Gamma-ray spectral variability of HBL 1ES 1959+650 during MJD 57400–58000 and its consequence on leptonic blazar emission model

Autor: B Ghosal, A Tolamatti, S Bhattacharyya, N Bhatt, K K Yadav, P Chandra, M P Das, A K Tickoo, R C Rannot, K K Gaur, A Goyal, N Kumar, P Marandi, N K Agarwal, M Kothari, D Sarkar, M Sharma, N Chouhan, C Borwankar, V K Dhar, M K Koul, K Venugopal, S V Kotwal, S Godiyal, S Godambe, N Mankuzhiyil

Publikováno v: Monthly Notices of the Royal Astronomical Society. 517:5473-5482

1ES 1959+650, a high-energy peaked BL Lac object (HBL) with redshift z = 0.047, is known to exhibit flux and spectral variability in different energy bands. In this work, we primarily considered the simultaneous Fermi-LAT and Swift-XRT data of 1ES 19

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6165f3cf6fb24953619bcfea2cd41e0b
https://doi.org/10.1093/mnras/stac2950

X-ray emission study of extreme Blazars using AstroSat

Autor: Ranjeev Misra, Sunder Sahayanathan, N. Mankuzhiyil, Rupjyoti Gogoi, Zahoor Malik, Atreyee Sinha, Pranjupriya Goswami, Sunil Chandra

Publikováno v: Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::385ccc00f56ae0367588054fa6743632
https://doi.org/10.22323/1.395.0961

Clues on high-energy emission mechanism from blazar 3C 454.3 during 2015 August flare

Autor: Sunder Sahayanathan, Ranjeev Misra, Zahir Shah, Pankaj Kushwaha, Naseer Iqbal, N. Mankuzhiyil

Publikováno v: Monthly Notices of the Royal Astronomical Society. 470:3283-3299

We perform a detailed spectral study of a recent flaring activity from the Flat Spectrum Radio Quasar (FSRQ), 3C\,454.3, observed simultaneously in optical, UV, X-ray and $\gamma$-ray energies during 16 to 28 August, 2015. The source reached its peak

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f843c0eb6a58c58f2e0343df452fb3
https://doi.org/10.1093/mnras/stx1194

Multiwavelength study of the radio galaxy NGC 1275 with TACTIC, Fermi and Swift during December, 2016 – February, 2017

Autor: S. V. Godambe, V. K. Dhar, K. Chanchalani, P. Chandra, N. Mankuzhiyil, K. K. Yadav, R. C. Rannot, B. Ghosal, K. K. Singh, A. K. Tickoo, N. K. Agarwal, S. Godiyal, Sunder Sahayanathan, Naveen Kumar, N. Chouhan, M. K. Koul, K. Venugopal, M. Sharma, C. Borwankar, A. Tolamatti, A. Goyal, P. Marandi, M. Kothari, C.K. Bhat, K.K. Gaur

Publikováno v: New Astronomy. 80:101402

Located in the Perseus galaxy cluster, NGC 1275 ( z = 0.0179 ), is the brightest radio galaxy detected in both high energy (HE ; E > 100 MeV) and very high energy (VHE ; E > 100 GeV) regimes. Here we present the results from the observations of NGC 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::206a0b83842b0fe0d5e4a49649d903d3
https://doi.org/10.1016/j.newast.2020.101402

The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays

Autor: F. Wierda, M. Peresano, Cosimo Nigro, Alexander Hahn, M. Nievas Rosillo, R. Reinthal, M. Hayashida, M. Minev, N. Mankuzhiyil, Julian Sitarek, Razmik Mirzoyan, U. Barres de Almeida, Nikola Godinovic, Damir Lelas, J. M. Paredes, Tomislav Terzić, Marc Ribó, Kazuma Ishio, Antonio Stamerra, Ievgen Vovk, Dorota Sobczyńska, M. Delfino, Wrijupan Bhattacharyya, Juan Abel Barrio, P. Bangale, Francesco Longo, D. Dominis Prester, Hidetoshi Kubo, B. De Lotto, J. E. Ward, Rodolfo Carosi, Camilla Maggio, Jenni Jormanainen, S. Paiano, M. Lopez, Karl Mannheim, P. G. Prada Moroni, Marcel Strzys, Ivica Puljak, John Hoang, Stefano Ciprini, Pierre Colin, Daniela Dorner, Gaia Vanzo, Dominik Baack, R. Desiante, Jordi Delgado, T. Schweizer, Fallah Ramazani, F. Di Pierro, M. Gaug, G. Ferrara, Anthony C. S. Readhead, D. Elsaesser, J. Becerra González, J. Herrera, G. Bonnoli, M. Vazquez Acosta, Talvikki Hovatta, Neustroev, L. Nogués, R. J. García López, Martin Makariev, Koji Noda, Elisa Bernardini, L. Maraschi, A. Niedzwiecki, Francesco Dazzi, A. Fernández-Barral, Elina Lindfors, K. Pfrang, Oscar Blanch, E. Moretti, Dario Hrupec, P. Da Vela, Pratik Majumdar, M. V. Fonseca, Darko Zarić, Aaron Dominguez, Daniel Mazin, A. Berti, Ciro Bigongiari, J. Palacio, Massimo Persic, F. Leone, Anne Lähteenmäki, Stefano Ansoldi, S Barcewicz, M. Garczarczyk, David Paneque, Masahiro Teshima, Martin Will, Riccardo Paoletti, Stefano Covino, Walter Max-Moerbeck, R. Ch. Berse, Sidika Merve Colak, Yuki Iwamura, Kyoshi Nishijima, D. Ninci, Abelardo Moralejo, J. R. Garcia, Susumu Inoue, D. Guberman, E. Prandini, Louis Antonelli, R. J. C. Vera, Alessandra Lamastra, M. I. Martínez, Tomoki Saito, Giovanni Ceribella, Marina Manganaro, Merja Tornikoski, Joni Tammi, Sabrina Einecke, P. Cumani, Chiara Righi, Konstancja Satalecka, Wolfgang Rhode, Michele Doro, P. Temnikov, K. Mielke, Iva Šnidarić, Sebastian Kiehlmann, B. Banerjee, Alicia Fattorini, C. Arcaro, Pablo Peñil, Shimpei Tsujimoto, Jürgen Besenrieder, Adrian Biland, Moreno, Tihomir Surić, J. Rico, Satoshi Masuda, Arka Chatterjee, P. Giammaria, D. Fidalgo, N. Torres-Albà, Tarek M. Hassan, G. Pedaletti, Yusuke Konno, W. Bednarek, Fabrizio Tavecchio, Ll. Font, A. De Angelis, Stefano Gallozzi, Jose Miguel Miranda, G. Maneva, Ana Babić, J. Kushida, Jose Luis Contreras, Juan Cortina, Kari Nilsson, E. Colombo, Lab Saha, Luca Foffano, L. O. Takalo, D. Hadasch, Mosè Mariotti, Saverio Lombardi, Andrea Rugliancich, D’Elia, Christian Fruck

Publikováno v: BASE-Bielefeld Academic Search Engine
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
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Monthly notices of the Royal Astronomical Society 480(1), 879-892 (2018). doi:10.1093/mnras/sty1753

The MAGIC telescopes observed S2 0109+22 in 2015 July during its flaring activity in high energy gamma rays observed by Fermi-LAT. We analyse the MAGIC data to characterise the very high energy (VHE) gamma-ray emission of S2 0109+22, which belongs to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3db9701a2a57aaa0c8821ddf3ff0f282
https://bib-pubdb1.desy.de/record/415642