Gamma-ray signatures from pair cascades in recombination-line radiation fields

Autor: Christoph Wendel, David Paneque, Amit Shukla, Karl Mannheim, Josefa González

Beams of ultra-relativistic electrons in blazar jets develop pair cascades interacting with ambient soft photons. Employing coupled kinetic equations with escape terms, we model the unsaturated pair cascade spectrum. We assume that the gamma rays pre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::138670cf85ea51ecd87e11de85560b37

Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity

Autor: Francesco Longo, Yuki Iwamura, Susumu Inoue, L. Nogués, M. I. Martínez, G. Pedaletti, Thomas Bretz, J. Buss, A. Rugliancich, Marina Manganaro, D. Galindo, Merja Tornikoski, Sabrina Einecke, Martin Makariev, Oscar Blanch, C. Leto, Ciro Bigongiari, Adrian Biland, D. Zarić, Andrii Neronov, M. Garczarczyk, Sargis Gasparyan, Konstancja Satalecka, Michele Doro, Marc Ribó, M. Noethe, J. Becerra González, Kazuma Ishio, J. Rico, Christian Fruck, Kyoshi Nishijima, Abelardo Moralejo, E. Moretti, Wolfgang Rhode, Christoph Wendel, Dominik Baack, Satoshi Masuda, Hidetoshi Kubo, Nikola Godinovic, B. Machado de Oliveira Fraga, Alexander Hahn, Manuel Delfino, Daniela Dorner, P. Giammaria, A. Niedzwiecki, Alessio Berti, U. Barres de Almeida, F. Verrecchia, G. Busetto, Lena Linhoff, D. Fidalgo, Damir Lelas, G. Ferrara, Alicia Fattorini, D. Hildebrand, David Paneque, V. A. Acciari, Bernd Schleicher, Gaia Vanzo, M. Peresano, Rodolfo Carosi, M. Perri, Alessandra Lamastra, John Hoang, Marcel Strzys, M. Gaug, Chiara Righi, M. Armas Padilla, D. Ninci, Ana Babić, Michael Blank, Dorota Sobczyńska, D. Dominis Prester, A. De Angelis, Vitaly Neustroev, I. Snidaric, F. Schulz, E. von Willert, D. Guberman, A. Y. Lien, J. Herrera, Juan Abel Barrio, B. Banerjee, J. van Scherpenberg, V. D'Elia, Narek Sahakyan, P. Temnikov, Stefano Ansoldi, R. J. García López, G. Maneva, E. Do Souto Espiñera, B. De Lotto, Elisa Bernardini, Riccardo Paoletti, S. Paiano, Karl Mannheim, Pablo Peñil, A. Shukla, Ivica Puljak, Jose Luis Contreras, D. Neise, Andrea Tramacere, Manuela Mallamaci, A. López-Oramas, Jordi Delgado, V. Fallah Ramazani, Juan Cortina, J. Palacio, P. Colin, R. Walter, J. M. Paredes, F. Di Pierro, Antonio Stamerra, Pratik Majumdar, Camilla Maggio, M. V. Fonseca, Ievgen Vovk, Francesco Dazzi, A. Fernández-Barral, Cosimo Nigro, P. Munar-Adrover, Massimo Persic, Dario Hrupec, L. A. Antonelli, Martin Will, D. Kuveždić, T. Schweizer, F. Leone, Anne Lähteenmäki, Tarek M. Hassan, Fabrizio Tavecchio, Masahiro Teshima, A. Somero, Kari Nilsson, Ll. Font, M. Bulinski, Wlodek Bednarek, Vitalii Sliusar, P. G. Prada Moroni, Junko Kushida, P. Da Vela, E. Prandini, N. Torres-Albà, Joni Tammi, Sebastian Achim Mueller, J. R. Garcia, Giacomo Bonnoli, Manuel Doerr, Stefano Gallozzi, Jose Miguel Miranda, Wrijupan Bhattacharyya, Julian Sitarek, T. Surić, Shimpei Tsujimoto, K. Bruegge, D. Elsaesser, Tomislav Terzić, Jürgen Besenrieder, E. Molina, E. Colombo, Lab Saha, Luca Foffano, Mosè Mariotti, A. Paravac, Saverio Lombardi, M. Nievas Rosillo, M. Minev, M. Balbo, D. Hadasch, R. Mirzoyan, A. Arbet-Engels, K. Sedlaczek, L. Maraschi, Elina Lindfors, Daniel Mazin, Stefan Cikota, M. Vazquez Acosta, Victoria Moreno, Stefano Covino, Tomoki Saito, Giovanni Ceribella, Aaron Dominguez, K. Noda, Sidika Merve Colak, M. López

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomy and astrophysics 637, A86-(2020). doi:10.1051/0004-6361/201834603
E-Prints Complutense. Archivo Institucional de la UCM
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid

[Context] Markarian 501 (Mrk 501) is a very high-energy (VHE) gamma-ray blazar located at z = 0:034, which is regularly monitored by a wide range of multi-wavelength instruments, from radio to VHE gamma rays. During a period of almost two weeks in Ju

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dff3abf4132b3e22ec7d2fe1fe9f116
http://urn.fi/urn:nbn:fi-fe2020070947183

Study of the Variable Broadband Emission of Markarian 501 during the Most Extreme Swift X-ray Activity

Autor: Josefa González, Julian Sitarek, Magic collaborations, Fabrizio Tavecchio, K. Noda, Kazuma Ishio, Christoph Wendel, David Paneque, Fermi-LAT

Publikováno v: Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019).

Markarian 501 is a bright very-high-energy (VHE, E>100 GeV) BL Lac object. Thanks to its brightness and its proximity (z=0.034), it can be detected in the VHE even during low states, making it an excellent blazar for unbiased (not dependent on the em

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1069d6c025d450bea4a33474a28a62d3
https://doi.org/10.22323/1.358.0554

Simulating electromagnetic cascades in magnetospheres of active galactic nuclei

Autor: Amit Shukla, Dorit Glawion, Karl Mannheim, Christoph Wendel

Publikováno v: AIP Conference Proceedings.

Context: At the low accretion-rates typical for BL Lac-objects, magnetospheres of active galactic nuclei can develop vacuum gaps with strong electric fields accelerating charged seed particles parallel to the magnetic fields up to ultra-relativistic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b145075c5c9d1d774809e8f8f608fe49
https://doi.org/10.1063/1.4968972

Transient junction temperature measurements of power MOSFETs in the μs range

Autor: Michael Ebli, Martin Pfost, Christoph Wendel

Publikováno v: 2015 31st Thermal Measurement, Modeling & Management Symposium (SEMI-THERM).

The experimental characterization of the thermal impedance Zth of large power MOSFETs is commonly done by measuring the junction temperature Tj in the cooling phase after the device has been heated, preferably to a high junction temperature for incre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::064b5a46f6ca910b3397cad6e0f26f83
https://doi.org/10.1109/semi-therm.2015.7100171