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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Discovery of high-energy gamma-ray emission from the binary system PSR B1259-63/LS 2883 around periastron with Fermi
Astrophysical Journal Letters, Volume 736, No. 1, Article L11, Year 2011
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Description
We report on the discovery of ≥100MeV γ-rays from the binary system PSR B1259-63/LS 2883 using the Large Area Telescope (LAT) on board Fermi. The system comprises a radio pulsar in orbit around a Be star. We report on LAT observations from near apastron to ∼128 days after the time of periastron, ∼tp , on 2010 December 15. No γ-ray emission was detected from this source when it was far from periastron. Faint γ-ray emission appeared as the pulsar approached periastron. At ∼tp + 30 days, the ≥100MeV γ-ray flux increased over a period of a few days to a peak flux 20-30 times that seen during the pre-periastron period, but with a softer spectrum. For the following month, it was seen to be variable on daily timescales, but remained at ∼(1-4) × 10-6 cm-2 s-1 before starting to fade at ∼tp + 57 days. The total γ-ray luminosity observed during this period is comparable to the spin-down power of the pulsar. Simultaneous radio and X-ray observations of the source showed no corresponding dramatic changes in radio and X-ray flux between the pre-periastron and post-periastron flares. We discuss possible explanations for the observed γ-ray-only flaring of the source. © 2011. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Abdo, Aous A.
United States, Fairfax
George Mason University
United States, Washington, D.c.
U.s. Naval Research Laboratory
Ackermann, Markus
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Ajello, Marco
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Allafort, Alice J.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Ballet, Jean
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Barbiellini, Guido
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
Bastieri, D.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Bechtol, Keith C.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Bellazzini, Ronaldo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Berenji, B.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Blandford, Rogerd D.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Bonamente, Emanuele
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Borgland, Anders W.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Bregeon, Johan
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Brigida, Monica
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Bruel, Philippe V.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Buehler, Rolf
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Buson, Sara
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Caliandro, Giuseppe Andrea
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Cameron, Robert A.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Camilo, Fernando
United States, New York
Columbia University
Caraveo, Patrizia A.
Italy, Milan
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Milan
Cecchi, Claudia
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Charles, Eric
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Chaty, Sylvain
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Chekhtman, Alexandre
United States, Washington, D.c.
U.s. Naval Research Laboratory
Chernyakova, Maria
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Cheung, Chi C.Teddy
United States, Washington, D.c.
National Academy of Sciences
United States, Washington, D.c.
U.s. Naval Research Laboratory
Chiang, James
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Ciprini, Stefano
Italy, Perugia
Università Degli Studi Di Perugia
Claus, Richard
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Cohen-Tanugi, Johann
France, Montpellier
Université de Montpellier
Cominsky, Lynn R.
United States, Rohnert Park
Sonoma State University
Corbel, Stéphane
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
France, Paris
Institut Universitaire de France
Cutini, S.
Italy, Rome
Agenzia Spaziale Italiana
D'Ammando, Filippo
Italy, Palermo
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica Di Palermo
Italy, Rome
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Rome
De Angelis, Alessandro D.
Italy, Udine
Università Degli Studi Di Udine
den Hartog, Peter R.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
de Palma, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Dermer, Charles Dennison
United States, Washington, D.c.
U.s. Naval Research Laboratory
Digel, Seth W.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
do Couto E Silva, Eduardo
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Drell, Persis S.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Drlica-Wagner, Alex
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Dubois, Richard
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Dubus, Guillaume
France, Paris
Insu - Institut National Des Sciences de L'univers
Dumora, Denis
France, Bordeaux
Université de Bordeaux
Enoto, Teruaki
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Espinoza, Cristóbal M.
United Kingdom, Manchester
The University of Manchester
Favuzzi, Cecilia
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Fegan, Stephen J.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Ferrara, Elizabeth C.
United States, Greenbelt
Nasa Goddard Space Flight Center
Focke, Warren B.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Fortin, Pascal
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Fukazawa, Yasushi
Japan, Higashihiroshima
Hiroshima University
Funk, Stefan
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Fusco, Piergiorgio G.
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gargano, Fabio
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gasparrini, Dario
Italy, Rome
Agenzia Spaziale Italiana
Gehrels, Neil C.
United States, Greenbelt
Nasa Goddard Space Flight Center
Germani, Stefano
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Giglietto, Nicola
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Giommi, Paolo
Italy, Rome
Agenzia Spaziale Italiana
Giordano, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Giroletti, Marcello
Italy, Bologna
Istituto Di Radioastronomia, Bologna
Glanzman, Thomas
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Godfrey, Gary L.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Grenier, Isabelle A.
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Grondin, Marie Hélène
Germany, Tubingen
Eberhard Karls Universität Tübingen
Grove, J. Eric
United States, Washington, D.c.
U.s. Naval Research Laboratory
Guiriec, Sylvain
United States, Huntsville
The University of Alabama in Huntsville
Hadasch, Daniela
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Harding, Alice K.
United States, Greenbelt
Nasa Goddard Space Flight Center
Hayashida, Masaaki
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Hays, Elizabeth A.
United States, Greenbelt
Nasa Goddard Space Flight Center
Jóhannesson, Gudlaugur
Iceland, Reykjavik
Haskoli Islands
Johnson, Anthony S.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Johnson, Tyrel J.
United States, Greenbelt
Nasa Goddard Space Flight Center
United States, College Park
University of Maryland, College Park
Johnston, Simon
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Kamae, Tsuneyoshi
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Katagiri, Hideaki
Japan, Higashihiroshima
Hiroshima University
Kataoka, Jun
Japan, Tokyo
Waseda University
Keith, Michael J.
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Kerr, Matthew T.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Kn̈odlseder, Jürgen
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
Kramer, Michael
United Kingdom, Manchester
The University of Manchester
Germany, Bonn
Max Planck Institute for Radio Astronomy
Kuss, Michael W.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Lande, Joshua
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Lemoine-Goumard, Marianne
France, Bordeaux
Université de Bordeaux
Longo, Francesco
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
Loparco, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Lovellette, Michael N.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Lubrano, Pasquale
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Manchester, Richard N.
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Mazziotta, Mario Nicola
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Michelson, Peter F.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Mitthumsiri, Warit
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Mizuno, Tsunefumi
Japan, Higashihiroshima
Hiroshima University
Moiseev, A. V.
United States, College Park
University of Maryland, College Park
United States, Greenbelt
Nasa Goddard Space Flight Center
Monzani, Maria Elena
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Morselli, Aldo
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Moskalenko, Igor V.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Murgia, Simona
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Nakamori, Takeshi
Japan, Tokyo
Waseda University
Naumann-Godó, Melitta
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Neronov, Andrii Yu
Switzerland, Geneva
Université de Genève
Nolan, Patrick L.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Noutsos, Aristeidis
Germany, Bonn
Max Planck Institute for Radio Astronomy
Nuss, Eric
France, Montpellier
Université de Montpellier
Ohsugi, Takashi
Japan, Higashihiroshima
Hiroshima University
Omodei, Nicola
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Orlando, E.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Paneque, David
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Parent, Damien
United States, Fairfax
George Mason University
Pesce-Rollins, Melissa
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Piron, Frédéric
France, Montpellier
Université de Montpellier
Porter, Troy A.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Possenti, Andrea
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Rainó, Silvia
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Rando, Riccardo
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Ray, Paul S.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Razzano, Massimiliano
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Razzaque, Soebur
United States, Fairfax
George Mason University
Reimer, Anita
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Austria, Innsbruck
Universität Innsbruck
Reimer, Olaf
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Austria, Innsbruck
Universität Innsbruck
Reposeur, Thierry
France, Bordeaux
Université de Bordeaux
Ritz, Steven
United States, Santa Cruz
University of California, Santa Cruz
Sadrozinski, Hartmut F.W.
United States, Santa Cruz
University of California, Santa Cruz
Scargle, Jefferey D.
United States, Moffett Field
Nasa Ames Research Center
Sgro', Carmelo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Shannon, R. M.
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Siskind, Eric J.
United States, Rocky Point
Nycb Realtime Computing Inc.
Spandre, G.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Spinelli, Paolo
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Strickman, Mark S.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Suson, Daniel J.
United States, Westville
Purdue University Northwest
Takahashi, Hiromitsu
Japan, Higashihiroshima
Hiroshima University
Thayer, Jana B.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Thompson, David J.
United States, Greenbelt
Nasa Goddard Space Flight Center
Thorsett, Stephen E.
United States, Santa Cruz
University of California, Santa Cruz
Tibaldo, Luigi
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Tibolla, Omar
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Torres, Diego F.
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Tosti, Gino
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Troja, Eleonora
United States, Greenbelt
Nasa Goddard Space Flight Center
Uchiyama, Yasunobu
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Usher, Tracy L.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Vandenbroucke, Justin A.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Vianello, Giacomo
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Vitale, V.
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Waite, A. P.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Wolff, Michael Th
United States, Washington, D.c.
U.s. Naval Research Laboratory
Wood, Kent S.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Zimmer, Stephan
Sweden, Stockholm
Stockholms Universitet
Sweden, Stockholm
Oskar Klein Centre
Statistics
Citations: 143
Authors: 154
Affiliations: 59
Identifiers
Doi:
10.1088/2041-8205/736/1/L11
ISSN:
20418213
Research Areas
Environmental