Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026
Identifieur interne : 005C53 ( Main/Exploration ); précédent : 005C52; suivant : 005C54Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026
Auteurs : R. Rousseau [France] ; M.-H. Grondin [Allemagne] ; A. Van Etten [États-Unis] ; M. Lemoine-Goumard [France] ; S. Bogdanov [États-Unis] ; J. W. T. Hessels [Pays-Bas] ; V. M. Kaspi [Canada] ; Z. Arzoumanian [États-Unis] ; F. Camilo [États-Unis] ; J. M. Casandjian [France] ; C. M. Espinoza [Royaume-Uni] ; S. Johnston [Australie] ; A. G. Lyne [Royaume-Uni] ; D. A. Smith [France] ; B. W. Stappers [Royaume-Uni] ; G. A. Caliandro [Espagne]Source :
- Astronomy and astrophysics : (Berlin. Print) [ 0004-6361 ] ; 2012.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Context. Since its launch, the Fermi satellite has firmly identified 5 pulsar wind nebulae plus a large number of candidates, all powered by young and energetic pulsars. HESS J1857+026 is a spatially extended γ-ray source detected by H.E.S.S. and classified as a possible pulsar wind nebula candidate powered by PSR J 1856+0245. Aims. We search for γ-ray pulsations from PSR J 1856+0245 and explore the characteristics of its associated pulsar wind nebula. Methods. Using a rotational ephemeris obtained from the Lovell telescope at Jodrell Bank Observatory at 1.5 GHz, we phase-fold 36 months of γ-ray data acquired by the Large Area Telescope (LAT) aboard Fermi. We also perform a complete γ-ray spectral and morphological analysis. Results. No γ-ray pulsations were detected from PSR J1856+0245. However, significant emission is detected at a position coincident with the TeV source HESS J1857+026. The γ-ray spectrum is well described by a simple power-law with a spectral index of Γ = 1.53 ± 0.11stat ± 0.55syst and an energy flux of G(0.1-100 GeV) = (2.71 ± 0.52stat ± 1.51syst) × 10-11 erg cm-2 s-1. The γ-ray luminosity is LγPWN(0.1-100 GeV) = (2.5 ± O.5stat ± 1.5syst) x 1035 (d / 9 kpc)2 erg s-1, assuming a distance of 9 kpc. This implies a γ-ray efficiency of ∼5% for E========dot; = 4.6 × 1036 erg s-1, in the range expected for pulsar wind nebulae. Detailed multi-wavelength modeling provides new constraints on its pulsar wind nebula nature.
Affiliations:
- Allemagne, Australie, Canada, Espagne, France, Pays-Bas, Royaume-Uni, États-Unis
- Angleterre, Aquitaine, Bade-Wurtemberg, Catalogne, District de Karlsruhe, Grand Manchester, Hollande-Septentrionale, Nouvelle-Aquitaine, Québec, État de New York, Île-de-France
- Amsterdam, Gif-sur-Yvette, Gradignan, Heidelberg, Manchester, Montréal, New York
- Université Columbia, Université McGill, Université d'Amsterdam, Université de Manchester
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000F27
- to stream PascalFrancis, to step Curation: 004F94
- to stream PascalFrancis, to step Checkpoint: 001124
- to stream Main, to step Merge: 005F59
- to stream Main, to step Curation: 005C53
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026</title><author><name sortKey="Rousseau, R" sort="Rousseau, R" uniqKey="Rousseau R" first="R." last="Rousseau">R. Rousseau</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 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="Grondin, M H" sort="Grondin, M H" uniqKey="Grondin M" first="M.-H." last="Grondin">M.-H. Grondin</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Max-Planck-Institut fiir Kernphysik</s1><s2>69029 Heidelberg</s2><s3>DEU</s3><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>69029 Heidelberg</wicri:noRegion><wicri:noRegion>Max-Planck-Institut fiir Kernphysik</wicri:noRegion><wicri:noRegion>Max-Planck-Institut fiir Kernphysik</wicri:noRegion></affiliation><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Landessternwarte, Universität Heidelberg, Königstuhl</s1><s2>69117 Heidelberg</s2><s3>DEU</s3><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Bade-Wurtemberg</region><region type="district" nuts="2">District de Karlsruhe</region><settlement type="city">Heidelberg</settlement></placeName></affiliation></author><author><name sortKey="Van Etten, A" sort="Van Etten, A" uniqKey="Van Etten A" first="A." last="Van Etten">A. Van Etten</name><affiliation wicri:level="1"><inist:fA14 i1="04"><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><s2>Stanford, CA 94305</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Stanford, CA 94305</wicri:noRegion></affiliation></author><author><name sortKey="Lemoine Goumard, M" sort="Lemoine Goumard, M" uniqKey="Lemoine Goumard M" first="M." last="Lemoine-Goumard">M. Lemoine-Goumard</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 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="Bogdanov, S" sort="Bogdanov, S" uniqKey="Bogdanov S" first="S." last="Bogdanov">S. Bogdanov</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Columbia Astrophysics Laboratory, Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName><orgName type="university">Université Columbia</orgName></affiliation></author><author><name sortKey="Hessels, J W T" sort="Hessels, J W T" uniqKey="Hessels J" first="J. W. T." last="Hessels">J. W. T. Hessels</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2</s1><s2>7990 AA, Dwingeloo</s2><s3>NLD</s3><sZ>6 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>7990 AA, Dwingeloo</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="07"><s1>Astronomical Institute "Anton Pannekoek", University of Amsterdam, Science Park 904</s1><s2>1098 XH Amsterdam</s2><s3>NLD</s3><sZ>6 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>1098 XH Amsterdam</wicri:noRegion><orgName type="university">Université d'Amsterdam</orgName><placeName><settlement type="city">Amsterdam</settlement><region>Hollande-Septentrionale</region></placeName></affiliation></author><author><name sortKey="Kaspi, V M" sort="Kaspi, V M" uniqKey="Kaspi V" first="V. M." last="Kaspi">V. M. Kaspi</name><affiliation wicri:level="4"><inist:fA14 i1="08"><s1>Department of Physics, McGill University</s1><s2>Montreal, PQ H3A 2T8</s2><s3>CAN</s3><sZ>7 aut.</sZ></inist:fA14><country>Canada</country><placeName><settlement type="city">Montréal</settlement><region type="state">Québec</region></placeName><orgName type="university">Université McGill</orgName></affiliation></author><author><name sortKey="Arzoumanian, Z" sort="Arzoumanian, Z" uniqKey="Arzoumanian Z" first="Z." last="Arzoumanian">Z. Arzoumanian</name><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>X-ray Astrophysics Laboratory and CRESST, NASA Goddard Space Flight Center, Code 662</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Greenbelt, MD 20771</wicri:noRegion></affiliation></author><author><name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Columbia Astrophysics Laboratory, Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName><orgName type="university">Université Columbia</orgName></affiliation></author><author><name sortKey="Casandjian, J M" sort="Casandjian, J M" uniqKey="Casandjian J" first="J. M." last="Casandjian">J. M. Casandjian</name><affiliation wicri:level="3"><inist:fA14 i1="10"><s1>Laboratoire AIM, CEA-IRFU/CNRS/Universite Paris Diderot, Service d'Astrophysique, CEA Saclay</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>10 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif-sur-Yvette</settlement></placeName></affiliation></author><author><name sortKey="Espinoza, C M" sort="Espinoza, C M" uniqKey="Espinoza C" first="C. M." last="Espinoza">C. M. Espinoza</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Johnston, S" sort="Johnston, S" uniqKey="Johnston S" first="S." last="Johnston">S. Johnston</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>CSIRO Astronomy and Space Science, Australia Telescope National Facility</s1><s2>Epping NSW 1710</s2><s3>AUS</s3><sZ>12 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Epping NSW 1710</wicri:noRegion></affiliation></author><author><name sortKey="Lyne, A G" sort="Lyne, A G" uniqKey="Lyne A" first="A. G." last="Lyne">A. G. Lyne</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></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="3"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Gradignan</settlement></placeName></affiliation></author><author><name sortKey="Stappers, B W" sort="Stappers, B W" uniqKey="Stappers B" first="B. W." last="Stappers">B. W. Stappers</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Caliandro, G A" sort="Caliandro, G A" uniqKey="Caliandro G" first="G. A." last="Caliandro">G. A. Caliandro</name><affiliation wicri:level="2"><inist:fA14 i1="13"><s1>Institut de Ciències de l'Espai (IEEE-CSIC), Campus UAB</s1><s2>08193 Barcelona</s2><s3>ESP</s3><sZ>16 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0411587</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0411587 INIST</idno><idno type="RBID">Pascal:12-0411587</idno><idno type="wicri:Area/PascalFrancis/Corpus">000F27</idno><idno type="wicri:Area/PascalFrancis/Curation">004F94</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">001124</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">001124</idno><idno type="wicri:doubleKey">0004-6361:2012:Rousseau R:fermi:lat:constraints</idno><idno type="wicri:Area/Main/Merge">005F59</idno><idno type="wicri:Area/Main/Curation">005C53</idno><idno type="wicri:Area/Main/Exploration">005C53</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026</title><author><name sortKey="Rousseau, R" sort="Rousseau, R" uniqKey="Rousseau R" first="R." last="Rousseau">R. Rousseau</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Gradignan</settlement></placeName></affiliation></author><author><name sortKey="Grondin, M H" sort="Grondin, M H" uniqKey="Grondin M" first="M.-H." last="Grondin">M.-H. Grondin</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Max-Planck-Institut fiir Kernphysik</s1><s2>69029 Heidelberg</s2><s3>DEU</s3><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>69029 Heidelberg</wicri:noRegion><wicri:noRegion>Max-Planck-Institut fiir Kernphysik</wicri:noRegion><wicri:noRegion>Max-Planck-Institut fiir Kernphysik</wicri:noRegion></affiliation><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Landessternwarte, Universität Heidelberg, Königstuhl</s1><s2>69117 Heidelberg</s2><s3>DEU</s3><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Bade-Wurtemberg</region><region type="district" nuts="2">District de Karlsruhe</region><settlement type="city">Heidelberg</settlement></placeName></affiliation></author><author><name sortKey="Van Etten, A" sort="Van Etten, A" uniqKey="Van Etten A" first="A." last="Van Etten">A. Van Etten</name><affiliation wicri:level="1"><inist:fA14 i1="04"><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><s2>Stanford, CA 94305</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Stanford, CA 94305</wicri:noRegion></affiliation></author><author><name sortKey="Lemoine Goumard, M" sort="Lemoine Goumard, M" uniqKey="Lemoine Goumard M" first="M." last="Lemoine-Goumard">M. Lemoine-Goumard</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 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="Bogdanov, S" sort="Bogdanov, S" uniqKey="Bogdanov S" first="S." last="Bogdanov">S. Bogdanov</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Columbia Astrophysics Laboratory, Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName><orgName type="university">Université Columbia</orgName></affiliation></author><author><name sortKey="Hessels, J W T" sort="Hessels, J W T" uniqKey="Hessels J" first="J. W. T." last="Hessels">J. W. T. Hessels</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2</s1><s2>7990 AA, Dwingeloo</s2><s3>NLD</s3><sZ>6 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>7990 AA, Dwingeloo</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="07"><s1>Astronomical Institute "Anton Pannekoek", University of Amsterdam, Science Park 904</s1><s2>1098 XH Amsterdam</s2><s3>NLD</s3><sZ>6 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>1098 XH Amsterdam</wicri:noRegion><orgName type="university">Université d'Amsterdam</orgName><placeName><settlement type="city">Amsterdam</settlement><region>Hollande-Septentrionale</region></placeName></affiliation></author><author><name sortKey="Kaspi, V M" sort="Kaspi, V M" uniqKey="Kaspi V" first="V. M." last="Kaspi">V. M. Kaspi</name><affiliation wicri:level="4"><inist:fA14 i1="08"><s1>Department of Physics, McGill University</s1><s2>Montreal, PQ H3A 2T8</s2><s3>CAN</s3><sZ>7 aut.</sZ></inist:fA14><country>Canada</country><placeName><settlement type="city">Montréal</settlement><region type="state">Québec</region></placeName><orgName type="university">Université McGill</orgName></affiliation></author><author><name sortKey="Arzoumanian, Z" sort="Arzoumanian, Z" uniqKey="Arzoumanian Z" first="Z." last="Arzoumanian">Z. Arzoumanian</name><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>X-ray Astrophysics Laboratory and CRESST, NASA Goddard Space Flight Center, Code 662</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Greenbelt, MD 20771</wicri:noRegion></affiliation></author><author><name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Columbia Astrophysics Laboratory, Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName><orgName type="university">Université Columbia</orgName></affiliation></author><author><name sortKey="Casandjian, J M" sort="Casandjian, J M" uniqKey="Casandjian J" first="J. M." last="Casandjian">J. M. Casandjian</name><affiliation wicri:level="3"><inist:fA14 i1="10"><s1>Laboratoire AIM, CEA-IRFU/CNRS/Universite Paris Diderot, Service d'Astrophysique, CEA Saclay</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>10 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif-sur-Yvette</settlement></placeName></affiliation></author><author><name sortKey="Espinoza, C M" sort="Espinoza, C M" uniqKey="Espinoza C" first="C. M." last="Espinoza">C. M. Espinoza</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Johnston, S" sort="Johnston, S" uniqKey="Johnston S" first="S." last="Johnston">S. Johnston</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>CSIRO Astronomy and Space Science, Australia Telescope National Facility</s1><s2>Epping NSW 1710</s2><s3>AUS</s3><sZ>12 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Epping NSW 1710</wicri:noRegion></affiliation></author><author><name sortKey="Lyne, A G" sort="Lyne, A G" uniqKey="Lyne A" first="A. G." last="Lyne">A. G. Lyne</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></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="3"><inist:fA14 i1="01"><s1>Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Gradignan</settlement></placeName></affiliation></author><author><name sortKey="Stappers, B W" sort="Stappers, B W" uniqKey="Stappers B" first="B. W." last="Stappers">B. W. Stappers</name><affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>M13 9PL</s2><s3>GBR</s3><sZ>11 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Manchester</settlement><region type="nation">Angleterre</region><region nuts="2" type="region">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Caliandro, G A" sort="Caliandro, G A" uniqKey="Caliandro G" first="G. A." last="Caliandro">G. A. Caliandro</name><affiliation wicri:level="2"><inist:fA14 i1="13"><s1>Institut de Ciències de l'Espai (IEEE-CSIC), Campus UAB</s1><s2>08193 Barcelona</s2><s3>ESP</s3><sZ>16 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title><title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title><idno type="ISSN">0004-6361</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title><title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title><idno type="ISSN">0004-6361</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cosmic gamma sources</term><term>Energetics</term><term>Energy transfer</term><term>Extended γ ray source</term><term>Gamma radiation</term><term>Gamma spectra</term><term>Luminosity</term><term>Modelling</term><term>Positions</term><term>Power law</term><term>Pulsars</term><term>Spatial observatory</term><term>Spectral analysis</term><term>Spectral index</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Pulsar</term><term>Observatoire spatial</term><term>Energétique</term><term>Source Rγ étendue</term><term>Analyse spectrale</term><term>Position</term><term>Spectre gamma</term><term>Loi puissance</term><term>Indice spectral</term><term>Transfert énergie</term><term>Luminosité</term><term>Modélisation</term><term>Rayonnement gamma</term><term>Source gamma cosmique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Context. Since its launch, the Fermi satellite has firmly identified 5 pulsar wind nebulae plus a large number of candidates, all powered by young and energetic pulsars. HESS J1857+026 is a spatially extended γ-ray source detected by H.E.S.S. and classified as a possible pulsar wind nebula candidate powered by PSR J 1856+0245. Aims. We search for γ-ray pulsations from PSR J 1856+0245 and explore the characteristics of its associated pulsar wind nebula. Methods. Using a rotational ephemeris obtained from the Lovell telescope at Jodrell Bank Observatory at 1.5 GHz, we phase-fold 36 months of γ-ray data acquired by the Large Area Telescope (LAT) aboard Fermi. We also perform a complete γ-ray spectral and morphological analysis. Results. No γ-ray pulsations were detected from PSR J1856+0245. However, significant emission is detected at a position coincident with the TeV source HESS J1857+026. The γ-ray spectrum is well described by a simple power-law with a spectral index of Γ = 1.53 ± 0.11<sub>stat</sub> ± 0.55<sub>syst</sub> and an energy flux of G(0.1-100 GeV) = (2.71 ± 0.52<sub>stat</sub> ± 1.51<sub>syst</sub>)<sub> </sub>× 10<sup>-11</sup> erg cm<sup>-2</sup> s<sup>-1</sup>. The γ-ray luminosity is L<sup>γ</sup><sub>PWN</sub>(0.1-100 GeV) = (2.5 ± O.5<sub>stat</sub> ± 1.5<sub>s</sub>y<sub>st</sub>) x 10<sup>35</sup> (d / 9 kpc)<sup>2</sup> erg s<sup>-1</sup>, assuming a distance of 9 kpc. This implies a γ-ray efficiency of ∼5% for E========dot; = 4.6 × 10<sup>36</sup> erg s<sup>-1</sup>, in the range expected for pulsar wind nebulae. Detailed multi-wavelength modeling provides new constraints on its pulsar wind nebula nature.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Canada</li><li>Espagne</li><li>France</li><li>Pays-Bas</li><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Angleterre</li><li>Aquitaine</li><li>Bade-Wurtemberg</li><li>Catalogne</li><li>District de Karlsruhe</li><li>Grand Manchester</li><li>Hollande-Septentrionale</li><li>Nouvelle-Aquitaine</li><li>Québec</li><li>État de New York</li><li>Île-de-France</li></region><settlement><li>Amsterdam</li><li>Gif-sur-Yvette</li><li>Gradignan</li><li>Heidelberg</li><li>Manchester</li><li>Montréal</li><li>New York</li></settlement><orgName><li>Université Columbia</li><li>Université McGill</li><li>Université d'Amsterdam</li><li>Université de Manchester</li></orgName></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Rousseau, R" sort="Rousseau, R" uniqKey="Rousseau R" first="R." last="Rousseau">R. Rousseau</name></region><name sortKey="Casandjian, J M" sort="Casandjian, J M" uniqKey="Casandjian J" first="J. M." last="Casandjian">J. M. Casandjian</name><name sortKey="Lemoine Goumard, M" sort="Lemoine Goumard, M" uniqKey="Lemoine Goumard M" first="M." last="Lemoine-Goumard">M. Lemoine-Goumard</name><name sortKey="Smith, D A" sort="Smith, D A" uniqKey="Smith D" first="D. A." last="Smith">D. A. Smith</name></country><country name="Allemagne"><noRegion><name sortKey="Grondin, M H" sort="Grondin, M H" uniqKey="Grondin M" first="M.-H." last="Grondin">M.-H. Grondin</name></noRegion><name sortKey="Grondin, M H" sort="Grondin, M H" uniqKey="Grondin M" first="M.-H." last="Grondin">M.-H. Grondin</name></country><country name="États-Unis"><noRegion><name sortKey="Van Etten, A" sort="Van Etten, A" uniqKey="Van Etten A" first="A." last="Van Etten">A. Van Etten</name></noRegion><name sortKey="Arzoumanian, Z" sort="Arzoumanian, Z" uniqKey="Arzoumanian Z" first="Z." last="Arzoumanian">Z. Arzoumanian</name><name sortKey="Bogdanov, S" sort="Bogdanov, S" uniqKey="Bogdanov S" first="S." last="Bogdanov">S. Bogdanov</name><name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name></country><country name="Pays-Bas"><noRegion><name sortKey="Hessels, J W T" sort="Hessels, J W T" uniqKey="Hessels J" first="J. W. T." last="Hessels">J. W. T. Hessels</name></noRegion><name sortKey="Hessels, J W T" sort="Hessels, J W T" uniqKey="Hessels J" first="J. W. T." last="Hessels">J. W. T. Hessels</name></country><country name="Canada"><region name="Québec"><name sortKey="Kaspi, V M" sort="Kaspi, V M" uniqKey="Kaspi V" first="V. M." last="Kaspi">V. M. Kaspi</name></region></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Espinoza, C M" sort="Espinoza, C M" uniqKey="Espinoza C" first="C. M." last="Espinoza">C. M. Espinoza</name></region><name sortKey="Lyne, A G" sort="Lyne, A G" uniqKey="Lyne A" first="A. G." last="Lyne">A. G. Lyne</name><name sortKey="Stappers, B W" sort="Stappers, B W" uniqKey="Stappers B" first="B. W." last="Stappers">B. W. Stappers</name></country><country name="Australie"><noRegion><name sortKey="Johnston, S" sort="Johnston, S" uniqKey="Johnston S" first="S." last="Johnston">S. Johnston</name></noRegion></country><country name="Espagne"><region name="Catalogne"><name sortKey="Caliandro, G A" sort="Caliandro, G A" uniqKey="Caliandro G" first="G. A." last="Caliandro">G. A. Caliandro</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 005C53 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 005C53 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Asie
|area= AustralieFrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:12-0411587
|texte= Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026
}}
| This area was generated with Dilib version V0.6.33. |  |