Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25071
DC Field | Value | Language |
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dc.contributor.author | Ahnen, M. L. | en_US |
dc.contributor.author | Ansoldi, S. | en_US |
dc.contributor.author | ANTONELLI, Lucio Angelo | en_US |
dc.contributor.author | Antoranz, P. | en_US |
dc.contributor.author | Babic, A. | en_US |
dc.contributor.author | Banerjee, B. | en_US |
dc.contributor.author | Bangale, P. | en_US |
dc.contributor.author | Barres de Almeida, U. | en_US |
dc.contributor.author | Barrio, J. A. | en_US |
dc.contributor.author | Becerra González, J. | en_US |
dc.contributor.author | Bednarek, W. | en_US |
dc.contributor.author | Bernardini, E. | en_US |
dc.contributor.author | Biasuzzi, B. | en_US |
dc.contributor.author | Biland, A. | en_US |
dc.contributor.author | Blanch, O. | en_US |
dc.contributor.author | Bonnefoy, S. | en_US |
dc.contributor.author | Bonnoli, G. | en_US |
dc.contributor.author | Borracci, F. | en_US |
dc.contributor.author | Bretz, T. | en_US |
dc.contributor.author | Buson, S. | en_US |
dc.contributor.author | Carosi, A. | en_US |
dc.contributor.author | Chatterjee, A. | en_US |
dc.contributor.author | Clavero, R. | en_US |
dc.contributor.author | Colin, P. | en_US |
dc.contributor.author | Colombo, E. | en_US |
dc.contributor.author | Contreras, J. L. | en_US |
dc.contributor.author | Cortina, J. | en_US |
dc.contributor.author | COVINO, Stefano | en_US |
dc.contributor.author | Da Vela, P. | en_US |
dc.contributor.author | Dazzi, F. | en_US |
dc.contributor.author | De Angelis, A. | en_US |
dc.contributor.author | De Lotto, B. | en_US |
dc.contributor.author | de Oña Wilhelmi, E. | en_US |
dc.contributor.author | Delgado Mendez, C. | en_US |
dc.contributor.author | Di Pierro, F. | en_US |
dc.contributor.author | Domínguez, A. | en_US |
dc.contributor.author | Dominis Prester, D. | en_US |
dc.contributor.author | Dorner, D. | en_US |
dc.contributor.author | Doro, M. | en_US |
dc.contributor.author | Einecke, S. | en_US |
dc.contributor.author | Eisenacher Glawion, D. | en_US |
dc.contributor.author | Elsaesser, D. | en_US |
dc.contributor.author | Fernández-Barral, A. | en_US |
dc.contributor.author | Fidalgo, D. | en_US |
dc.contributor.author | Fonseca, M. V. | en_US |
dc.contributor.author | Font, L. | en_US |
dc.contributor.author | Frantzen, K. | en_US |
dc.contributor.author | Fruck, C. | en_US |
dc.contributor.author | Galindo, D. | en_US |
dc.contributor.author | García López, R. J. | en_US |
dc.contributor.author | Garczarczyk, M. | en_US |
dc.contributor.author | Garrido Terrats, D. | en_US |
dc.contributor.author | Gaug, M. | en_US |
dc.contributor.author | Giammaria, P. | en_US |
dc.contributor.author | Godinović, N. | en_US |
dc.contributor.author | González Muñoz, A. | en_US |
dc.contributor.author | Gora, D. | en_US |
dc.contributor.author | Guberman, D. | en_US |
dc.contributor.author | Hadasch, D. | en_US |
dc.contributor.author | Hahn, A. | en_US |
dc.contributor.author | Hanabata, Y. | en_US |
dc.contributor.author | Hayashida, M. | en_US |
dc.contributor.author | Herrera, J. | en_US |
dc.contributor.author | Hose, J. | en_US |
dc.contributor.author | Hrupec, D. | en_US |
dc.contributor.author | Hughes, G. | en_US |
dc.contributor.author | Idec, W. | en_US |
dc.contributor.author | Kodani, K. | en_US |
dc.contributor.author | Konno, Y. | en_US |
dc.contributor.author | Kubo, H. | en_US |
dc.contributor.author | Kushida, J. | en_US |
dc.contributor.author | LA BARBERA, ANTONINO | en_US |
dc.contributor.author | Lelas, D. | en_US |
dc.contributor.author | Lindfors, E. | en_US |
dc.contributor.author | Lombardi, S. | en_US |
dc.contributor.author | Longo, F. | en_US |
dc.contributor.author | López, M. | en_US |
dc.contributor.author | López-Coto, R. | en_US |
dc.contributor.author | López-Oramas, A. | en_US |
dc.contributor.author | Majumdar, P. | en_US |
dc.contributor.author | Makariev, M. | en_US |
dc.contributor.author | Mallot, K. | en_US |
dc.contributor.author | Maneva, G. | en_US |
dc.contributor.author | Manganaro, M. | en_US |
dc.contributor.author | Mannheim, K. | en_US |
dc.contributor.author | Maraschi, L. | en_US |
dc.contributor.author | Marcote, B. | en_US |
dc.contributor.author | Mariotti, M. | en_US |
dc.contributor.author | Martínez, M. | en_US |
dc.contributor.author | Mazin, D. | en_US |
dc.contributor.author | Menzel, U. | en_US |
dc.contributor.author | Miranda, J. M. | en_US |
dc.contributor.author | Mirzoyan, R. | en_US |
dc.contributor.author | Moralejo, A. | en_US |
dc.contributor.author | Moretti, E. | en_US |
dc.contributor.author | Nakajima, D. | en_US |
dc.contributor.author | Neustroev, V. | en_US |
dc.contributor.author | Niedzwiecki, A. | en_US |
dc.contributor.author | Nievas Rosillo, M. | en_US |
dc.contributor.author | Nilsson, K. | en_US |
dc.contributor.author | Nishijima, K. | en_US |
dc.contributor.author | Noda, K. | en_US |
dc.contributor.author | Orito, R. | en_US |
dc.contributor.author | Overkemping, A. | en_US |
dc.contributor.author | Paiano, S. | en_US |
dc.contributor.author | Palacio, J. | en_US |
dc.contributor.author | Palatiello, M. | en_US |
dc.contributor.author | Paneque, D. | en_US |
dc.contributor.author | Paoletti, R. | en_US |
dc.contributor.author | Paredes, J. M. | en_US |
dc.contributor.author | Paredes-Fortuny, X. | en_US |
dc.contributor.author | Pedaletti, G. | en_US |
dc.contributor.author | PERSIC, Massimo | en_US |
dc.contributor.author | Poutanen, J. | en_US |
dc.contributor.author | Prada Moroni, P. G. | en_US |
dc.contributor.author | PRANDINI, ELISA | en_US |
dc.contributor.author | Puljak, I. | en_US |
dc.contributor.author | Rhode, W. | en_US |
dc.contributor.author | Ribó, M. | en_US |
dc.contributor.author | Rico, J. | en_US |
dc.contributor.author | Rodriguez Garcia, J. | en_US |
dc.contributor.author | Saito, T. | en_US |
dc.contributor.author | Satalecka, K. | en_US |
dc.contributor.author | Schultz, C. | en_US |
dc.contributor.author | Schweizer, T. | en_US |
dc.contributor.author | Shore, S. N. | en_US |
dc.contributor.author | Sillanpää, A. | en_US |
dc.contributor.author | Sitarek, J. | en_US |
dc.contributor.author | Snidaric, I. | en_US |
dc.contributor.author | Sobczynska, D. | en_US |
dc.contributor.author | STAMERRA, Antonio | en_US |
dc.contributor.author | Steinbring, T. | en_US |
dc.contributor.author | Strzys, M. | en_US |
dc.contributor.author | Takalo, L. | en_US |
dc.contributor.author | Takami, H. | en_US |
dc.contributor.author | TAVECCHIO, Fabrizio | en_US |
dc.contributor.author | Temnikov, P. | en_US |
dc.contributor.author | Terzić, T. | en_US |
dc.contributor.author | Tescaro, D. | en_US |
dc.contributor.author | Teshima, M. | en_US |
dc.contributor.author | Thaele, J. | en_US |
dc.contributor.author | Torres, D. F. | en_US |
dc.contributor.author | Toyama, T. | en_US |
dc.contributor.author | Treves, A. | en_US |
dc.contributor.author | Verguilov, V. | en_US |
dc.contributor.author | Vovk, I. | en_US |
dc.contributor.author | Ward, J. E. | en_US |
dc.contributor.author | Will, M. | en_US |
dc.contributor.author | Wu, M. H. | en_US |
dc.contributor.author | Zanin, R. | en_US |
dc.contributor.author | MAGIC Collaboration | en_US |
dc.contributor.author | Casares, J. | en_US |
dc.contributor.author | Herrero, A. | en_US |
dc.date.accessioned | 2020-05-22T09:51:43Z | - |
dc.date.available | 2020-05-22T09:51:43Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25071 | - |
dc.description.abstract | Context. The gamma-ray binary LS I +61°303 is a well-established source from centimeter radio up to very high energy (VHE; E> 100 GeV). The broadband emission shows a periodicity of ~26.5 days, coincident with the orbital period. A longer (super-orbital) period of 1667 ± 8 days was proposed from radio variability and confirmed using optical and high-energy (HE; E> 100 MeV) gamma-ray observations. In this paper, we report on a four-year campaign performed by MAGIC together with archival data concentrating on a search for a long-timescale signature in the VHE emission from LS I +61°303. Aims: We focus on the search for super-orbital modulation of the VHE emission, similar to that observed at other energies, and on the search for correlations between TeV emission and an optical determination of the extension of the circumstellar disk. Methods: A four-year campaign has been carried out using the MAGIC telescopes. The source was observed during the orbital phases when the periodic VHE outbursts have occurred (φ = 0.55-0.75, one orbit = 26.496 days). Additionally, we included archival MAGIC observations and data published by the VERITAS collaboration in these studies. For the correlation studies, LS I +61°303 has also been observed during the orbital phases where sporadic VHE emission had been detected in the past (φ = 0.75-1.0). These MAGIC observations were simultaneous with optical spectroscopy from the LIVERPOOL telescope. Results: The TeV flux of the periodical outburst in orbital phases φ = 0.5-0.75 was found to show yearly variability consistent with the long-term modulation of ~4.5 years found in the radio band. This modulation of the TeV flux can be well described by a sine function with a best-fit period of 1610 ± 58 days. The complete data, including archival observations, span two super-orbital periods. There is no evidence for a correlation between the TeV emission and the mass-loss rate of the Be star, but this may be affected by the strong, short-timescale (as short as intra-day) variation displayed by the Hα fluxes. | en_US |
dc.language.iso | eng | en_US |
dc.title | Super-orbital variability of LS I +61°303 at TeV energies | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201527964 | en_US |
dc.identifier.scopus | 2-s2.0-84975718010 | en_US |
dc.identifier.isi | 000379141300085 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2016/07/aa27964-15/aa27964-15.html | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 591 | en_US |
dc.relation.firstpage | A76 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016A&A...591A..76A | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_6 Stars and stellar systems | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0002-5037-9034 | - |
crisitem.author.orcid | 0000-0001-9078-5507 | - |
crisitem.author.orcid | 0000-0002-5880-8913 | - |
crisitem.author.orcid | 0000-0002-6336-865X | - |
crisitem.author.orcid | 0000-0003-1853-4900 | - |
crisitem.author.orcid | 0000-0003-4502-9053 | - |
crisitem.author.orcid | 0000-0002-9430-5264 | - |
crisitem.author.orcid | 0000-0003-0256-0995 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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aa27964-15.pdf | 251.13 kB | Adobe PDF | View/Open |
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