Discovery of a very high energy gamma-ray signal from the 3C 66A/B region
| dc.contributor.author | Antoranz Canales, Pedro | |
| dc.contributor.author | Barrio Uña, Juan Abel | |
| dc.contributor.author | Contreras González, José Luis | |
| dc.contributor.author | Fonseca González, María Victoria | |
| dc.contributor.author | Miranda Pantoja, José Miguel | |
| dc.contributor.author | Nieto Castaño, Daniel | |
| dc.date.accessioned | 2023-06-20T03:35:53Z | |
| dc.date.available | 2023-06-20T03:35:53Z | |
| dc.date.issued | 2009-02-10 | |
| dc.description | © The American Astronomical Society. We thank the Instituto de Astrofisica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The support of the German BMBF and MPG, the Italian INFN, and Spanish MCINN is gratefully acknowledged. This work was also supported by ETH Research Grant TH 34/043, by the Polish MNiSzW Grant N N203 390834, and by the YIP of the Helmholtz Gemeinschaft. | |
| dc.description.abstract | The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 hr in 2007 August-December. The observations resulted in the discovery of a gamma-ray source centered at celestial coordinates R.A. = 2(h)23(m)12(s) and decl.=43 degrees 0'.7 (MAGIC J0223+430), coinciding with the nearby radio galaxy 3C 66B. A possible association of the excess with the blazar 3C 66A is discussed. The energy spectrum of MAGIC J0223+430 follows a power law with a normalization of (1.7 +/- 0.3(stat) +/- 0.6(syst)) x 10(-11) TeV(-1) cm(-2) s(-1) at 300 GeV and a photon index Gamma = -3.10 +/- 0.31(stat) +/- 0.2(syst). | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | German BMBF | |
| dc.description.sponsorship | German MPG | |
| dc.description.sponsorship | Italian INFN | |
| dc.description.sponsorship | Spanish MCINN | |
| dc.description.sponsorship | ETH | |
| dc.description.sponsorship | Polish MNiSzW | |
| dc.description.sponsorship | YIP of the Helmholtz Gemeinschaft | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/23041 | |
| dc.identifier.doi | 10.1088/0004-637X/692/1/L29 | |
| dc.identifier.issn | 2041-8205 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1088/0004-637X/692/1/L29 | |
| dc.identifier.relatedurl | http://iopscience.iop.org | |
| dc.identifier.relatedurl | http://arxiv.org/abs/0810.4712 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/43999 | |
| dc.issue.number | 1 | |
| dc.journal.title | Astrophysical journal letters | |
| dc.language.iso | eng | |
| dc.page.final | L33 | |
| dc.page.initial | L29 | |
| dc.publisher | IOP Publishing | |
| dc.relation.projectID | TH 34/043 | |
| dc.relation.projectID | N N203 390834 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 537 | |
| dc.subject.cdu | 539.1 | |
| dc.subject.keyword | BL Lacertae Objects | |
| dc.subject.keyword | Extragalactic Background Light | |
| dc.subject.keyword | Pulsar PSR J0218+4232 | |
| dc.subject.keyword | Magic Telescope | |
| dc.subject.keyword | Proton Blazar | |
| dc.subject.keyword | TEV Emission | |
| dc.subject.keyword | LAC Objects | |
| dc.subject.keyword | Spectra | |
| dc.subject.keyword | M87 | |
| dc.subject.keyword | Model. | |
| dc.subject.ucm | Electrónica (Física) | |
| dc.subject.ucm | Electricidad | |
| dc.subject.ucm | Física nuclear | |
| dc.subject.unesco | 2202.03 Electricidad | |
| dc.subject.unesco | 2207 Física Atómica y Nuclear | |
| dc.title | Discovery of a very high energy gamma-ray signal from the 3C 66A/B region | |
| dc.type | journal article | |
| dc.volume.number | 692 | |
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