2024-03-29T14:57:37Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1787332022-05-31T09:18:00Zcom_10261_97com_10261_4col_10261_350
DIGITAL.CSIC
author
MAGIC Collaboration
author
Acciari, V.A.
author
Ansoldi, S.
author
Antonelli, L. A.
author
Arbet Engels, A.
author
Arcaro, C.
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Baack, D.
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Babi¿, A.
author
Banerjee, B.
author
Bangale, P.
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Barres de Almeida, U.
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Ramakrishnan, V.
author
Fernández-Barral, A.
author
Thum, C.
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Agudo, Iván
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Nievas Rosillo, M.
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de Angelis, A.
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de Lotto, B.
author
Molina, Sol
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Mirzoyan, R.
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Godinović, N.
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Longo, F.
author
Myserlis, I.
author
García López, R.J.
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Neustroev, V.
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Kim, J. -Y.
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Majumdar, P.
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Inoue, S.
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Biland, A.
author
Guberman, D.
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Blanch, O.
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Bonnoli, G.
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Prada Moroni, P. G.
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Ferrara, G.
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Fidalgo, D.
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Carosi, R.
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Palacio, J.
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Kuveždi¿, D.
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Colombo, E.
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Ishio, K.
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Peresano, M.
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Contreras, J.L.
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Miranda, J. M.
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López, M.
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Delfino, M.
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Lamastra, A.
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Delgado, J.
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di Pierro, F.
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Hadasch, D.
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Hahn, A.
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Munar-Adrover, P.
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Righi, C.
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Maneva, G.
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Doro, M.
author
López-Oramas, A.
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Schweizer, T.
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Einecke, S.
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Paiano, S.
author
Foffano, L.
author
Manganaro, M.
author
Fonseca, M.V.
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Font, L.
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Lelas, D.
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Leone, F.
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Peñil, P.
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Berti, A.
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Molina, E.
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Garczarczyk, M.
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Tsujimoto, S.
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Niedzwiecki, A.
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Rico, J.
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Hassan, T.
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Moralejo, A.
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Herrera, J.
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Hoang, J.
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Mannheim, K.
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Nilsson, K.
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Satalecka, K.
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Paneque, D.
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Iwamura, Y.
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Hovatta, T.
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Persic, M.
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Tavecchio, F.
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Lindfors, E.
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Paoletti, R.
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Nigro, C.
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Lombardi, S.
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Ninci, D.
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Torres-Albà, N.
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Rugliancich, A.
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Maggio, C.
author
Fuentes, A.
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Sitarek, J.
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Zari¿, D.
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Maraschi, L.
author
Saha, L.
author
Bednarek, W.
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Mariotti, M.
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Sandrinelli, A.
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Temnikov, P.
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Martínez, M.
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Šnidari¿, I.
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Masuda, S.
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Mazin, D.
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Da Vela, Paolo
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Prandini, E.
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Puljak, I.
author
Minev, M.
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Cikota, S.
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van Scherpenberg, J.
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Moreno, Vicente
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Terzi¿, T.
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Covino, S.
author
Moretti, E.
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Gómez Fernández, J. L.
author
Fermi-LAT Collaboration
author
Nishijima, K.
author
Vanzo, G.
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Noda, K.
author
Nogués, L.
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Sobczynska, D.
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Somero, A.
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Barrio, J. A.
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Domínguez, A.
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Kiehlmann, S.
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Paredes, J. M.
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Becerra González, J.
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Fallah Ramazani, V.
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Pedaletti, G.
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Ceribella, G.
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García, J. R
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Max-Moerbeck, W.
author
Rhode, W.
author
Ribó, M.
author
Vázquez Acosta, M.
author
Vovk, I.
author
Cortina, J.
author
Galindo, D.
author
Casadio, C.
author
Saito, T.
author
Giammaria, P.
author
Bernardini, E.
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Do Souto Espiñera, E.
author
Stamerra, A.
author
Traianou, E.
author
Strzys, M.
author
Suri¿, T.
author
Tornikoski, M.
author
Bhattacharyya, W.
author
Elsaesser, D.
author
Colak, S.M.
author
Teshima, M.
author
Kushida, J.
author
D'Elia, V.
author
Fruck, C.
author
Ward, J. E.
author
Colin, P.
author
Besenrieder, J.
author
Will, M.
author
Bigongiari, C.
author
Gaug, M.
author
Dominis Prester, D.
author
Raiteri, C. M.
author
Makariev, M.
author
Fattorini, A.
author
Hrupec, D.
author
Lähteenmäki, A.
author
Dorner, D.
author
Dazzi, F.
author
Tammi, J.
author
Kubo, H.
author
Gallozzi, S.
funder
Federal Ministry of Education and Research (Germany)
funder
Max Planck Society
funder
Ministerio de Economía y Competitividad (España)
funder
Swiss National Science Foundation
funder
Junta de Andalucía
2019-03-28T09:26:59Z
2019-03-28T09:26:59Z
2018
Astronomy and Astrophysics 619: A159 (2018)
http://hdl.handle.net/10261/178733
10.1051/0004-6361/201833618
http://dx.doi.org/10.13039/501100003329http://dx.doi.org/10.13039/501100004189http://dx.doi.org/10.13039/501100002347http://dx.doi.org/10.13039/501100011011
PKS 1510-089 is a flat spectrum radio quasar strongly variable in the optical and GeV range. To date, very high-energy (VHE, > 100 GeV) emission has been observed from this source either during long high states of optical and GeV activity or during short flares. Aims. We search for low-state VHE gamma-ray emission from PKS 1510-089. We characterize and model the source in a broadband context, which would provide a baseline over which high states and flares could be better understood. Methods. PKS 1510-089 has been monitored by the MAGIC telescopes since 2012. We use daily binned Fermi-LAT flux measurements of PKS 1510-089 to characterize the GeV emission and select the observation periods of MAGIC during low state of activity. For the selected times we compute the average radio, IR, optical, UV, X-ray, and gamma-ray emission to construct a low-state spectral energy distribution of the source. The broadband emission is modeled within an external Compton scenario with a stationary emission region through which plasma and magnetic fields are flowing. We also perform the emission-model-independent calculations of the maximum absorption in the broad line region (BLR) using two different models. Results. The MAGIC telescopes collected 75 hr of data during times when the Fermi-LAT flux measured above 1 GeV was below 3? × 10 -8 ? cm -2 ? s -1 , which is the threshold adopted for the definition of a low gamma-ray activity state. The data show a strongly significant (9.5¿) VHE gamma-ray emission at the level of (4.27 ± 0.61 stat ) × 10 -12 ? cm -2 ? s -1 above 150 GeV, a factor of 80 lower than the highest flare observed so far from this object. Despite the lower flux, the spectral shape is consistent with earlier detections in the VHE band. The broadband emission is compatible with the external Compton scenario assuming a large emission region located beyond the BLR. For the first time the gamma-ray data allow us to place a limit on the location of the emission region during a low gamma-ray state of a FSRQ. For the used model of the BLR, the 95% confidence level on the location of the emission region allows us to place it at a distance > 74% of the outer radius of the BLR. © ESO 2018.
eng
openAccess
Galaxies: active
Galaxies: jets
Quasars: individual: PKS 1510-089
Gamma rays: galaxies
Detection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017
artículo
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URL
https://digital.csic.es/bitstream/10261/178733/1/IAA_2018_aa33618-18.pdf
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028d3a51b77b1cde1bcf9efdcf83a632
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IAA_2018_aa33618-18.pdf