Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016
Gonzalez JB; Zaric D; Acciari VA; Moralejo A; Fukami S; Paiano S; Longo F; Kushida J; Lopez RJG; Ishio K; Hadasch D; Donini A; De Lotto B; Schweizer T; Moreno V; Fernandez-Barral A; Maggio C; Righi C; Nozaki S; Maraschi L; Hayashida M; Bosnjak Z; Green D; Snidaric I; van Scherpenberg J; Delgado J; Antonelli LA; Ansoldi S; Cikota S; Busetto G; Banerjee B; Munar-Adrover P; Lelas D; Mazin D; Palatiello M; Elsaesser D; Fonseca MV; Cortina J; Doro M; Tavecchio F; Rhode W; Teshima M; Delfino M; Bonnoli G; Lopez-Coto R; Gaug M; Miranda JM; Inoue S; Ribo M; Satalecka K; De Angelis A; Guberman D; Nigro C; Masuda S; Prester DD; Takahashi M; Tsujimoto S; Jouvin L; Molina E; Berti A; Kubo H; Hoang J; Godinovic N; Gallozzi S; Suric T; Bellizzi L; Temnikov P; Minev M; Dazzi F; Fidalgo D; Paoletti R; Dorner D; Bhattacharyya W; Lombardi S; Palacio J; Paredes JM; Colin U; Nogues L; Vanzo G; Morcuende D; D'Elia V; Makariev M; Prandini E; Espineira ED; Mariotti M; Lindfors E; Fruck C; Ceribella G; Strzys M; Manganaro M; Colombo E; Hahn A; Niedzwiecki A; Rugliancich A; Neustroev V; Font L; Torres-Alba N; Lopez-Oramas A; Baack D; Peresano M; Martinez M; Somero A; Puljak I; Garczarczyk M; Fattorini A; Majumdar P; Nilsson K; Iwamura Y; Nothe M; Vovk I; de Almeida UB; Carosi R; Ferrara G; Bigongiari C; Chai Y; Da Vela P; Paneque D; Moroni PGP; Babic A; Noda K; Sobczynska D; Bernardini E; Mannheim K; Barrio JA; Strom D; Herrera J; Maneva G; Sahakyan N; Saito T; Leone F; Ramazani VF; Will M; Besenrieder J; Nishijima K; Ninci D; Contreras JL; Rico J; Moretti E; Di Pierro F; Hrupec D; Penil P; Acosta MV; Sitarek J; Covino S; Stamerra A; Inada T; Bednarek W; Colak SM; Lopez M; Terzic T; Gasparyan S; Persic M; Miceli D; Biland A; Lamastra A; Mirzoyan R; Mallamaci M; Sakurai S; Micanovic S; Foffano L; Blanch O; Fraga BMD; Saha L; Engels AA
Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016
Gonzalez JB
Zaric D
Acciari VA
Moralejo A
Fukami S
Paiano S
Longo F
Kushida J
Lopez RJG
Ishio K
Hadasch D
Donini A
De Lotto B
Schweizer T
Moreno V
Fernandez-Barral A
Maggio C
Righi C
Nozaki S
Maraschi L
Hayashida M
Bosnjak Z
Green D
Snidaric I
van Scherpenberg J
Delgado J
Antonelli LA
Ansoldi S
Cikota S
Busetto G
Banerjee B
Munar-Adrover P
Lelas D
Mazin D
Palatiello M
Elsaesser D
Fonseca MV
Cortina J
Doro M
Tavecchio F
Rhode W
Teshima M
Delfino M
Bonnoli G
Lopez-Coto R
Gaug M
Miranda JM
Inoue S
Ribo M
Satalecka K
De Angelis A
Guberman D
Nigro C
Masuda S
Prester DD
Takahashi M
Tsujimoto S
Jouvin L
Molina E
Berti A
Kubo H
Hoang J
Godinovic N
Gallozzi S
Suric T
Bellizzi L
Temnikov P
Minev M
Dazzi F
Fidalgo D
Paoletti R
Dorner D
Bhattacharyya W
Lombardi S
Palacio J
Paredes JM
Colin U
Nogues L
Vanzo G
Morcuende D
D'Elia V
Makariev M
Prandini E
Espineira ED
Mariotti M
Lindfors E
Fruck C
Ceribella G
Strzys M
Manganaro M
Colombo E
Hahn A
Niedzwiecki A
Rugliancich A
Neustroev V
Font L
Torres-Alba N
Lopez-Oramas A
Baack D
Peresano M
Martinez M
Somero A
Puljak I
Garczarczyk M
Fattorini A
Majumdar P
Nilsson K
Iwamura Y
Nothe M
Vovk I
de Almeida UB
Carosi R
Ferrara G
Bigongiari C
Chai Y
Da Vela P
Paneque D
Moroni PGP
Babic A
Noda K
Sobczynska D
Bernardini E
Mannheim K
Barrio JA
Strom D
Herrera J
Maneva G
Sahakyan N
Saito T
Leone F
Ramazani VF
Will M
Besenrieder J
Nishijima K
Ninci D
Contreras JL
Rico J
Moretti E
Di Pierro F
Hrupec D
Penil P
Acosta MV
Sitarek J
Covino S
Stamerra A
Inada T
Bednarek W
Colak SM
Lopez M
Terzic T
Gasparyan S
Persic M
Miceli D
Biland A
Lamastra A
Mirzoyan R
Mallamaci M
Sakurai S
Micanovic S
Foffano L
Blanch O
Fraga BMD
Saha L
Engels AA
EDP SCIENCES S A
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042822394
https://urn.fi/URN:NBN:fi-fe2021042822394
Tiivistelmä
1ES 1959+650 is a bright TeV high-frequency-peaked BL Lac object exhibiting interesting features like "orphan" TeV flares and broad emission in the high-energy regime that are difficult to interpret using conventional one-zone Synchrotron Self-Compton (SSC) scenarios. We report the results from the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) observations in 2016 along with the multi-wavelength data from the Fermi Large Area Telescope (LAT) and Swift instruments. MAGIC observed 1ES 1959+650 with different emission levels in the very-high-energy (VHE, E> 100 GeV) gamma -ray band during 2016. In the long-term data, the X-ray spectrum becomes harder with increasing flux and a hint of a similar trend is also visible in the VHE band. An exceptionally high VHE flux reaching similar to 3 times the Crab Nebula flux was measured by MAGIC on the 13 and 14 of June, and 1 July 2016 (the highest flux observed since 2002). During these flares, the high-energy peak of the spectral energy distribution (SED) lies in the VHE domain and extends up to several TeV. The spectrum in the gamma -ray (both Fermi-LAT and VHE bands) and the X-ray bands are quite hard. On 13 June and 1 July 2016, the source showed rapid variations in the VHE flux within timescales of less than an hour. A simple one-zone SSC model can describe the data during the flares requiring moderate to large values of the Doppler factors (delta >= 30-60). Alternatively, the high-energy peak of the SED can be explained by a purely hadronic model attributed to proton-synchrotron radiation with jet power L-jet similar to 10(46) erg s(-1) and under high values of the magnetic field strength (similar to 100 G) and maximum proton energy (similar to few EeV). Mixed lepto-hadronic models require super-Eddington values of the jet power. We conclude that it is difficult to get detectable neutrino emission from the source during the extreme VHE flaring period of 2016.
Kokoelmat
- Rinnakkaistallenteet [19206]