The Extremes in Intra-Night Blazar Variability: The S4 0954+65 Case

Autor: Rumen Bachev, Anton Strigachev, Evgeni Semkov, Rosa Victoria Muñoz Dimitrova, Georgi Latev, Borislav Spassov, Blagovest Petrov

Publikováno v: Galaxies, Vol 4, Iss 3, p 13 (2016)

We present results of optical observations of the extremely violently variable blazar S4 0954+65 on intra-night time scales. The object showed flux changes of up to 100% within a few hours. Time delays between optical bands, color changes and “rms-

Externí odkaz: https://doaj.org/article/6a1243b6636c4760a8b55d4c644bfaec

Rapid X-ray Variability in Mkn 421 during a Multiwavelength Campaign

Autor: Alex G Markowitz, Krzysztof Nalewajko, Gopal Bhatta, Gulab C Dewangan, Sunil Chandra, Daniela Dorner, Bernd Schleicher, Urszula Pajdosz-Śmierciak, Łukasz Stawarz, Staszek Zola, Michał Ostrowski, Daniele Carosati, Saikruba Krishnan, Rumen Bachev, Erika Benítez, Kosmas Gazeas, David Hiriart, Shao-Ming Hu, Valeri Larionov, Alessandro Marchini, Katsura Matsumoto, A A Nikiforova, Tapio Pursimo, Claudia M Raiteri, Daniel E Reichart, Diego Rodriguez, Evgeni Semkov, Anton Strigachev, Yuki Sugiura, Massimo Villata, James R Webb, Axel Arbet-Engels, Dominik Baack, Matteo Balbo, Adrian Biland, Thomas Bretz, Jens Buss, Laura Eisenberger, Dominik Elsaesser, Dorothee Hildebrand, Roman Iotov, Adelina Kalenski, Karl Mannheim, Alison Mitchell, Dominik Neise, Maximilian Noethe, Aleksander Paravac, Wolfgang Rhode, Vitalii Sliusar, Roland Walter

The study of short-term variability properties in AGN jets has the potential to shed light on their particle acceleration and emission mechanisms. We report results from a four-day coordinated multi-wavelength campaign on the highly-peaked blazar (HB

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::276b4fb77984a9025dafc14f4ea505ee
http://arxiv.org/abs/2206.03874

Testing two-component models on very high-energy gamma-ray-emitting BL Lac objects

Autor: Razmik Mirzoyan, D. Ninci, Susumu Inoue, Dorota Sobczyńska, V. Verguilov, Chiara Righi, J. van Scherpenberg, I. Šnidarić, John Hoang, Y. Chai, Stefano Covino, A. Babić, F. Di Pierro, D. Strom, Jose Luis Contreras, Petar Temnikov, Elisa Bernardini, C. Arcaro, Y. Iwamura, Ž. Bošnjak, Juan Cortina, Andrei Berdyugin, Bernd Schleicher, L. Jouvin, M. Makariev, Massimo Persic, P. Peñil, Markus Garczarczyk, Antonio Stamerra, J. Becerra González, F. de Palma, A. Arbet Engels, F. Leone, B. Machado de Oliveira Fraga, L. Nogués, Juan Abel Barrio, Sebastian Kiehlmann, A. Rugliancich, Marina Manganaro, S. Ansoldi, J. Rico, Anthony C. S. Readhead, M. Palatiello, H. Kubo, M. Karjalainen, Vitaly Neustroev, Laura Maraschi, Pawel Gliwny, Tomohiro Inada, N. Godinović, Giacomo Bonnoli, L. Bellizzi, Narek Sahakyan, M. Vazquez Acosta, Nicola Giglietto, P. G. Prada Moroni, K. Mannheim, M. Takahashi, Luca Tosti, S. Loporchio, D. Dominis Prester, Miguel Nievas-rosillo, Francesco Giordano, U. Barres de Almeida, C. Nigro, Valerio D'Elia, J. Otero-Santos, M. I. Martínez, Francesco Dazzi, Simone Mender, Alessia Spolon, G. Maneva, D. Hadasch, Elina Lindfors, Konstancja Satalecka, Luca Foffano, R. J. García López, Jenni Jormanainen, Michele Doro, A. Hahn, Takeshi Oka, Rumen Bachev, Kyoshi Nishijima, Daniel Mazin, A. Berti, A. Donini, B. Banerjee, T. Schweizer, Kari Nilsson, K. Noda, Armin Nabizadeh, G. Busetto, Shunsuke Sakurai, Daniel Kerszberg, M. Will, S. Gasparyan, A. Lamastra, M. Delfino, P. Munar-Adrover, A. López-Oramas, V. Fallah Ramazani, Carlo Vigorito, L. Saha, M. Mariotti, Walter Max-Moerbeck, N. Torres-Albà, Sarah M. Wagner, David Paneque, A. Biland, F. D' Ammando, Anton Strigachev, J. Besenrieder, M. Hütten, I. Vovk, C. Maggio, Arto Oksanen, L. Pavletić, D. Elsaesser, Matteo Cerruti, S. Fukami, Christian Fruck, U. Colin, David A. Green, D. Lelas, Kazuma Ishio, V. A. Acciari, W. Bhattacharyya, Yosuke Kobayashi, A. Fattorini, R. Reinthal, D. Zarić, Seiya Nozaki, E. Do Souto Espiñeira, Tomislav Terzić, Y. Kajiwara, Julian Sitarek, A. De Angelis, D. Miceli, M. V. Fonseca, W. Rhode, Francesco Longo, S. Lombardi, B. De Lotto, Roberto Carosi, Elisa Prandini, Sofia Ventura, D. Morcuende, N. Talebpour Sheshvan, W. Bednarek, Saša Mićanović, M. Minev, Riccardo Paoletti, M. Teshima, S. M. Colak, Markus Gaug, M. Peresano, Yoshiki Ohtani, Jordi Delgado, J. Kushida, P. Kehusmaa, Oscar Blanch, Ashot Chilingarian, D. Dorner, L. A. Antonelli, L. O. Takalo, V. Moreno, Giacomo D'Amico, S. Cikota, Kevin Schmidt, Y. Suda, Talvikki Hovatta, Fabrizio Tavecchio, Rodrigo Reeves, Eduardo Colombo, Ll. Font, M. Hodges, G. Ferrara, Dario Hrupec, M. A. Lopez, G. Ceribella, J. M. Paredes, Ciro Bigongiari, M. Mallamaci, R. López-Coto, Abelardo Moralejo, E. Moretti, D. Depaoli, Edgar Molina, G. Vanzo, T. Saito, P. Majumdar, Jose Carlos Herrera, F. Wierda, M. Strzys, L. Di Venere, Vincenzo Vitale, Dominik Baack, Jose Miguel Miranda, Tjark Miener, T. Surić, P. Da Vela, M. Ribó, I. Puljak

Publikováno v: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Digital.CSIC. Repositorio Institucional del CSIC
Astronomy and astrophysics 640, A132-(2020). doi:10.1051/0004-6361/202037811

MAGIC Collaboration: et al.
[Context]: It has become evident that one-zone synchrotron self-Compton models are not always adequate for very high-energy (VHE) gamma-ray-emitting blazars. While two-component models perform better, they are difficu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::015057fb9bfa47bda7e5a63398047c03
https://eprints.ucm.es/id/eprint/62660/1/ContrerasJL33preprint.pdf

A search for chaos in the blazar: W2R 1926+42 and its possible consequence

Autor: Banibrata Mukhopadhyay, R. Bachev, Anton Strigachev

Publikováno v: The Fourteenth Marcel Grossmann Meeting.

We search for low-dimensional chaotic signatures in the optical lightcurve of the $Kepler$ field blazar W2R 1926+42. The frequently used correlation integral method is employed in our analysis. We find no apparent evidence for the presence of low-dim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44b03398772629b54804b7c8857139ee
https://doi.org/10.1142/9789813226609_0388

MULTIFREQUENCY PHOTO-POLARIMETRIC WEBT OBSERVATION CAMPAIGN on the BLAZAR S5 0716+714: SOURCE MICROVARIABILITY and SEARCH for CHARACTERISTIC TIMESCALES

Autor: Ł. Stawarz, Stanisław Zoła, M. D. Jovanovic, R. Bachev, Arkady A. Arkharov, Koji S. Kawabata, Erika Benítez, Hiroshi Akitaya, G. Damljanovic, Alan P. Marscher, S. Dhalla, Giuseppe Leto, Antonio Frasca, Takahiro Ui, Svetlana G. Jorstad, J. M. Ohlert, Valeri M. Larionov, O. Vince, S. G. Sergeev, A. Di Paola, James R. Webb, Ryosuke Itoh, Michał Ostrowski, Katsutoshi Takaki, A. D. Cason, Shaoming Hu, D. Laurence, G. A. Borman, Anton Strigachev, N. Rizzi, D. Carosati, S. A. Klimanov, Yuki Moritani, Michitoshi Yoshida, M. Villata, A. C. Sadun, Alex Markowitz, Gopal Bhatta, Ivan S. Troitsky, David Hiriart, O. M. Kurtanidze, R. G. Chanishvili, Mahito Sasada, Joseph Moody, C. M. Raiteri, D. Jableka

Publikováno v: SCOPUS0004637X-2016-831-1-SID84994669319

Here we report on the results of the WEBT photo-polarimetric campaign targeting the blazar S5~0716+71, organized in March 2014 to monitor the source simultaneously in BVRI and near IR filters. The campaign resulted in an unprecedented dataset spannin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ab799c61cfce0939f50ac82096cec95
https://dspace.kpfu.ru/xmlui/handle/net/142561