Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope

A.A. Abdo; Markus Ackermann; Marco Ajello; W.B. Atwood; Luca Baldini; Jean Ballet; Guido Barbiellini; D. Bastieri; M. Battelino; B.M. Baughman; K. Bechtol; R. Bellazzini; B. Berenji; E.D. Bloom; G. Bogaert; A.W. Borgland; J. Bregeon; A. Brez; M. Brigida; Pascal Bruel; T.H. Burnett; G.A. Caliandro; R.A. Cameron; F. Camilo; P. A. Caraveo; J.M. Casandjian; C. Cecchi; E. Charles; A. Chekhtman; A.W. Chen; C.C. Cheung; J. Chiang; S. Ciprini; Ismaël Cognard; J. Cohen-Tanugi; L.R. Cominsky; J. Conrad; S. Cutini; P. Demorest; C.D. Dermer; A. de Angelis; A. de Luca; 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; W.B. Focke; M. Frailis; P.C. C. Freire; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Gehrels; S. Germani; B. Giebels; N. Giglietto; F. Giordano; T. Glanzman; G. Godfrey; I.A. Grenier; M.-H. Grondin; J. E. Grove; L. Guillemot; S. Guiriec; Y. Hanabata; A. K. Harding; M. Hayashida; E. Hays; R.E. Hughes; G. Johannesson; A.S. Johnson; R. P. Johnson; T.J. Johnson; W. N. Johnson; S. Johnston; T. Kamae; H. Katagiri; J. Kataoka; N. Kawai; M. Kerr; B. Kiziltan; Jürgen Knödlseder; N. Komin; M. Kramer; F. Kuehn; M. Kuss; J. Lande; L. Latronico; S.-H. Lee; M. Lemoine-Goumard; 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; M. A. Mclaughlin; 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; A. Noutsos; E. Nuss; T. Ohsugi; N. Omodei; E. Orlando; J. F. Ormes; M. Ozaki; D. Paneque; J. H. Panetta; D. Parent; M. Pepe; M. Pesce-Rollins; F. Piron; T.A. Porter; S. Raino; R. Rando; S. M. Ransom; M. Razzano; A. Reimer; O. Reimer; T. Reposeur; S. Ritz; L. S. Rochester; A. Y. Rodriguez; R. W. Romani; F. Ryde; H. F.-W. Sadrozinski; D. Sanchez; P. M. Saz Parkinson; C. Sgro; A. Sierpowska-Bartosik; 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. Tajima; H. Takahashi; T. Takahashi; T. Tanaka; J. B. Thayer; J. G. Thayer; Gilles Theureau; D. J. Thompson; S. E. Thorsett; L. Tibaldo; D. F. Torres; G. Tosti; A. Tramacere; Y. Uchiyama; T. L. Usher; A. van Etten; N. Vilchez; V. Vitale; A. P. Waite; E. Wallace; K. Watters; P. Weltevrede; K. S. Wood; T. Ylinen; M. Ziegler

doi:10.1088/0004-637X/700/2/1059

Journal Articles The Astrophysical Journal Year : 2009

Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope

Dermer 1 , A. de Angelis 28 , A. de Luca 29 , F. de Palma 13

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A.A. Abdo

Function : Author

Markus Ackermann

Function : Author

Marco Ajello

Function : Author

W.B. Atwood

Function : Author

Luca Baldini

Function : Author

Jean Ballet

Function : Author

Astrophysique Interprétation Modélisation

Guido Barbiellini

Function : Author

D. Bastieri

Function : Author

M. Battelino

Function : Author

B.M. Baughman

Function : Author

K. Bechtol

Function : Author

R. Bellazzini

Function : Author

B. Berenji

Function : Author

E.D. Bloom

Function : Author

G. Bogaert

Function : Author
PersonId : 458
IdHAL : gilles-bogaert
ORCID : 0000-0003-2507-3866
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Laboratoire Leprince-Ringuet

A.W. Borgland

Function : Author

J. Bregeon

Function : Author
PersonId : 741214
IdHAL : johan-bregeon
ORCID : 0000-0002-6790-5328
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A. Brez

Function : Author

M. Brigida

Function : Author

Pascal Bruel

Function : Author

Laboratoire Leprince-Ringuet

T.H. Burnett

Function : Author

G.A. Caliandro

Function : Author

R.A. Cameron

Function : Author

F. Camilo

Function : Author

P. A. Caraveo

Function : Author

J.M. Casandjian

Function : Author

Astrophysique Interprétation Modélisation

C. Cecchi

Function : Author

E. Charles

Function : Author

A. Chekhtman

Function : Author

A.W. Chen

Function : Author

C.C. Cheung

Function : Author

J. Chiang

Function : Author

S. Ciprini

Function : Author

Ismaël Cognard

Function : Author
PersonId : 749308
IdHAL : ismael-cognard
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Laboratoire de physique et chimie de l'environnement

J. Cohen-Tanugi

Function : Author
PersonId : 3626
IdHAL : johann-cohen-tanugi
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Laboratoire de Physique Théorique et Astroparticules

L.R. Cominsky

Function : Author

J. Conrad

Function : Author

S. Cutini

Function : Author

P. Demorest

Function : Author

C.D. Dermer

Function : Author

A. de Angelis

Function : Author

A. de Luca

Function : Author

F. de Palma

Function : Author

S.W. Digel

Function : Author

M. Dormody

Function : Author

E. Do Couto E Silva

Function : Author

P.S. Drell

Function : Author

R. Dubois

Function : Author

D. Dumora

Function : Author

Centre d'Etudes Nucléaires de Bordeaux Gradignan

C. Espinoza

Function : Author

C. Farnier

Function : Author

Laboratoire de Physique Théorique et Astroparticules

C. Favuzzi

Function : Author

W.B. Focke

Function : Author

M. Frailis

Function : Author

P.C. C. Freire

Function : Author

Y. Fukazawa

Function : Author
PersonId : 760581
ORCID : 0000-0002-0921-8837

S. Funk

Function : Author

P. Fusco

Function : Author

F. Gargano

Function : Author

D. Gasparrini

Function : Author

N. Gehrels

Function : Author

S. Germani

Function : Author

B. Giebels

Function : Author

Laboratoire Leprince-Ringuet

N. Giglietto

Function : Author
PersonId : 755413
ORCID : 0000-0002-9021-2888

F. Giordano

Function : Author

T. Glanzman

Function : Author

G. Godfrey

Function : Author

I.A. Grenier

Function : Author

Astrophysique Interprétation Modélisation

M.-H. Grondin

Function : Author
PersonId : 760583
ORCID : 0000-0002-8383-251X
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Centre d'Etudes Nucléaires de Bordeaux Gradignan

J. E. Grove

Function : Author

L. Guillemot

Function : Author

Centre d'Etudes Nucléaires de Bordeaux Gradignan

S. Guiriec

Function : Author

Laboratoire de Physique Théorique et Astroparticules

Y. Hanabata

Function : Author

A. K. Harding

Function : Author

M. Hayashida

Function : Author

E. Hays

Function : Author

R.E. Hughes

Function : Author

G. Johannesson

Function : Author

A.S. Johnson

Function : Author

R. P. Johnson

Function : Author

T.J. Johnson

Function : Author

W. N. Johnson

Function : Author

S. Johnston

Function : Author

T. Kamae

Function : Author

H. Katagiri

Function : Author

J. Kataoka

Function : Author

N. Kawai

Function : Author

M. Kerr

Function : Author

B. Kiziltan

Function : Author

Jürgen Knödlseder

Function : Author
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Centre d'étude spatiale des rayonnements

N. Komin

Function : Author

Astrophysique Interprétation Modélisation

Laboratoire de Physique Théorique et Astroparticules

M. Kramer

Function : Author

F. Kuehn

Function : Author

M. Kuss

Function : Author

J. Lande

Function : Author

L. Latronico

Function : Author

S.-H. Lee

Function : Author

M. Lemoine-Goumard

Function : Author
PersonId : 755595
ORCID : 0000-0002-4462-3686

Centre d'Etudes Nucléaires de Bordeaux Gradignan

F. Longo

Function : Author
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ORCID : 0000-0003-2501-2270

F. Loparco

Function : Author

B. Lott

Function : Author
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Centre d'Etudes Nucléaires de Bordeaux Gradignan

M.N. Lovellette

Function : Author

P. Lubrano

Function : Author

A.G. Lyne

Function : Author

A. Makeev

Function : Author

R.N. Manchester

Function : Author

M. Marelli

Function : Author

M.N. Mazziotta

Function : Author

W. Mcconville

Function : Author

J. E. Mcenery

Function : Author

M. A. Mclaughlin

Function : Author

C. Meurer

Function : Author

P. F. Michelson

Function : Author

W. Mitthumsiri

Function : Author

T. Mizuno

Function : Author

A. A. Moiseev

Function : Author

C. Monte

Function : Author

M. E. Monzani

Function : Author

A. Morselli

Function : Author

I. V. Moskalenko

Function : Author

S. Murgia

Function : Author

P. L. Nolan

Function : Author

A. Noutsos

Function : Author

E. Nuss

Function : Author

Laboratoire de Physique Théorique et Astroparticules

T. Ohsugi

Function : Author

N. Omodei

Function : Author

E. Orlando

Function : Author

J. F. Ormes

Function : Author

M. Ozaki

Function : Author
PersonId : 759061
ORCID : 0000-0002-1320-9781

D. Paneque

Function : Author
PersonId : 755279
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J. H. Panetta

Function : Author

D. Parent

Function : Author

Centre d'Etudes Nucléaires de Bordeaux Gradignan

M. Pepe

Function : Author

M. Pesce-Rollins

Function : Author
PersonId : 760585
ORCID : 0000-0003-1790-8018

F. Piron

Function : Author
PersonId : 172749
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ORCID : 0000-0001-6885-7156

Laboratoire de Physique Théorique et Astroparticules

T.A. Porter

Function : Author

S. Raino

Function : Author

R. Rando

Function : Author

S. M. Ransom

Function : Author

M. Razzano

Function : Author

A. Reimer

Function : Author
PersonId : 755465
ORCID : 0000-0001-8604-7077

O. Reimer

Function : Author

T. Reposeur

Function : Author
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Centre d'Etudes Nucléaires de Bordeaux Gradignan

S. Ritz

Function : Author

L. S. Rochester

Function : Author

A. Y. Rodriguez

Function : Author

R. W. Romani

Function : Author

F. Ryde

Function : Author

H. F.-W. Sadrozinski

Function : Author

D. Sanchez

Function : Author

Laboratoire Leprince-Ringuet

P. M. Saz Parkinson

Function : Author

C. Sgro

Function : Author

A. Sierpowska-Bartosik

Function : Author

E. J. Siskind

Function : Author

David Stanley Smith

Function : Author
PersonId : 866129

Centre d'Etudes Nucléaires de Bordeaux Gradignan

P. D. Smith

Function : Author

G. Spandre

Function : Author

P. Spinelli

Function : Author

B. W. Stappers

Function : Author

Jean-Luc Starck

Function : Author
PersonId : 858909

Astrophysique Interprétation Modélisation

M. S. Strickman

Function : Author

D. J. Suson

Function : Author

H. Tajima

Function : Author

H. Takahashi

Function : Author

T. Takahashi

Function : Author

T. Tanaka

Function : Author
PersonId : 756461
ORCID : 0000-0002-4383-0368

J. B. Thayer

Function : Author

J. G. Thayer

Function : Author

Gilles Theureau

Function : Author
PersonId : 1027088

Laboratoire de physique et chimie de l'environnement

D. J. Thompson

Function : Author

S. E. Thorsett

Function : Author

L. Tibaldo

Function : Author

D. F. Torres

Function : Author

G. Tosti

Function : Author

A. Tramacere

Function : Author

Y. Uchiyama

Function : Author

T. L. Usher

Function : Author

A. van Etten

Function : Author

N. Vilchez

Function : Author

Centre d'étude spatiale des rayonnements

V. Vitale

Function : Author
PersonId : 760184
ORCID : 0000-0001-8040-7852

A. P. Waite

Function : Author

E. Wallace

Function : Author

K. Watters

Function : Author

P. Weltevrede

Function : Author

K. S. Wood

Function : Author

T. Ylinen

Function : Author

M. Ziegler

Function : Author

Abstract

We report the detection of pulsed gamma-rays from the young, spin-powered radio pulsar PSR J2021+3651 using data acquired with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST). The light curve consists of two narrow peaks of similar amplitude separated by 0.468 +/- 0.002 in phase. The first peak lags the maximum of the 2 GHz radio pulse by 0.162 +/- 0.004 +/- 0.01 in phase. The integral gamma-ray photon flux above 100 MeV is (56 +/- 3 +/- 11) x 10^{-8} /cm2/s. The photon spectrum is well-described by an exponentially cut-off power law of the form dF/dE = kE^{-\Gamma} e^(-E/E_c) where the energy E is expressed in GeV. The photon index is \Gamma = 1.5 +/- 0.1 +/- 0.1 and the exponential cut-off is E_c = 2.4 +/- 0.3 +/- 0.5 GeV. The first uncertainty is statistical and the second is systematic. The integral photon flux of the bridge is approximately 10% of the pulsed emission, and the upper limit on off-pulse gamma-ray emission from a putative pulsar wind nebula is <10% of the pulsed emission at the 95% confidence level. Radio polarization measurements yield a rotation measure of RM = 524 +/- 4 rad/m^2 but a poorly constrained magnetic geometry. Re-analysis of Chandra data enhanced the significance of the weak X-ray pulsations, and the first peak is roughly phase-aligned with the first gamma-ray peak. We discuss the emission region and beaming geometry based on the shape and spectrum of the gamma-ray light curve combined with radio and X-ray measurements, and the implications for the pulsar distance. Gamma-ray emission from the polar cap region seems unlikely for this pulsar.

Domains

Physics [physics] Astrophysics [astro-ph] High Energy Astrophysical Phenomena [astro-ph.HE] Sciences of the Universe [physics] Astrophysics [astro-ph] High Energy Astrophysical Phenomena [astro-ph.HE] Physics [physics] Astrophysics [astro-ph] Galactic Astrophysics [astro-ph.GA] Sciences of the Universe [physics] Astrophysics [astro-ph] Galactic Astrophysics [astro-ph.GA]

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DOI : 10.1088/0004-637X/700/2/1059

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A.A. Abdo, Markus Ackermann, Marco Ajello, W.B. Atwood, Luca Baldini, et al.. Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope. The Astrophysical Journal, 2009, 700, pp.1059-1066. ⟨10.1088/0004-637X/700/2/1059⟩. ⟨in2p3-00394148⟩

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Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope

Dermer 1 , A. de Angelis 28 , A. de Luca 29 , F. de Palma 13

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