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http://hdl.handle.net/2445/150577
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DC Field | Value | Language |
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dc.contributor.author | Bosch i Ramon, Valentí | - |
dc.contributor.author | Munar i Adrover, Pere | - |
dc.contributor.author | Moldón Vara, Francisco Javier | - |
dc.contributor.author | Paredes i Poy, Josep Maria | - |
dc.contributor.author | Ribó Gomis, Marc | - |
dc.contributor.author | MAGIC Collaboration | - |
dc.date.accessioned | 2020-02-18T11:58:43Z | - |
dc.date.available | 2020-02-18T11:58:43Z | - |
dc.date.issued | 2012-02 | - |
dc.identifier.issn | 0004-637X | - |
dc.identifier.uri | http://hdl.handle.net/2445/150577 | - |
dc.description.abstract | We present very high energy (E > 100 GeV) γ-ray observations of the γ-ray binary system LS I +61°303 obtained with the MAGIC stereo system between 2009 October and 2010 January. We detect a 6.3σ γ-ray signal above 400 GeV in the combined data set. The integral flux above an energy of 300 GeV is F(E > 300 GeV) = (1.4 ± 0.3stat ± 0.4syst) × 10-12 cm-2 s-1, which corresponds to about 1.3% of the Crab Nebula flux in the same energy range. The orbit-averaged flux of LS I +61°303 in the orbital phase interval 0.6-0.7, where a maximum of the TeV flux is expected, is lower by almost an order of magnitude compared to our previous measurements between 2005 September and 2008 January. This provides evidence for a new low-flux state in LS I +61°303. We find that the change to the low-flux state cannot be solely explained by an increase of photon-photon absorption around the compact star. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics (IOP) | - |
dc.relation.isformatof | Reproducció del document publicat a: http://doi.org/10.1088/0004-637X/746/1/80 | - |
dc.relation.ispartof | Astrophysical Journal, 2012, vol. 746, p. 80 | - |
dc.relation.uri | http://doi.org/10.1088/0004-637X/746/1/80 | - |
dc.rights | (c) American Astronomical Society, 2012 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Astrofísica | - |
dc.subject.classification | Raigs gamma | - |
dc.subject.other | Astrophysics | - |
dc.subject.other | Gamma rays | - |
dc.title | Detection of the γ-Ray Binary LS I +61°303 in a Low-flux State at Very High Energy γ-Rays with the MAGIC Telescopes in 2009 | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 605909 | - |
dc.date.updated | 2020-02-18T11:58:43Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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605909.pdf | 173 kB | Adobe PDF | View/Open |
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