E. Lindfors, Е. Г. Ларионова, G. Madejski, Frédéric Marin, Alessandro Marchini, Herman L. Marshall, D. A. Morozova, F. Massaro, J. Masiero, Dimitri Mawet, R. Middei, Maxwell A. Millar‐Blanchaer, I. Myserlis, Michela Negro, K. Nilsson, Stephen L. O’Dell, N. Omodei, L. Pacciani, A. Paggi, G. V. Panopoulou, Abel L. Peirson, M. Perri, Pierre-Olivier Petrucci, Juri Poutanen, Simonetta Puccetti, Roger W. Romani, Takeshi Sakanoi, С. С. Савченко, A. Sota, F. Tavecchio, Samaporn Tinyanont, A. A. Vasilyev, Z. R. Weaver, А. В. Жовтан, L. A. Antonelli, Matteo Bachetti, L. Baldini, W. H. Baumgartner, R. Bellazzini, S. Bianchi, Stephen D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, Fiamma Capitanio, Simone Castellano, S. Ciprini, E. Costa, Alessandra De Rosa, E. Del Monte, Alessandro Di Marco, Victor Doroshenko, Michal Dovčiak, Teruaki Enoto, Y. Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. García, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, W. Iwakiri, V. Karas, Takao Kitaguchi, Jeffery J. Kolodziejczak, Fabio La Monaca, L. Latronico, S. Maldera, Alberto Manfreda, Andrea Marinucci, G. Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri +99 moreopenalex +3 more sourcesHigh-energy neutrino flux from individual blazar flares [PDF]
Monthly notices of the Royal Astronomical Society, 2019
Motivated by the recently reported evidence of an association between a high-energy neutrino and a γ-ray flare from the blazar TXS 0506+056, we calculate the expected high-energy neutrino signal from past, individual flares, from 12 blazars, selected ...Foteini Oikonomou, Kohta Murase, P. Padovani, E. Resconi, P. Mészáros +4 moreopenalex +3 more sourcesThe first blazar observed at z > 6 [PDF]
Astronomy & Astrophysics, 2020 We present the discovery of PSO J030947.49+271757.31, the radio brightest (23.7 mJy at 1.4 GHz) active galactic nucleus (AGN) at z > 6.0. It was selected by cross-matching the NRAO VLA Sky Survey and the Panoramic Survey Telescope and Rapid Response ...S. Belladitta, A. Moretti, A. Caccianiga, C. Spingola, P. Severgnini, R. Della Ceca, G. Ghisellini, D. Dallacasa, T. Sbarrato, C. Cicone, L. P. Cassarà, M. Pedani +11 moreopenalex +3 more sourcesMarkarian Multiwavelength Data Center (MMDC): A Tool for Retrieving and Modeling Multitemporal, Multiwavelength, and Multimessenger Data from Blazar Observations [PDF]
The Astronomical JournalThe Markarian Multiwavelength Data Center ( MMDC ) is a web-based tool designed for accessing and retrieving multiwavelength and multimessenger data from blazar observations.N. Sahakyan, V. Vardanyan, P. Giommi, D. Bégué, D. Israyelyan, G. Harutyunyan, M. Manvelyan, M. Khachatryan, H. Dereli-Bégué, S. Gasparyan +9 moredoaj +2 more sourcesConstraints on the Intergalactic Magnetic Field Using Fermi-LAT and H.E.S.S. Blazar Observations [PDF]
Astrophysical Journal Letters, 2023 Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in the universe.H.E.S.S., F. Aharonian, J. Aschersleben, Michael Backes, V. B. Martins, R. Batzofin, Y. Becherini, D. Berge, B. Bi, M. Bouyahiaoui, M. Breuhaus, R. Brose, F. Brun, B. Bruno, T. Bulik, C. Burger-Scheidlin, T. Bylund, S. Caroff, S. Casanova, J. Celic, M. Cerruti, T. Chand, S. Chandra, A. Chen, J. Chibueze, O. Chibueze, G. Cotter, M. Bony, K. Egberts, J. Ernenwein, G. F. D. Clairfontaine, M. Filipović, G. Fontaine, M. Fussling, S. Funk, S. Gabici, S. Ghafourizadeh, G. Giavitto, D. Glawion, J. Glicenstein, P. Goswami, M. Grondin, L. Haerer, T. Holch, M. Holler, D. Horns, M. Jamrozy, F. Jankowsky, V. Joshi, I. Jung-Richardt, E. Kasai, K. Katarzyn'nski, R. Khatoon, B. Kh'elifi, W. Klu'zniak, N. Komin, K. Kosack, D. Kostunin, R. G. Lang, S. L. Stum, F. Leitl, A. Lemière, J. Lenain, F. Leuschner, T. Lohse, A. Luashvili, I. Lypova, J. Mackey, D. Malyshev, V. Marandon, P. Marchegiani, A. Marcowith, G. Mart'i-Devesa, R. Marx, M. Meyer, A. Mitchell, R. Moderski, L. Mohrmann, A. Montanari, E. Moulin, J. Muller, T. Murach, K. Nakashima, J. Niemiec, S. Ohm, L. Olivera-Nieto, E. Wilhelmi, S. Panny, M. Panter, R. Parsons, G. Peron, D. Prokhorov, H. Prokoph, G. Puhlhofer, M. Punch, A. Quirrenbach, P. Reichherzer, A. Reimer, O. Reimer, B. Reville, F. Rieger, G. Rowell, B. Rudak, E. Ruiz-Velasco, V. Sahakian, D. Sanchez, M. Sasaki, F. Schuussler, H. Schutte, U. Schwanke, J. Shapopi, H. Sol, S. Spencer, S. Steinmassl, H. Suzuki, T. Takahashi, T. Tanaka, A. Taylor, R. Terrier, C. Thorpe-Morgan, M. Tsirou, N. Tsuji, Y. Uchiyama, C. Eldik, J. Veh, C. Venter, S. Wagner, R. White, A. Wierzcholska, Y. Wong, M. Zacharias, D. Zargaryan, A. Zdziarski, S. Zouari, N. Żywucka +134 moresemanticscholar +1 more sourceIXPE and Multiwavelength Observations of Blazar PG 1553+113 Reveal an Orphan Optical Polarization Swing [PDF]
Astrophysical Journal Letters, 2023 The lower-energy peak of the spectral energy distribution of blazars has commonly been ascribed to synchrotron radiation from relativistic particles in the jets.R. Middei, M. Perri, S. Puccetti, I. Liodakis, L. Di Gesu, A. Marscher, N. R. Cavero, F. Tavecchio, I. Donnarumma, M. Laurenti, S. Jorstad, I. Agudo, H. Marshall, L. Pacciani, Dawoon E. Kim, F. J. Aceituno, G. Bonnoli, V. Casanova, B. Agís-González, A. Sota, C. Casadio, J. Escudero, I. Myserlis, A. Sievers, P. M. Kouch, E. Lindfors, M. Gurwell, G. Keating, R. Rao, Sincheol Kang, Sang-Sung Lee, Sanghyun Kim, W. Cheong, Hyeon-Woo Jeong, E. Angelakis, A. Kraus, L. A. Antonelli, M. Bachetti, L. Baldini, W. Baumgartner, R. Bellazzini, S. Bianchi, S. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, F. Capitanio, S. Castellano, E. Cavazzuti, Chien-Ting J. Chen, S. Ciprini, E. Costa, A. De Rosa, E. Del Monte, w sarada, A. Di Marco, Victor Doroshenko, M. Dovc̆iak, S. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, R. Ferrazzoli, J. A. Garc'ia, S. Gunji, K. Hayashida, J. Heyl, W. Iwakiri, P. Kaaret, V. Karas, F. Kislat, T. Kitaguchi, J. Kolodziejczak, H. Krawczynski, F. La Monaca, L. Latronico, S. Maldera, A. Manfreda, F. Marin, A. Marinucci, F. Massaro, G. Matt, I. Mitsuishi, T. Mizuno, F. Muleri, M. Negro, C. Ng, S. O’Dell, N. Omodei, C. Oppedisano, A. Papitto, G. Pavlov, A. L. Peirson, M. Pesce-Rollins, P. Petrucci, M. Pilia, A. Possenti, J. Poutanen, B. Ramsey, J. Rankin, A. Ratheesh, O. Roberts, R. Romani, C. Sgro’, P. Slane, P. Soffitta, G. Spandre, D. Swartz, T. Tamagawa, R. Taverna, Y. Tawara, A. Tennant, N. Thomas, F. Tombesi, A. Trois, S. Tsygankov, R. Turolla, J. Vink, M. Weisskopf, Kinwah Wu, F. Xie, S. Zane +121 moresemanticscholar +1 more sourceBlazar-boosted dark matter at Super-Kamiokande [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Dark matter particles near the center of a blazar, after being accelerated by the elastic collisions with relativistic electrons and protons in the blazar jet, can be energetic enough to trigger detectable signals at terrestrial detectors.A. Granelli, P. Ullio, Jin-Wei Wangsemanticscholar +1 more sourceKinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz during 10 yr of the VLBA-BU-BLAZAR Program [PDF]
Astrophysical Journal Supplement Series, 2022 We analyze the parsec-scale jet kinematics from 2007 June to 2018 December of a sample of γ-ray bright blazars monitored roughly monthly with the Very Long Baseline Array (VLBA) at 43 GHz under the VLBA-BU-BLAZAR program.Z. Weaver, S. Jorstad, A. Marscher, D. Morozova, I. Troitsky, I. Agudo, J. L. G'omez, A. Lähteenmäki, J. Tammi, M. Tornikoski +9 moresemanticscholar +1 more source
