Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/44986
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DC Field | Value | Language |
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dc.contributor.author | Albert, J. | - |
dc.contributor.author | Aliu, E. | - |
dc.contributor.author | Antoranz, P. | - |
dc.contributor.author | Baixeras Divar, Carmen | - |
dc.contributor.author | Barrio, J. A. | - |
dc.contributor.author | Bordas Coma, Pol | - |
dc.contributor.author | Bosch i Ramon, Valentí | - |
dc.contributor.author | Camara, M. | - |
dc.contributor.author | Contreras, J. L. | - |
dc.contributor.author | Cortina Blanco, Juan | - |
dc.contributor.author | Cea del Pozo, Elsa de | - |
dc.contributor.author | Reyes, R. de los | - |
dc.contributor.author | Errando, M. | - |
dc.contributor.author | Fernández Sánchez, Enrique | - |
dc.contributor.author | Firpo, R. | - |
dc.contributor.author | Paredes i Poy, Josep Maria | - |
dc.contributor.author | Ribó Gomis, Marc | - |
dc.contributor.author | Sierpowska-Bartosik, A. | - |
dc.contributor.author | Tescaro, Diego | - |
dc.contributor.author | Zabalza de Torres, Víctor | - |
dc.date.accessioned | 2013-07-19T11:18:45Z | - |
dc.date.available | 2013-07-19T11:18:45Z | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | http://hdl.handle.net/2445/44986 | - |
dc.description.abstract | The atmospheric Cherenkov gamma-ray telescope MAGIC, designed for a low-energy threshold, has detected very-high-energy gamma rays from a giant flare of the distant Quasi-Stellar Radio Source (in short: radio quasar) 3C 279, at a distance of more than 5 billion light-years (a redshift of 0.536). No quasar has been observed previously in very-high-energy gamma radiation, and this is also the most distant object detected emitting gamma rays above 50 gigaelectron volts. Because high-energy gamma rays may be stopped by interacting with the diffuse background light in the universe, the observations by MAGIC imply a low amount for such light, consistent with that known from galaxy counts. | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Association for the Advancement of Science | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1126/science.1157087 | - |
dc.relation.ispartof | Science, 2008, vol. 320, num. 5884, p. 1752-1754 | - |
dc.relation.uri | http://dx.doi.org/10.1126/science.1157087 | - |
dc.rights | (c) Albert, J. et al., 2008 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Quàsars | - |
dc.subject.classification | Telescopis espacials | - |
dc.subject.classification | Astronomia de raigs gamma | - |
dc.subject.classification | Astrofísica | - |
dc.subject.other | Quasars | - |
dc.subject.other | Space telescopes | - |
dc.subject.other | Gamma ray astronomy | - |
dc.subject.other | Astrophysics | - |
dc.title | Very-High-Energy gamma rays from a Distant Quasar: How Transparent Is the Universe? | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 567363 | - |
dc.date.updated | 2013-07-19T11:18:45Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 18583607 | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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567363.pdf | 311.85 kB | Adobe PDF | View/Open |
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