PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT
dc.contributor.author | ALLAFORT, A. | |
dc.contributor.author | BALDINI, Luca | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | BALLET, Jean | |
dc.contributor.author | BARBIELLINI, Guido | |
dc.contributor.author | BASTIERI, D. | |
dc.contributor.author | BELLAZZINI, R. | |
dc.contributor.author | BONAMENTE, E. | |
dc.contributor.author | BOTTACINI, E. | |
hal.structure.identifier | Institut de recherche en astrophysique et planétologie [IRAP] | |
dc.contributor.author | J. BRANDT, T. | |
dc.contributor.author | BREGEON, J. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | BRUEL, Pascal | |
dc.contributor.author | BUEHLER, R. | |
dc.contributor.author | A. CALIANDRO, G. | |
dc.contributor.author | A. CAMERON, R. | |
dc.contributor.author | CARAVEO, P. A. | |
dc.contributor.author | CECCHI, C. | |
dc.contributor.author | CHAVES, R.C.G. | |
dc.contributor.author | CHEKHTMAN, A. | |
dc.contributor.author | CHIARO, G. | |
dc.contributor.author | CLAUS, R. | |
dc.contributor.author | D'AMMANDO, F. | |
dc.contributor.author | DE PALMA, F. | |
dc.contributor.author | DI VENERE, L. | |
dc.contributor.author | S. DRELL, P. | |
dc.contributor.author | FAVUZZI, C. | |
dc.contributor.author | C. FERRARA, E. | |
dc.contributor.author | FRANCKOWIAK, A. | |
hal.structure.identifier | Istituto Nazionale di Fisica Nucleare, sezione di Bari [INFN, sezione di Bari] | |
dc.contributor.author | GARGANO, F. | |
dc.contributor.author | GASPARRINI, D. | |
dc.contributor.author | GIGLIETTO, N. | |
dc.contributor.author | GIROLETTI, M. | |
dc.contributor.author | GLANZMAN, T. | |
dc.contributor.author | GODFREY, G. | |
dc.contributor.author | GUIRIEC, S. | |
hal.structure.identifier | IEEC-CSIC | |
dc.contributor.author | HADASCH, D. | |
dc.contributor.author | K. HARDING, A. | |
dc.contributor.author | HAYASHIDA, M. | |
dc.contributor.author | HAYASHI, K. | |
dc.contributor.author | HAYS, E. | |
dc.contributor.author | HEWITT, J. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | HORAN, D. | |
dc.contributor.author | JOGLER, T. | |
dc.contributor.author | KERR, M. | |
dc.contributor.author | KNÖDLSEDER, Jürgen | |
dc.contributor.author | LANDE, J. | |
dc.contributor.author | LARSSON, S. | |
dc.contributor.author | LATRONICO, L. | |
dc.contributor.author | LEMOINE-GOUMARD, M. | |
dc.contributor.author | LONGO, F. | |
hal.structure.identifier | Istituto Nazionale di Fisica Nucleare, sezione di Bari [INFN, sezione di Bari] | |
dc.contributor.author | LOPARCO, F. | |
dc.contributor.author | LUBRANO, P. | |
dc.contributor.author | MALYSHEV, D. | |
dc.contributor.author | MARELLI, M. | |
dc.contributor.author | MAYER, M. | |
dc.contributor.author | N. MAZZIOTTA, M. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | MEHAULT, J. | |
dc.contributor.author | MIZUNO, T. | |
dc.contributor.author | E. MONZANI, M. | |
dc.contributor.author | MORSELLI, A. | |
dc.contributor.author | MURGIA, S. | |
dc.contributor.author | OMODEI, N. | |
dc.contributor.author | ORIENTI, M. | |
dc.contributor.author | ORLANDO, E. | |
dc.contributor.author | PANEQUE, D. | |
dc.contributor.author | PESCE-ROLLINS, M. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | PIERBATTISTA, M. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | PIRON, F. | |
dc.contributor.author | PIVATO, G. | |
dc.contributor.author | PORTER, T.A. | |
dc.contributor.author | RANDO, R. | |
dc.contributor.author | RAZZANO, M. | |
hal.structure.identifier | FERMI | |
dc.contributor.author | REPOSEUR, T. | |
dc.contributor.author | SARTORI, A. | |
dc.contributor.author | M. SAZ PARKINSON, P. | |
dc.contributor.author | SGRO, C. | |
dc.contributor.author | SPINELLI, P. | |
dc.contributor.author | W. STRONG, A. | |
dc.contributor.author | TAKAHASHI, H. | |
dc.contributor.author | B. THAYER, J. | |
dc.contributor.author | J. THOMPSON, D. | |
dc.contributor.author | TIBALDO, L. | |
dc.contributor.author | TINIVELLA, M. | |
dc.contributor.author | F. TORRES, D. | |
dc.contributor.author | TOSTI, G. | |
dc.contributor.author | UCHIYAMA, Y. | |
dc.contributor.author | L. USHER, T. | |
dc.contributor.author | VANDENBROUCKE, J. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | VASILEIOU, V. | |
dc.contributor.author | VENTER, C. | |
dc.contributor.author | VIANELLO, G. | |
dc.contributor.author | VITALE, V. | |
dc.contributor.author | L. WINER, B. | |
dc.contributor.author | S. WOOD, K. | |
dc.date.issued | 2013 | |
dc.identifier.issn | 2041-8205 | |
dc.description.abstractEn | Long-term monitoring of PSR J2021+4026 in the heart of the Cygnus region with the Fermi Large Area Telescope unveiled a sudden decrease in flux above 100 MeV over a timescale shorter than a week. The "jump" was near MJD 55850 (2011 October 16), with the flux decreasing from (8.33 ± 0.08) × 10-10 erg cm-2 s-1 to (6.86 ± 0.13) × 10-10 erg cm-2 s-1. Simultaneously, the frequency spindown rate increased from (7.8 ± 0.1) × 10-13 Hz s-1 to (8.1 ± 0.1) × 10-13 Hz s-1. Significant (>5σ) changes in the pulse profile and marginal (<3σ) changes in the emission spectrum occurred at the same time. There is also evidence for a small, steady flux increase over the 3 yr preceding MJD 55850. This is the first observation at γ-ray energies of mode changes and intermittent behavior, observed at radio wavelengths for other pulsars. We argue that the change in pulsed γ-ray emission is due to a change in emission beaming and we speculate that it is precipitated by a shift in the magnetic field structure, leading to a change of either effective magnetic inclination or effective current. | |
dc.language.iso | en | |
dc.publisher | Bristol : IOP Publishing | |
dc.title.en | PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1088/2041-8205/777/1/L2 | |
dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
dc.identifier.arxiv | 1308.0358 | |
bordeaux.journal | The Astrophysical journal letters | |
bordeaux.page | L2 | |
bordeaux.volume | 777 | |
bordeaux.peerReviewed | oui | |
hal.identifier | in2p3-00915598 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Non spécifiée | |
hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00915598v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20journal%20letters&rft.date=2013&rft.volume=777&rft.spage=L2&rft.epage=L2&rft.eissn=2041-8205&rft.issn=2041-8205&rft.au=ALLAFORT,%20A.&BALDINI,%20Luca&BALLET,%20Jean&BARBIELLINI,%20Guido&BASTIERI,%20D.&rft.genre=article |
Fichier(s) constituant ce document
Fichiers | Taille | Format | Vue |
---|---|---|---|
Il n'y a pas de fichiers associés à ce document. |