Results 101 to 110 of about 33,870 (293)
EGRET (GeV) Blazars [PDF]
AIP Conference Proceedings, 2001 Invited review paper, to appear in the proceedings of the International Symposium on High Energy Gamma-Ray Astronomy, Heidelberg, June 2000, AIP Conference Proc.openaire +3 more sourcesA model for periodic blazars [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We describe a scenario to explain blazar periodicities with timescales of $\sim$ few years. The scenario is based on a binary super-massive black hole (SMBH) system in which one of the two SMBH carries a jet. We discuss the various mechanisms that can cause the jet to precess and produce corkscrew patterns through space with a scale of $\sim$ few pc ...Antonio Stamerra, Antonio Stamerra, Mattia C. Sormani, Emanuele Sobacchi +3 moreopenaire +4 more sourcesInvestigation of Two Fermi-LAT Gamma-Ray Blazars Coincident with High-energy Neutrinos Detected by IceCube [PDF]
Astrophysical Journal, 2019 After the identification of the gamma-ray blazar TXS 0506+056 as the first compelling IceCube neutrino source candidate, we perform a systematic analysis of all high-energy neutrino events satisfying the IceCube realtime trigger criteria.Fermi-LAT collaboration S. Garrappa, S. Buson, A. Franckowiak, ASAS-SN B. J. Shappee, J. Beacom, S. Dong, T. Holoien, C. Kochanek, J. Prieto, K. Stanek, T. Thompson, I. C. M. Aartsen, M. Ackermann, J. Adams, J. Aguilar, M. Ahlers, M. Ahrens, C. Alispach, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C. Arguelles, J. Auffenberg, S. Axani, P. Backes, H. Bagherpour, X. Bai, A. Barbano, S. Barwick, V. Baum, R. Bay, J. Beatty, K. Becker, J. Tjus, S. Benzvi, D. Berley, E. Bernardini, D. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, C. Bohm, M. Borner, S. Boser, O. Botner, E. Bourbeau, J. Bourbeau, F. Bradascio, J. Braun, H. Bretz, S. Bron, J. Brostean-Kaiser, A. Burgman, R. Busse, T. Carver, C. Chen, E. Cheung, D. Chirkin, K. Clark, L. Classen, G. Collin, J. Conrad, P. Coppin, P. Correa, D. Cowen, R. Cross, P. Dave, J. Andr'e, C. Clercq, J. DeLaunay, H. Dembinski, K. Deoskar, S. Ridder, P. Desiati, K. D. Vries, G. Wasseige, M. With, T. DeYoung, J. C. D. az-V'elez, H. Dujmovic, M. Dunkman, E. Dvorak, B. Eberhardt, T. Ehrhardt, P. Eller, P. Evenson, S. Fahey, A. Fazely, J. Felde, K. Filimonov, C. Finley, E. Friedman, A. Fritz, T. Gaisser, J. Gallagher, E. Ganster, S. Garrappa, L. Gerhardt, K. Ghorbani, T. Glauch, T. Glusenkamp, A. Goldschmidt, J. G. Gonzalez, D. Grant, Z. Griffith, M. Gunder, M. Gunduz, C. Haack, A. Hallgren, L. Halve, F. Halzen, K. Hanson, D. Hebecker, D. Heereman, K. Helbing, R. Hellauer, F. Henningsen, S. Hickford, J. Hignight, G. Hill, K. Hoffman, R. Hoffmann, T. Hoinka, B. Hokanson-Fasig, K. Hoshina, F. Huang, M. Huber, K. Hultqvist, Mirco Hünnefeld, R. Hussain, S. In, N. Iovine, A. Ishihara, E. Jacobi, G. Japaridze, M. Jeong, K. Jero, B. Jones, W. Kang, A. Kappes, D. Kappesser, T. Karg, M. Karl, A. Karle, U. Katz, M. Kauer, A. Keivani, J. Kelley, A. Kheirandish, J. Kim, T. Kintscher, J. Kiryluk, T. Kittler, S. Klein, R. Koirala, H. Kolanoski, L. Kopke, C. Kopper, S. Kopper, D. Koskinen, M. Kowalski, K. Krings, G. Kruckl, N. Kulacz, S. Kunwar, N. Kurahashi, A. Kyriacou, M. Labare, J. Lanfranchi, M. Larson, F. Lauber, J. Lazar, K. Leonard, M. Leuermann, Q. Liu, E. Lohfink, C. J. L. Mariscal, L. Lu, F. Lucarelli, J. Lunemann, W. Luszczak, J. Madsen, G. Maggi, K. Mahn, Y. Makino, K. Mallot, S. Mancina, I. Marics, R. Maruyama, K. Mase, R. Maunu, K. Meagher, M. Medici, A. Medina, M. Meier, S. Meighen-Berger, T. Menne, G. Merino, T. Meures, S. Miarecki, J. Micallef, G. Moment'e, T. Montaruli, R. Moore, M. Moulai, R. Nagai, R. Nahnhauer, P. Nakarmi, U. Naumann, G. Neer, H. Niederhausen, S. Nowicki, D. Nygren, A. Pollmann, A. Olivas, A. O'Murchadha, E. O’Sullivan, T. Palczewski, H. Pandya, D. Pankova, N. Park, P. Peiffer, C. Heros, D. Pieloth, E. Pinat, A. Pizzuto, M. Plum, P. Price, G. Przybylski, C. Raab, A. Raissi, M. Rameez, L. Rauch, K. Rawlins, I. C. Rea, R. Reimann, B. Relethford, G. Renzi, E. Resconi, W. Rhode, M. Richman, S. Robertson, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk, I. Safa, S. Herrera, A. Sandrock, J. Sandroos, M. Santander, S. Sarkar, K. Satalecka, M. Schaufel, P. Schlunder, T. Schmidt, A. Schneider, J. Schneider, L. Schumacher, S. Sclafani, D. Seckel, S. Seunarine, M. Silva, R. Snihur, J. Soedingrekso, D. Soldin, M. Song, G. Spiczak, C. Spiering, J. Stachurska, M. Stamatikos, T. Stanev, Alexander Stasik, R. Stein, J. Stettner, A. Steuer, T. Stezelberger, R. Stokstad, A. Stossl, N. Strotjohann, T. Stuttard, G. Sullivan, M. Sutherland, I. Taboada, F. Tenholt, S. Ter-Antonyan, A. Terliuk, S. Tilav, L. Tomankova, C. Tonnis, S. Toscano, D. Tosi, M. Tselengidou, C. Tung, A. Turcati, R. Turcotte, C. Turley, B. Ty, E. Unger, M. U. Elorrieta, M. Usner, J. Vandenbroucke, W. Driessche, D. Eijk, N. Eijndhoven, S. Vanheule, J. Santen, M. Vraeghe, C. Walck, A. Wallace, M. Wallraff, N. Wandkowsky, T. B. Watson, C. Weaver, M. Weiss, J. Weldert, C. Wendt, J. Werthebach, S. Westerhoff, B. Whelan, N. Whitehorn, K. Wiebe, C. Wiebusch, L. Wille, D. Williams, L. Wills, M. Wolf, J. Wood, T. R. Wood, K. Woschnagg, G. Wrede, D. Xu, X. Xu, Y. Xu, J. Yáñez, G. Yodh, S. Yoshida, T. Yuan +341 moresemanticscholar +1 more sourceLong-term optical monitoring of TeV emitting blazars [PDF]
Astronomy & Astrophysics, 2018 We present ten years of R-band monitoring data of 31 northern blazars which were either detected at very high-energy (VHE) gamma rays or listed as potential VHE gamma-ray emitters.K. Nilsson, E. Lindfors, L. Takalo, R. Reinthal, A. Berdyugin, A. Sillanpää, S. Ciprini, A. Halkola, P. Heinämäki, T. Hovatta, V. Kadenius, P. Nurmi, L. Ostorero, M. Pasanen, R. Rekola, J. Saarinen, J. Sainio, T. Tuominen, C. Villforth, T. Vornanen, B. Zaprudin +20 moresemanticscholar +1 more sourceMulti-messenger emission characteristics of blazars
Frontiers in Astronomy and Space SciencesMulti-messenger observations and theories of astrophysical objects are rapidly becoming a critical research area in the astrophysics scientific community. In particular, point-like objects such as BL Lacertae (BL Lac) objects, flat-spectrum radio quasars Ronald Gamble, Ronald Gamble, Ronald Gamble, Jordan Forman, Amethyst Barnes, Gokul Srinivasaragavan, Gokul Srinivasaragavan, Isiah Holt, Isiah Holt, Marvin Jones, Marvin Jones +10 moredoaj +1 more sourceVariability in blazars
Astroparticle Physics, 1999 The kinetic energy of bulk relativistic plasma ejected from the central engine of blazars is converted into nonthermal particle energy in the comoving frame through a process of sweeping up material from the surrounding medium. The resulting deceleration of the bulk plasma introduces a number of effects which must be included in blazar modeling.openaire +3 more sourcesMultiwavelength properties of blazars [PDF]
Advances in Space Research, 1998 Blazar spectral energy distributions (SEDs) are double peaked and follow a self-similar sequence in luminosity. The so-called "blue" blazars, whose first SED component peaks at X-ray energies, are TeV sources, although with a relatively small fraction of their bolometric luminosities.openaire +5 more sourcesThe Fermi blazar sequence [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We revisit the blazar sequence exploiting the complete, flux limited sample of blazars with known redshift detected by the Fermi satellite after 4 years of operations (the 3LAC sample). We divide the sources into gamma-ray luminosity bins, collect all the archival data for all blazars, and construct their spectral energy distribution (SED). We describe Gabriele Ghisellini, Chiara Righi, Chiara Righi, Fabrizio Tavecchio, L. Costamante +4 moreopenaire +4 more sources
