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PULSED GAMMA RAYS FROM THE ORIGINAL MILLISECOND AND BLACK WIDOW PULSARS: A CASE FOR CAUSTIC RADIO EMISSION?

Identifieur interne : 006C62 ( Main/Merge ); précédent : 006C61; suivant : 006C63

PULSED GAMMA RAYS FROM THE ORIGINAL MILLISECOND AND BLACK WIDOW PULSARS: A CASE FOR CAUSTIC RADIO EMISSION?

Auteurs : L. Guillemot [Allemagne] ; T. J. Johnson [États-Unis] ; C. Venter [Afrique du Sud] ; M. Kerr [États-Unis] ; B. Pancrazi [France] ; M. Livingstone [Canada] ; G. H. Janssen [Royaume-Uni] ; P. Jaroenjittichai [Royaume-Uni] ; M. Kramer [Allemagne, Royaume-Uni] ; I. Cognard [France] ; B. W. Stappers [Royaume-Uni] ; A. K. Harding [États-Unis] ; F. Camilo [États-Unis] ; C. M. Espinoza [Royaume-Uni] ; P. C. C. Freire [Allemagne] ; F. Gargano [Italie] ; J. E. Grove [États-Unis] ; S. Johnston [Australie] ; P. F. Michelson [États-Unis] ; A. Noutsos [Allemagne] ; D. Parent [États-Unis] ; S. M. Ransom [États-Unis] ; P. S. Ray [États-Unis] ; R. Shannon [Australie] ; D. A. Smith [France] ; G. Theureaui [France] ; S. E. Thorsett [États-Unis] ; N. Webb [France]

Source :

RBID : Pascal:12-0085848

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English descriptors

Abstract

We report the detection of pulsed gamma-ray emission from the fast millisecond pulsars (MSPs) B1937+21 (also known as J 1939+2134) and B 1957+20 (J 1959+2048) using 18 months of survey data recorded by the Fermi Large Area Telescope and timing solutions based on radio observations conducted at the Westerbork and Nançay radio telescopes. In addition, we analyzed archival Rossi X-ray Timing Explorer and XMM-Newton X-ray data for the two MSPs, confirming the X-ray emission properties of PSR B1937+21 and finding evidence (∼4σ) for pulsed emission from PSR B 1957+20 for the first time. In both cases the gamma-ray emission profile is characterized by two peaks separated by half a rotation and are in close alignment with components observed in radio and X-rays. These two pulsars join PSRs J0034-0534 and J2214+3000 to form an emerging class of gamma-ray MSPs with phase-aligned peaks in different energy bands. The modeling of the radio and gamma-ray emission profiles suggests co-located emission regions in the outer magnetosphere.

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Pascal:12-0085848

Le document en format XML

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<s1>Department of Physics, Willamette University</s1>
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<region type="region">Occitanie (région administrative)</region>
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<title xml:lang="en" level="a">PULSED GAMMA RAYS FROM THE ORIGINAL MILLISECOND AND BLACK WIDOW PULSARS: A CASE FOR CAUSTIC RADIO EMISSION?</title>
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<name sortKey="Guillemot, L" sort="Guillemot, L" uniqKey="Guillemot L" first="L." last="Guillemot">L. Guillemot</name>
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<sZ>15 aut.</sZ>
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</inist:fA14>
<country>Allemagne</country>
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<region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District de Cologne</region>
<settlement type="city">Bonn</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Johnson, T J" sort="Johnson, T J" uniqKey="Johnson T" first="T. J." last="Johnson">T. J. Johnson</name>
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<s1>NASA Goddard Space Flight Center</s1>
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<wicri:noRegion>NASA Goddard Space Flight Center</wicri:noRegion>
</affiliation>
<affiliation wicri:level="4">
<inist:fA14 i1="03">
<s1>Department of Physics and Department of Astronomy, University of Maryland</s1>
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</placeName>
<orgName type="university">Université du Maryland</orgName>
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<s1>National Research Council Research Associate, National Academy of Sciences</s1>
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<wicri:noRegion>Washington, DC 20001</wicri:noRegion>
</affiliation>
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<name sortKey="Venter, C" sort="Venter, C" uniqKey="Venter C" first="C." last="Venter">C. Venter</name>
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<s1>Centre for Space Research, North-West University, Potchefstroom Campus</s1>
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<country>Afrique du Sud</country>
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<s1>W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University</s1>
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<country>France</country>
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<region type="region">Occitanie (région administrative)</region>
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<s1>Department of Physics, McGill University</s1>
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</inist:fA14>
<country>Canada</country>
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<settlement type="city">Montréal</settlement>
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<orgName type="university">Université McGill</orgName>
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<s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1>
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<settlement type="city">Manchester</settlement>
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<orgName type="university">Université de Manchester</orgName>
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<name sortKey="Jaroenjittichai, P" sort="Jaroenjittichai, P" uniqKey="Jaroenjittichai P" first="P." last="Jaroenjittichai">P. Jaroenjittichai</name>
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<s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1>
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<settlement type="city">Manchester</settlement>
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<orgName type="university">Université de Manchester</orgName>
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<name sortKey="Kramer, M" sort="Kramer, M" uniqKey="Kramer M" first="M." last="Kramer">M. Kramer</name>
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<s1>Max-Planck-Institut für Radioastronomie</s1>
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<sZ>15 aut.</sZ>
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<country>Allemagne</country>
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<region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
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<affiliation wicri:level="4">
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<s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1>
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<settlement type="city">Manchester</settlement>
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<name sortKey="Cognard, I" sort="Cognard, I" uniqKey="Cognard I" first="I." last="Cognard">I. Cognard</name>
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<country>France</country>
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<region type="region" nuts="2">Centre-Val de Loire</region>
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<s1>Station de radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU</s1>
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<sZ>10 aut.</sZ>
<sZ>26 aut.</sZ>
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<country>France</country>
<placeName>
<region type="region" nuts="2">Centre-Val de Loire</region>
<region type="old region" nuts="2">Région Centre</region>
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<name sortKey="Stappers, B W" sort="Stappers, B W" uniqKey="Stappers B" first="B. W." last="Stappers">B. W. Stappers</name>
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<s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1>
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<sZ>8 aut.</sZ>
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<country>Royaume-Uni</country>
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<settlement type="city">Manchester</settlement>
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<orgName type="university">Université de Manchester</orgName>
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<name sortKey="Harding, A K" sort="Harding, A K" uniqKey="Harding A" first="A. K." last="Harding">A. K. Harding</name>
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<s1>NASA Goddard Space Flight Center</s1>
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<country>États-Unis</country>
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<author>
<name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name>
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<s1>Columbia Astrophysics Laboratory, Columbia University</s1>
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</inist:fA14>
<country>États-Unis</country>
<placeName>
<settlement type="city">New York</settlement>
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<orgName type="university">Université Columbia</orgName>
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<name sortKey="Espinoza, C M" sort="Espinoza, C M" uniqKey="Espinoza C" first="C. M." last="Espinoza">C. M. Espinoza</name>
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<s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1>
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<sZ>8 aut.</sZ>
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</inist:fA14>
<country>Royaume-Uni</country>
<placeName>
<settlement type="city">Manchester</settlement>
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</placeName>
<orgName type="university">Université de Manchester</orgName>
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<name sortKey="Freire, P C C" sort="Freire, P C C" uniqKey="Freire P" first="P. C. C." last="Freire">P. C. C. Freire</name>
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<s1>Max-Planck-Institut für Radioastronomie</s1>
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<sZ>15 aut.</sZ>
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</inist:fA14>
<country>Allemagne</country>
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<region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
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<name sortKey="Gargano, F" sort="Gargano, F" uniqKey="Gargano F" first="F." last="Gargano">F. Gargano</name>
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<s1>Istituto Nazionale di Fisica Nucleate, Sezione di Bari</s1>
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</inist:fA14>
<country>Italie</country>
<wicri:noRegion>70126 Bari</wicri:noRegion>
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<name sortKey="Grove, J E" sort="Grove, J E" uniqKey="Grove J" first="J. E." last="Grove">J. E. Grove</name>
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<s1>Space Science Division, Naval Research Laboratory</s1>
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</inist:fA14>
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<author>
<name sortKey="Johnston, S" sort="Johnston, S" uniqKey="Johnston S" first="S." last="Johnston">S. Johnston</name>
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<s1>CSIRO Astronomy and Space Science, Australia Telescope National Facility</s1>
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</inist:fA14>
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<name sortKey="Michelson, P F" sort="Michelson, P F" uniqKey="Michelson P" first="P. F." last="Michelson">P. F. Michelson</name>
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<s1>W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University</s1>
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<name sortKey="Noutsos, A" sort="Noutsos, A" uniqKey="Noutsos A" first="A." last="Noutsos">A. Noutsos</name>
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<s1>Max-Planck-Institut für Radioastronomie</s1>
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<sZ>15 aut.</sZ>
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<country>Allemagne</country>
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<region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
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<name sortKey="Parent, D" sort="Parent, D" uniqKey="Parent D" first="D." last="Parent">D. Parent</name>
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<s1>Center for Earth Observing and Space Research, College of Science, George Mason University</s1>
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<country>États-Unis</country>
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<name sortKey="Ransom, S M" sort="Ransom, S M" uniqKey="Ransom S" first="S. M." last="Ransom">S. M. Ransom</name>
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<s1>National Radio Astronomy Observatory (NRAO)</s1>
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<sZ>22 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>National Radio Astronomy Observatory (NRAO)</wicri:noRegion>
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<author>
<name sortKey="Ray, P S" sort="Ray, P S" uniqKey="Ray P" first="P. S." last="Ray">P. S. Ray</name>
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<s1>Space Science Division, Naval Research Laboratory</s1>
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<name sortKey="Shannon, R" sort="Shannon, R" uniqKey="Shannon R" first="R." last="Shannon">R. Shannon</name>
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<s1>CSIRO Astronomy and Space Science, Australia Telescope National Facility</s1>
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<sZ>18 aut.</sZ>
<sZ>24 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>Epping NSW 1710</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Smith, D A" sort="Smith, D A" uniqKey="Smith D" first="D. A." last="Smith">D. A. Smith</name>
<affiliation wicri:level="1">
<inist:fA14 i1="19">
<s1>Centre d'Études Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1>
<s2>33175 Gradignan</s2>
<s3>FRA</s3>
<sZ>25 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>33175 Gradignan</wicri:noRegion>
<wicri:noRegion>CNRS/IN2p3</wicri:noRegion>
<wicri:noRegion>33175 Gradignan</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Theureaui, G" sort="Theureaui, G" uniqKey="Theureaui G" first="G." last="Theureaui">G. Theureaui</name>
<affiliation wicri:level="1">
<inist:fA14 i1="11">
<s1>Laboratoire de Physique et Chimie de l'Environnement, LPCE UMR 6115 CNRS</s1>
<s2>45071 Orléans</s2>
<s3>FRA</s3>
<sZ>10 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>45071 Orléans</wicri:noRegion>
<wicri:noRegion>LPCE UMR 6115 CNRS</wicri:noRegion>
<wicri:noRegion>45071 Orléans</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="12">
<s1>Station de radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU</s1>
<s2>18330 Nançay</s2>
<s3>FRA</s3>
<sZ>10 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>18330 Nançay</wicri:noRegion>
<wicri:noRegion>CNRS/INSU</wicri:noRegion>
<wicri:noRegion>18330 Nançay</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Thorsett, S E" sort="Thorsett, S E" uniqKey="Thorsett S" first="S. E." last="Thorsett">S. E. Thorsett</name>
<affiliation wicri:level="1">
<inist:fA14 i1="20">
<s1>Department of Physics, Willamette University</s1>
<s2>Salem, OR 97031</s2>
<s3>USA</s3>
<sZ>27 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Salem, OR 97031</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Webb, N" sort="Webb, N" uniqKey="Webb N" first="N." last="Webb">N. Webb</name>
<affiliation wicri:level="1">
<inist:fA14 i1="07">
<s1>CNRS, IRAP</s1>
<s2>31028 Toulouse</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>31028 Toulouse</wicri:noRegion>
<placeName>
<settlement type="city">Toulouse</settlement>
<region type="region" nuts="2">Occitanie (région administrative)</region>
<region type="old region" nuts="2">Midi-Pyrénées</region>
</placeName>
</affiliation>
<affiliation wicri:level="3">
<inist:fA14 i1="08">
<s1>GAHEC, Université de Toulouse, UPS-OMP, IRAP</s1>
<s2>Toulouse</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName>
<region type="region">Occitanie (région administrative)</region>
<region type="old region">Midi-Pyrénées</region>
<settlement type="city">Toulouse</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series>
<title level="j" type="main">The Astrophysical journal</title>
<title level="j" type="abbreviated">Astrophys. j.</title>
<idno type="ISSN">0004-637X</idno>
<imprint>
<date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<title level="j" type="main">The Astrophysical journal</title>
<title level="j" type="abbreviated">Astrophys. j.</title>
<idno type="ISSN">0004-637X</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Alignment</term>
<term>Gamma emission</term>
<term>Gamma radiation</term>
<term>Line shape</term>
<term>Millisecond pulsar</term>
<term>Modelling</term>
<term>RXTE satellite</term>
<term>Radiation mechanism</term>
<term>Radio emission</term>
<term>Radio observation</term>
<term>Timing</term>
<term>X ray emission</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Rayonnement gamma</term>
<term>Pulsar milliseconde</term>
<term>Emission radioélectrique</term>
<term>Emission gamma</term>
<term>Timing</term>
<term>Observation radio</term>
<term>Satellite RXTE</term>
<term>Emission RX</term>
<term>Profil raie</term>
<term>Alignement</term>
<term>Modélisation</term>
<term>Mécanisme rayonnement</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">We report the detection of pulsed gamma-ray emission from the fast millisecond pulsars (MSPs) B1937+21 (also known as J 1939+2134) and B 1957+20 (J 1959+2048) using 18 months of survey data recorded by the Fermi Large Area Telescope and timing solutions based on radio observations conducted at the Westerbork and Nançay radio telescopes. In addition, we analyzed archival Rossi X-ray Timing Explorer and XMM-Newton X-ray data for the two MSPs, confirming the X-ray emission properties of PSR B1937+21 and finding evidence (∼4σ) for pulsed emission from PSR B 1957+20 for the first time. In both cases the gamma-ray emission profile is characterized by two peaks separated by half a rotation and are in close alignment with components observed in radio and X-rays. These two pulsars join PSRs J0034-0534 and J2214+3000 to form an emerging class of gamma-ray MSPs with phase-aligned peaks in different energy bands. The modeling of the radio and gamma-ray emission profiles suggests co-located emission regions in the outer magnetosphere.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Afrique du Sud</li>
<li>Allemagne</li>
<li>Australie</li>
<li>Canada</li>
<li>France</li>
<li>Italie</li>
<li>Royaume-Uni</li>
<li>États-Unis</li>
</country>
<region>
<li>Angleterre</li>
<li>Centre-Val de Loire</li>
<li>District de Cologne</li>
<li>Grand Manchester</li>
<li>Maryland</li>
<li>Midi-Pyrénées</li>
<li>Occitanie (région administrative)</li>
<li>Québec</li>
<li>Rhénanie-du-Nord-Westphalie</li>
<li>Région Centre</li>
<li>État de New York</li>
</region>
<settlement>
<li>Bonn</li>
<li>College Park (Maryland)</li>
<li>Manchester</li>
<li>Montréal</li>
<li>Nançay</li>
<li>New York</li>
<li>Orléans</li>
<li>Toulouse</li>
</settlement>
<orgName>
<li>Université Columbia</li>
<li>Université McGill</li>
<li>Université de Manchester</li>
<li>Université du Maryland</li>
</orgName>
</list>
<tree>
<country name="Allemagne">
<region name="Rhénanie-du-Nord-Westphalie">
<name sortKey="Guillemot, L" sort="Guillemot, L" uniqKey="Guillemot L" first="L." last="Guillemot">L. Guillemot</name>
</region>
<name sortKey="Freire, P C C" sort="Freire, P C C" uniqKey="Freire P" first="P. C. C." last="Freire">P. C. C. Freire</name>
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<name sortKey="Noutsos, A" sort="Noutsos, A" uniqKey="Noutsos A" first="A." last="Noutsos">A. Noutsos</name>
</country>
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<name sortKey="Johnson, T J" sort="Johnson, T J" uniqKey="Johnson T" first="T. J." last="Johnson">T. J. Johnson</name>
</noRegion>
<name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name>
<name sortKey="Grove, J E" sort="Grove, J E" uniqKey="Grove J" first="J. E." last="Grove">J. E. Grove</name>
<name sortKey="Harding, A K" sort="Harding, A K" uniqKey="Harding A" first="A. K." last="Harding">A. K. Harding</name>
<name sortKey="Johnson, T J" sort="Johnson, T J" uniqKey="Johnson T" first="T. J." last="Johnson">T. J. Johnson</name>
<name sortKey="Johnson, T J" sort="Johnson, T J" uniqKey="Johnson T" first="T. J." last="Johnson">T. J. Johnson</name>
<name sortKey="Kerr, M" sort="Kerr, M" uniqKey="Kerr M" first="M." last="Kerr">M. Kerr</name>
<name sortKey="Michelson, P F" sort="Michelson, P F" uniqKey="Michelson P" first="P. F." last="Michelson">P. F. Michelson</name>
<name sortKey="Parent, D" sort="Parent, D" uniqKey="Parent D" first="D." last="Parent">D. Parent</name>
<name sortKey="Ransom, S M" sort="Ransom, S M" uniqKey="Ransom S" first="S. M." last="Ransom">S. M. Ransom</name>
<name sortKey="Ray, P S" sort="Ray, P S" uniqKey="Ray P" first="P. S." last="Ray">P. S. Ray</name>
<name sortKey="Thorsett, S E" sort="Thorsett, S E" uniqKey="Thorsett S" first="S. E." last="Thorsett">S. E. Thorsett</name>
</country>
<country name="Afrique du Sud">
<noRegion>
<name sortKey="Venter, C" sort="Venter, C" uniqKey="Venter C" first="C." last="Venter">C. Venter</name>
</noRegion>
</country>
<country name="France">
<region name="Occitanie (région administrative)">
<name sortKey="Pancrazi, B" sort="Pancrazi, B" uniqKey="Pancrazi B" first="B." last="Pancrazi">B. Pancrazi</name>
</region>
<name sortKey="Cognard, I" sort="Cognard, I" uniqKey="Cognard I" first="I." last="Cognard">I. Cognard</name>
<name sortKey="Cognard, I" sort="Cognard, I" uniqKey="Cognard I" first="I." last="Cognard">I. Cognard</name>
<name sortKey="Pancrazi, B" sort="Pancrazi, B" uniqKey="Pancrazi B" first="B." last="Pancrazi">B. Pancrazi</name>
<name sortKey="Smith, D A" sort="Smith, D A" uniqKey="Smith D" first="D. A." last="Smith">D. A. Smith</name>
<name sortKey="Theureaui, G" sort="Theureaui, G" uniqKey="Theureaui G" first="G." last="Theureaui">G. Theureaui</name>
<name sortKey="Theureaui, G" sort="Theureaui, G" uniqKey="Theureaui G" first="G." last="Theureaui">G. Theureaui</name>
<name sortKey="Webb, N" sort="Webb, N" uniqKey="Webb N" first="N." last="Webb">N. Webb</name>
<name sortKey="Webb, N" sort="Webb, N" uniqKey="Webb N" first="N." last="Webb">N. Webb</name>
</country>
<country name="Canada">
<region name="Québec">
<name sortKey="Livingstone, M" sort="Livingstone, M" uniqKey="Livingstone M" first="M." last="Livingstone">M. Livingstone</name>
</region>
</country>
<country name="Royaume-Uni">
<region name="Angleterre">
<name sortKey="Janssen, G H" sort="Janssen, G H" uniqKey="Janssen G" first="G. H." last="Janssen">G. H. Janssen</name>
</region>
<name sortKey="Espinoza, C M" sort="Espinoza, C M" uniqKey="Espinoza C" first="C. M." last="Espinoza">C. M. Espinoza</name>
<name sortKey="Jaroenjittichai, P" sort="Jaroenjittichai, P" uniqKey="Jaroenjittichai P" first="P." last="Jaroenjittichai">P. Jaroenjittichai</name>
<name sortKey="Kramer, M" sort="Kramer, M" uniqKey="Kramer M" first="M." last="Kramer">M. Kramer</name>
<name sortKey="Stappers, B W" sort="Stappers, B W" uniqKey="Stappers B" first="B. W." last="Stappers">B. W. Stappers</name>
</country>
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<noRegion>
<name sortKey="Gargano, F" sort="Gargano, F" uniqKey="Gargano F" first="F." last="Gargano">F. Gargano</name>
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<noRegion>
<name sortKey="Johnston, S" sort="Johnston, S" uniqKey="Johnston S" first="S." last="Johnston">S. Johnston</name>
</noRegion>
<name sortKey="Shannon, R" sort="Shannon, R" uniqKey="Shannon R" first="R." last="Shannon">R. Shannon</name>
</country>
</tree>
</affiliations>
</record>

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