Discovery of Pulsed $\gamma$-rays from PSR J0034-0534 with the Fermi LAT: A Case for Co-located Radio and $\gamma$-ray Emission Regions

A. A. Abdo; Markus Ackermann; Marco Ajello; A. Allafort; Luca Baldini; Jean Ballet; Guido Barbiellini; D. Bastieri; K. Bechtol; R. Bellazzini; B. Berenji; R. D. Blandford; E. D. Bloom; E. Bonamente; A. W. Borgland; A. Bouvier; J. Bregeon; A. Brez; M. Brigida; Pascal Bruel; T. H. Burnett; S. Buson; G. A. Caliandro; R. A. Cameron; F. Camilo; P. A. Caraveo; S. Carrigan; J. M. Casandjian; C. Cecchi; O. Celik; A. Chekhtman; C. C. Cheung; J. Chiang; S. Ciprini; R. Claus; Ismaël Cognard; J. Cohen-Tanugi; J. Conrad; R. Corbet; M. E. Decesar; C. D. Dermer; G. Desvignes; A. de Angelis; F. de Palma; S. W. Digel; M. Dormody; E. Do Couto E Silva; P. S. Drell; R. Dubois; D. Dumora; C. Espinoza; C. Farnier; C. Favuzzi; S. J. Fegan; W. B. Focke; M. Frailis; P. C. C. Freire; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Gehrels; S. Germani; G. Giavitto; N. Giglietto; F. Giordano; T. Glanzman; G. Godfrey; I. A. Grenier; M.-H. Grondin; J. E. Grove; L. Guillemot; S. Guiriec; D. Hadasch; A. K. Harding; E. Hays; G. Hobbs; D. Horan; R. E. Hughes; G. Johannesson; A. S. Johnson; T. J. Johnson; W. N. Johnson; S. Johnston; T. Kamae; H. Katagiri; J. Kataoka; N. Kawai; M. Kerr; Jürgen Knödlseder; M. Kramer; M. Kuss; J. Lande; L. Latronico; M. Lemoine-Goumard; M. Llena Garde; F. Longo; F. Loparco; B. Lott; M. N. Lovellette; P. Lubrano; A. G. Lyne; A. Makeev; R. N. Manchester; M. Marelli; M. N. Mazziotta; W. Mcconville; J. E. Mcenery; S. Mcglynn; C. Meurer; P. F. Michelson; W. Mitthumsiri; T. Mizuno; A. A. Moiseev; C. Monte; M. E. Monzani; A. Morselli; I. V. Moskalenko; S. Murgia; P. L. Nolan; J. P. Norris; A. Noutsos; E. Nuss; T. Ohsugi; N. Omodei; E. Orlando; J. F. Ormes; M. Ozaki; D. Paneque; J. H. Panetta; D. Parent; V. Pelassa; M. Pepe; M. Pesce-Rollins; M. Pierbattista; F. Piron; T.A. Porter; S. Raino; R. Rando; S. M. Ransom; M. Razzano; A. Reimer; O. Reimer; T. Reposeur; J. Ripken; S. Ritz; L. S. Rochester; A. Y. Rodriguez; R. W. Romani; M. Roth; F. Ryde; H. F.-W. Sadrozinski; A. Sander; P. M. Saz Parkinson; J. D. Scargle; C. Sgro; E. J. Siskind; David Stanley Smith; P. D. Smith; G. Spandre; P. Spinelli; B. W. Stappers; Jean-Luc Starck; M. S. Strickman; D. J. Suson; H. Takahashi; T. Tanaka; J. B. Thayer; J. G. Thayer; G. Theureau; D. J. Thompson; S. E. Thorsett; L. Tibaldo; D. F. Torres; G. Tosti; A. Tramacere; T. L. Usher; A. van Etten; V. Vasileiou; C. Venter; N. Vilchez; V. Vitale; A. P. Waite; E. Wallace; P. Wang; P. Weltevrede; B. L. Winer; K. S. Wood; T. Ylinen; M. Ziegler

doi:10.1088/0004-637X/712/2/957

$Discovery of Pulsed $\gamma$-rays from PSR J0034-0534 with the Fermi LAT: A Case for Co-located Radio and $\gamma$-ray Emission Regions$

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Discovery of Pulsed $\gamma$-rays from PSR J0034-0534 with the Fermi LAT: A Case for Co-located Radio and $\gamma$-ray Emission Regions

A. A. Abdo, Markus Ackermann, Marco Ajello, A. Allafort, Luca Baldini, Jean Ballet, Guido Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, …

The Astrophysical Journal, Vol.712, pp.957-963

01/04/2010

DOI: https://doi.org/10.1088/0004-637X/712/2/957

Abstract

gamma rays: general

pulsars: general

pulsars: individual (PSR J0034−0534)

Millisecond pulsars (MSPs) have been firmly established as a class of gamma-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using thirteen months of LAT data significant gamma-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The gamma-ray light curve shows two peaks separated by 0.274$\pm$0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The $\geq$0.1 GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8$\pm 0.6\pm$0.1 GeV and a photon index of 1.5$\pm 0.2\pm$0.1, first errors are statistical and second are systematic. The near-alignment of the radio and gamma-ray peaks strongly suggests that the radio and gamma-ray emission regions are co-located and both are the result of caustic formation.

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Title: Discovery of Pulsed $\gamma$-rays from PSR J0034-0534 with the Fermi LAT: A Case for Co-located Radio and $\gamma$-ray Emission Regions
Creators - without role: A. A. Abdo
Markus Ackermann - Kavli Institute for Particle Astrophysics and Cosmology
Marco Ajello - Kavli Institute for Particle Astrophysics and Cosmology
A. Allafort - Kavli Institute for Particle Astrophysics and Cosmology
Luca Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Jean Ballet - Astrophysique, Instrumentation et Modélisation
Guido Barbiellini - University of Trieste
D. Bastieri - University of Padua
K. Bechtol - Kavli Institute for Particle Astrophysics and Cosmology
R. Bellazzini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
B. Berenji - Kavli Institute for Particle Astrophysics and Cosmology
R. D. Blandford
E. D. Bloom
E. Bonamente - University of Perugia
A. W. Borgland
A. Bouvier - Stanford University
J. Bregeon - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Brez - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Brigida - Polytechnic University of Bari
Pascal Bruel - École Polytechnique
T. H. Burnett
S. Buson - University of Padua
G. A. Caliandro
R. A. Cameron
F. Camilo - Columbia University
P. A. Caraveo - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
S. Carrigan - University of Padua
J. M. Casandjian - Astrophysique Interprétation Modélisation
C. Cecchi - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
O. Celik - Goddard Space Flight Center
A. Chekhtman - United States Naval Research Laboratory
C. C. Cheung
J. Chiang - Kavli Institute for Particle Astrophysics and Cosmology
S. Ciprini - University of Perugia
R. Claus - Kavli Institute for Particle Astrophysics and Cosmology
Ismaël Cognard - Centre National de la Recherche Scientifique
J. Cohen-Tanugi - Institut National de Physique Nucléaire et de Physique des Particules
J. Conrad - Stockholm University
R. Corbet - University of Maryland, Baltimore County
M. E. Decesar
C. D. Dermer
G. Desvignes - Centre National de la Recherche Scientifique
A. de Angelis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. de Palma - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
S. W. Digel
M. Dormody - University of California, Santa Cruz
E. Do Couto E Silva
P. S. Drell
R. Dubois - Kavli Institute for Particle Astrophysics and Cosmology
D. Dumora - Laboratoire de Physique des deux infinis Bordeaux
C. Espinoza - University of Manchester
C. Farnier - Laboratoire de Physique Théorique
C. Favuzzi - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
S. J. Fegan - Laboratoire Leprince-Ringuet
W. B. Focke
M. Frailis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
P. C. C. Freire
Y. Fukazawa - Hiroshima University
S. Funk - Kavli Institute for Particle Astrophysics and Cosmology
P. Fusco - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
F. Gargano - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
D. Gasparrini - Agenzia Spaziale Italiana
N. Gehrels - Goddard Space Flight Center
S. Germani - University of Perugia
G. Giavitto - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
N. Giglietto - Polytechnic University of Bari
F. Giordano - Polytechnic University of Bari
T. Glanzman - Kavli Institute for Particle Astrophysics and Cosmology
G. Godfrey - Kavli Institute for Particle Astrophysics and Cosmology
I. A. Grenier - Astrophysique Interprétation Modélisation
M.-H. Grondin - Centre National de la Recherche Scientifique
J. E. Grove
L. Guillemot - Université de Bordeaux
S. Guiriec - University of Alabama in Huntsville
D. Hadasch - Institució Catalana de Recerca i Estudis Avançats
A. K. Harding
E. Hays - Goddard Space Flight Center
G. Hobbs - Commonwealth Scientific and Industrial Research Organisation
D. Horan - Laboratoire Leprince-Ringuet
R. E. Hughes
G. Johannesson - Stanford University
A. S. Johnson
T. J. Johnson
W. N. Johnson
S. Johnston - Commonwealth Scientific and Industrial Research Organisation
T. Kamae - Kavli Institute for Particle Astrophysics and Cosmology
H. Katagiri - Hiroshima University
J. Kataoka - Waseda University
N. Kawai - RIKEN
M. Kerr - University of Washington
Jürgen Knödlseder - Centre National d'Études Spatiales
M. Kramer - University of Manchester
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
J. Lande - Kavli Institute for Particle Astrophysics and Cosmology
L. Latronico - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
M. Llena Garde
F. Longo - University of Trieste
F. Loparco - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
B. Lott - Laboratoire de Physique des deux infinis Bordeaux
M. N. Lovellette
P. Lubrano - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
A. G. Lyne
A. Makeev - United States Naval Research Laboratory
R. N. Manchester
M. Marelli - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
M. N. Mazziotta
W. Mcconville - Goddard Space Flight Center
J. E. Mcenery
S. Mcglynn - KTH Royal Institute of Technology
C. Meurer - AlbaNova
P. F. Michelson
W. Mitthumsiri - Stanford University
T. Mizuno - Hiroshima University
A. A. Moiseev
C. Monte - Polytechnic University of Bari
M. E. Monzani
A. Morselli - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
I. V. Moskalenko
S. Murgia - Kavli Institute for Particle Astrophysics and Cosmology
P. L. Nolan
J. P. Norris
A. Noutsos - University of Manchester
E. Nuss - Laboratoire de Physique Théorique
T. Ohsugi - Hiroshima University
N. Omodei - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Orlando - Max Planck Institute for Extraterrestrial Physics
J. F. Ormes
M. Ozaki - Institute of Space and Astronautical Science
D. Paneque - Kavli Institute for Particle Astrophysics and Cosmology
J. H. Panetta
D. Parent - Laboratoire de Physique des deux infinis Bordeaux
V. Pelassa - Institut National de Physique Nucléaire et de Physique des Particules
M. Pepe - University of Perugia
M. Pesce-Rollins - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Pierbattista - Astrophysique, Instrumentation et Modélisation
F. Piron - Institut National de Physique Nucléaire et de Physique des Particules
T.A. Porter - University of California, Santa Cruz
S. Raino - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R. Rando - University of Padua
S. M. Ransom
M. Razzano - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Reimer - Universität Innsbruck
O. Reimer - Stanford University
T. Reposeur - Laboratoire de Physique des deux infinis Bordeaux
J. Ripken - AlbaNova
S. Ritz - University of California, Santa Cruz
L. S. Rochester
A. Y. Rodriguez
R. W. Romani
M. Roth - University of Washington
F. Ryde - AlbaNova
H. F.-W. Sadrozinski
A. Sander - The Ohio State University
P. M. Saz Parkinson
J. D. Scargle - Astrophysique Interprétation Modélisation
C. Sgro - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. J. Siskind
David Stanley Smith - Laboratoire de Physique des deux infinis Bordeaux
P. D. Smith
G. Spandre - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
B. W. Stappers
Jean-Luc Starck - Astrophysique Interprétation Modélisation
M. S. Strickman
D. J. Suson
H. Takahashi - Hiroshima University
T. Tanaka - SLAC National Accelerator Laboratory
J. B. Thayer
J. G. Thayer
G. Theureau - Centre National de la Recherche Scientifique
D. J. Thompson
S. E. Thorsett
L. Tibaldo - CEA Paris-Saclay
D. F. Torres
G. Tosti - University of Perugia
A. Tramacere - Consorzio Interuniversitario Fisica Spaziale
T. L. Usher
A. van Etten - Kavli Institute for Particle Astrophysics and Cosmology
V. Vasileiou - University of Maryland, Baltimore County
C. Venter - North-West University
N. Vilchez - Université Toulouse III - Paul Sabatier
V. Vitale - University of Rome Tor Vergata
A. P. Waite
E. Wallace - University of Washington
P. Wang - Kavli Institute for Particle Astrophysics and Cosmology
P. Weltevrede - University of Manchester
B. L. Winer
K. S. Wood
T. Ylinen - Fraunhofer Chalmers Research Centre for Industrial Mathematics
M. Ziegler - University of California, Santa Cruz
Publication Details: The Astrophysical Journal, Vol.712, pp.957-963
Identifiers: 9934183809311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00475596