Discovery of millisecond pulsars in radio searches of southern Fermi Large Area Telescope sources
Identifieur interne : 004318 ( PascalFrancis/Curation ); précédent : 004317; suivant : 004319Discovery of millisecond pulsars in radio searches of southern Fermi Large Area Telescope sources
Auteurs : M. J. Keith [Australie] ; S. Johnston [Australie] ; P. S. Ray [États-Unis] ; E. C. Ferrara [États-Unis] ; P. M. Saz Parkinson [États-Unis] ; Ö. Celik [États-Unis] ; A. Belfiore [États-Unis, Italie] ; D. Donato [États-Unis] ; C. C. Cheung [États-Unis] ; A. A. Abdo [États-Unis] ; F. Camilo [États-Unis] ; P. C. C. Freire [Allemagne] ; L. Guillemot [Allemagne] ; A. K. Harding [États-Unis] ; M. Kramer [Allemagne, Royaume-Uni] ; P. F. Michelson [États-Unis] ; S. M. Ransom [États-Unis] ; R. W. Romani [États-Unis] ; D. A. Smith [France] ; D. J. Thompson [États-Unis] ; P. Weltevrede [Royaume-Uni] ; K. S. Wood [États-Unis]Source :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2011.
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Abstract
Using the Parkes Radio Telescope, we have carried out deep observations of 11 unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSRJ1103-5403 (1FGLJ1103.9-5355) and PSRJ2241-5236 (1FGLJ2241.9-5236), and a long-period pulsar, PSRJ1604-44 (1FGLJ1604.7-4443). In addition, we searched for but did not detect any radio pulsations from six gamma-ray pulsars discovered by the Fermi satellite to a level of ˜0.04 mJy (for pulsars with a 10 per cent duty cycle). The timing of the millisecond pulsar PSRJ1103-5403 has shown that its position is 9 arcmin from the centroid of the gamma-ray source. Since these observations were carried out, independent evidence has shown that 1FGL J1103.9-5355 is associated with the flat spectrum radio source PKS 1101-536. It appears certain that the pulsar is not associated with the gamma-ray source, despite the seemingly low probability of a chance detection of a radio millisecond pulsar. We consider that PSRJ1604-44 is a chance discovery of a weak, long-period pulsar and is unlikely to be associated with 1FGL J1604.7-4443. PSR J2241-5236 has a spin period of 2.2 ms and orbits a very low mass companion with a 3.5-h orbital period. The relatively high flux density and low dispersion measure of PSR J2241-5236 make it an excellent candidate for high precision timing experiments. The gamma rays of 1FGL J2241.9-5236 have a spectrum that is well modelled by a power law with an exponential cut-off, and phase binning with the radio ephemeris results in a multipeaked gamma-ray pulse profile. Observations with Chandra have identified a coincident X-ray source within 0.1 arcsec of the position of the pulsar obtained by radio timing.
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Belfiore</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz</s1><s2>Santa Cruz, CA 95064</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica</s1><s2>20133 Milano</s2><s3>ITA</s3><sZ>7 aut.</sZ></inist:fA14><country>Italie</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Dipartimento di Fisica Teorica e Nucleare (DFNT), Università di Pavia</s1><s2>27100 Pavia</s2><s3>ITA</s3><sZ>7 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author><author><name sortKey="Donato, D" sort="Donato, D" uniqKey="Donato D" first="D." last="Donato">D. Donato</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>6 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>Departments of Physics and Gastronomy, University of Maryland</s1><s2>College Park, MD 20742</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Cheung, C C" sort="Cheung, C C" uniqKey="Cheung C" first="C. C." last="Cheung">C. C. Cheung</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>National Research Council Research Associate, National Academy of Sciences</s1><s2>Washington, DC 20001</s2><s3>USA</s3><sZ>9 aut.</sZ><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Abdo, A A" sort="Abdo, A A" uniqKey="Abdo A" first="A. A." last="Abdo">A. A. Abdo</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>National Research Council Research Associate, National Academy of Sciences</s1><s2>Washington, DC 20001</s2><s3>USA</s3><sZ>9 aut.</sZ><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name><affiliation wicri:level="1"><inist:fA14 i1="11"><s1>Columbia Astrophysics Laboratory Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><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><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation></author><author><name sortKey="Guillemot, L" sort="Guillemot, L" uniqKey="Guillemot L" first="L." last="Guillemot">L. Guillemot</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation></author><author><name sortKey="Harding, A K" sort="Harding, A K" uniqKey="Harding A" first="A. K." last="Harding">A. K. Harding</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Kramer, M" sort="Kramer, M" uniqKey="Kramer M" first="M." last="Kramer">M. Kramer</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>Manchester M13 9PL</s2><s3>GBR</s3><sZ>15 aut.</sZ><sZ>21 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Michelson, P F" sort="Michelson, P F" uniqKey="Michelson P" first="P. F." last="Michelson">P. F. Michelson</name><affiliation wicri:level="1"><inist:fA14 i1="14"><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>16 aut.</sZ><sZ>18 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Ransom, S M" sort="Ransom, S M" uniqKey="Ransom S" first="S. M." last="Ransom">S. M. Ransom</name><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>National Radio Astronomy Observatory (NRAO)</s1><s2>Charlottesville, VA 22903</s2><s3>USA</s3><sZ>17 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Romani, R W" sort="Romani, R W" uniqKey="Romani R" first="R. W." last="Romani">R. W. Romani</name><affiliation wicri:level="1"><inist:fA14 i1="14"><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>16 aut.</sZ><sZ>18 aut.</sZ></inist:fA14><country>États-Unis</country></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="16"><s1>Centre, d'Études Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>19 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Thompson, D J" sort="Thompson, D J" uniqKey="Thompson D" first="D. J." last="Thompson">D. J. Thompson</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Weltevrede, P" sort="Weltevrede, P" uniqKey="Weltevrede P" first="P." last="Weltevrede">P. Weltevrede</name><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>Manchester M13 9PL</s2><s3>GBR</s3><sZ>15 aut.</sZ><sZ>21 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Wood, K S" sort="Wood, K S" uniqKey="Wood K" first="K. S." last="Wood">K. S. Wood</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Space Science Division, Naval Research Laboratory</s1><s2>Washington, DC 20375</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">11-0287659</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 11-0287659 INIST</idno><idno type="RBID">Pascal:11-0287659</idno><idno type="wicri:Area/PascalFrancis/Corpus">001C26</idno><idno type="wicri:Area/PascalFrancis/Curation">004318</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Discovery of millisecond pulsars in radio searches of southern Fermi Large Area Telescope sources</title><author><name sortKey="Keith, M J" sort="Keith, M J" uniqKey="Keith M" first="M. J." last="Keith">M. J. Keith</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Australia Telescope National Facility, CSIRO</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country></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="01"><s1>Australia Telescope National Facility, CSIRO</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country></affiliation></author><author><name sortKey="Ray, P S" sort="Ray, P S" uniqKey="Ray P" first="P. S." last="Ray">P. S. Ray</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Space Science Division, Naval Research Laboratory</s1><s2>Washington, DC 20375</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Ferrara, E C" sort="Ferrara, E C" uniqKey="Ferrara E" first="E. C." last="Ferrara">E. C. Ferrara</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Saz Parkinson, P M" sort="Saz Parkinson, P M" uniqKey="Saz Parkinson P" first="P. M." last="Saz Parkinson">P. M. Saz Parkinson</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz</s1><s2>Santa Cruz, CA 95064</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Celik, O" sort="Celik, O" uniqKey="Celik O" first="Ö." last="Celik">Ö. Celik</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>6 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Department of Physics and Center for Space Sciences and Technology, University of Maryland Baltimore County</s1><s2>Baltimore, MD 21250</s2><s3>USA</s3><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Belfiore, A" sort="Belfiore, A" uniqKey="Belfiore A" first="A." last="Belfiore">A. Belfiore</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz</s1><s2>Santa Cruz, CA 95064</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica</s1><s2>20133 Milano</s2><s3>ITA</s3><sZ>7 aut.</sZ></inist:fA14><country>Italie</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Dipartimento di Fisica Teorica e Nucleare (DFNT), Università di Pavia</s1><s2>27100 Pavia</s2><s3>ITA</s3><sZ>7 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author><author><name sortKey="Donato, D" sort="Donato, D" uniqKey="Donato D" first="D." last="Donato">D. Donato</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>6 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>Departments of Physics and Gastronomy, University of Maryland</s1><s2>College Park, MD 20742</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Cheung, C C" sort="Cheung, C C" uniqKey="Cheung C" first="C. C." last="Cheung">C. C. Cheung</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>National Research Council Research Associate, National Academy of Sciences</s1><s2>Washington, DC 20001</s2><s3>USA</s3><sZ>9 aut.</sZ><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Abdo, A A" sort="Abdo, A A" uniqKey="Abdo A" first="A. A." last="Abdo">A. A. Abdo</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>National Research Council Research Associate, National Academy of Sciences</s1><s2>Washington, DC 20001</s2><s3>USA</s3><sZ>9 aut.</sZ><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Camilo, F" sort="Camilo, F" uniqKey="Camilo F" first="F." last="Camilo">F. Camilo</name><affiliation wicri:level="1"><inist:fA14 i1="11"><s1>Columbia Astrophysics Laboratory Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><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><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation></author><author><name sortKey="Guillemot, L" sort="Guillemot, L" uniqKey="Guillemot L" first="L." last="Guillemot">L. Guillemot</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation></author><author><name sortKey="Harding, A K" sort="Harding, A K" uniqKey="Harding A" first="A. K." last="Harding">A. K. Harding</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Kramer, M" sort="Kramer, M" uniqKey="Kramer M" first="M." last="Kramer">M. Kramer</name><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>Manchester M13 9PL</s2><s3>GBR</s3><sZ>15 aut.</sZ><sZ>21 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Michelson, P F" sort="Michelson, P F" uniqKey="Michelson P" first="P. F." last="Michelson">P. F. Michelson</name><affiliation wicri:level="1"><inist:fA14 i1="14"><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>16 aut.</sZ><sZ>18 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Ransom, S M" sort="Ransom, S M" uniqKey="Ransom S" first="S. M." last="Ransom">S. M. Ransom</name><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>National Radio Astronomy Observatory (NRAO)</s1><s2>Charlottesville, VA 22903</s2><s3>USA</s3><sZ>17 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Romani, R W" sort="Romani, R W" uniqKey="Romani R" first="R. W." last="Romani">R. W. Romani</name><affiliation wicri:level="1"><inist:fA14 i1="14"><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>16 aut.</sZ><sZ>18 aut.</sZ></inist:fA14><country>États-Unis</country></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="16"><s1>Centre, d'Études Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>19 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Thompson, D J" sort="Thompson, D J" uniqKey="Thompson D" first="D. J." last="Thompson">D. J. Thompson</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Weltevrede, P" sort="Weltevrede, P" uniqKey="Weltevrede P" first="P." last="Weltevrede">P. Weltevrede</name><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>Manchester M13 9PL</s2><s3>GBR</s3><sZ>15 aut.</sZ><sZ>21 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Wood, K S" sort="Wood, K S" uniqKey="Wood K" first="K. S." last="Wood">K. S. Wood</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Space Science Division, Naval Research Laboratory</s1><s2>Washington, DC 20375</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author></analytic><series><title level="j" type="main">Monthly Notices of the Royal Astronomical Society</title><title level="j" type="abbreviated">Mon. Not. R. Astron. Soc.</title><idno type="ISSN">0035-8711</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Monthly Notices of the Royal Astronomical Society</title><title level="j" type="abbreviated">Mon. Not. R. Astron. Soc.</title><idno type="ISSN">0035-8711</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dispersion measure</term><term>Flux density</term><term>Gamma radiation</term><term>Gamma ray source</term><term>High density</term><term>Millisecond pulsar</term><term>Orbits</term><term>Periodicity</term><term>Positions</term><term>Power law</term><term>Probability</term><term>Pulse shape</term><term>Radio pulsation</term><term>Radio spectrum</term><term>Radiopulsar</term><term>Timing</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Pulsar milliseconde</term><term>Pulsar radio</term><term>Source Rγ</term><term>Périodicité</term><term>Pulsation radio</term><term>Rayonnement gamma</term><term>Timing</term><term>Position</term><term>Spectre radio</term><term>Probabilité</term><term>Orbite</term><term>Densité élevée</term><term>Densité flux</term><term>Mesure dispersion</term><term>Loi puissance</term><term>Forme impulsion</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Using the Parkes Radio Telescope, we have carried out deep observations of 11 unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSRJ1103-5403 (1FGLJ1103.9-5355) and PSRJ2241-5236 (1FGLJ2241.9-5236), and a long-period pulsar, PSRJ1604-44 (1FGLJ1604.7-4443). In addition, we searched for but did not detect any radio pulsations from six gamma-ray pulsars discovered by the Fermi satellite to a level of ˜0.04 mJy (for pulsars with a 10 per cent duty cycle). The timing of the millisecond pulsar PSRJ1103-5403 has shown that its position is 9 arcmin from the centroid of the gamma-ray source. Since these observations were carried out, independent evidence has shown that 1FGL J1103.9-5355 is associated with the flat spectrum radio source PKS 1101-536. It appears certain that the pulsar is not associated with the gamma-ray source, despite the seemingly low probability of a chance detection of a radio millisecond pulsar. We consider that PSRJ1604-44 is a chance discovery of a weak, long-period pulsar and is unlikely to be associated with 1FGL J1604.7-4443. PSR J2241-5236 has a spin period of 2.2 ms and orbits a very low mass companion with a 3.5-h orbital period. The relatively high flux density and low dispersion measure of PSR J2241-5236 make it an excellent candidate for high precision timing experiments. The gamma rays of 1FGL J2241.9-5236 have a spectrum that is well modelled by a power law with an exponential cut-off, and phase binning with the radio ephemeris results in a multipeaked gamma-ray pulse profile. Observations with Chandra have identified a coincident X-ray source within 0.1 arcsec of the position of the pulsar obtained by radio timing.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0035-8711</s0></fA01><fA02 i1="01"><s0>MNRAA4</s0></fA02><fA03 i2="1"><s0>Mon. Not. R. Astron. Soc.</s0></fA03><fA05><s2>414</s2></fA05><fA06><s2>2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Discovery of millisecond pulsars in radio searches of southern Fermi Large Area Telescope sources</s1></fA08><fA11 i1="01" i2="1"><s1>KEITH (M. J.)</s1></fA11><fA11 i1="02" i2="1"><s1>JOHNSTON (S.)</s1></fA11><fA11 i1="03" i2="1"><s1>RAY (P. S.)</s1></fA11><fA11 i1="04" i2="1"><s1>FERRARA (E. C.)</s1></fA11><fA11 i1="05" i2="1"><s1>SAZ PARKINSON (P. M.)</s1></fA11><fA11 i1="06" i2="1"><s1>CELIK (Ö.)</s1></fA11><fA11 i1="07" i2="1"><s1>BELFIORE (A.)</s1></fA11><fA11 i1="08" i2="1"><s1>DONATO (D.)</s1></fA11><fA11 i1="09" i2="1"><s1>CHEUNG (C. C.)</s1></fA11><fA11 i1="10" i2="1"><s1>ABDO (A. A.)</s1></fA11><fA11 i1="11" i2="1"><s1>CAMILO (F.)</s1></fA11><fA11 i1="12" i2="1"><s1>FREIRE (P. C. C.)</s1></fA11><fA11 i1="13" i2="1"><s1>GUILLEMOT (L.)</s1></fA11><fA11 i1="14" i2="1"><s1>HARDING (A. K.)</s1></fA11><fA11 i1="15" i2="1"><s1>KRAMER (M.)</s1></fA11><fA11 i1="16" i2="1"><s1>MICHELSON (P. F.)</s1></fA11><fA11 i1="17" i2="1"><s1>RANSOM (S. M.)</s1></fA11><fA11 i1="18" i2="1"><s1>ROMANI (R. W.)</s1></fA11><fA11 i1="19" i2="1"><s1>SMITH (D. A.)</s1></fA11><fA11 i1="20" i2="1"><s1>THOMPSON (D. J.)</s1></fA11><fA11 i1="21" i2="1"><s1>WELTEVREDE (P.)</s1></fA11><fA11 i1="22" i2="1"><s1>WOOD (K. S.)</s1></fA11><fA14 i1="01"><s1>Australia Telescope National Facility, CSIRO</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Space Science Division, Naval Research Laboratory</s1><s2>Washington, DC 20375</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>22 aut.</sZ></fA14><fA14 i1="03"><s1>NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>20 aut.</sZ></fA14><fA14 i1="04"><s1>Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz</s1><s2>Santa Cruz, CA 95064</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>7 aut.</sZ></fA14><fA14 i1="05"><s1>Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center</s1><s2>Greenbelt, MD 20771</s2><s3>USA</s3><sZ>6 aut.</sZ><sZ>8 aut.</sZ></fA14><fA14 i1="06"><s1>Department of Physics and Center for Space Sciences and Technology, University of Maryland Baltimore County</s1><s2>Baltimore, MD 21250</s2><s3>USA</s3><sZ>6 aut.</sZ></fA14><fA14 i1="07"><s1>INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica</s1><s2>20133 Milano</s2><s3>ITA</s3><sZ>7 aut.</sZ></fA14><fA14 i1="08"><s1>Dipartimento di Fisica Teorica e Nucleare (DFNT), Università di Pavia</s1><s2>27100 Pavia</s2><s3>ITA</s3><sZ>7 aut.</sZ></fA14><fA14 i1="09"><s1>Departments of Physics and Gastronomy, University of Maryland</s1><s2>College Park, MD 20742</s2><s3>USA</s3><sZ>8 aut.</sZ></fA14><fA14 i1="10"><s1>National Research Council Research Associate, National Academy of Sciences</s1><s2>Washington, DC 20001</s2><s3>USA</s3><sZ>9 aut.</sZ><sZ>10 aut.</sZ></fA14><fA14 i1="11"><s1>Columbia Astrophysics Laboratory Columbia University</s1><s2>New York, NY 10027</s2><s3>USA</s3><sZ>11 aut.</sZ></fA14><fA14 i1="12"><s1>Max-Planck-Institut für Radioastronomie, Auf dem Hiigel 69</s1><s2>53121 Bonn</s2><s3>DEU</s3><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>15 aut.</sZ></fA14><fA14 i1="13"><s1>Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester</s1><s2>Manchester M13 9PL</s2><s3>GBR</s3><sZ>15 aut.</sZ><sZ>21 aut.</sZ></fA14><fA14 i1="14"><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>16 aut.</sZ><sZ>18 aut.</sZ></fA14><fA14 i1="15"><s1>National Radio Astronomy Observatory (NRAO)</s1><s2>Charlottesville, VA 22903</s2><s3>USA</s3><sZ>17 aut.</sZ></fA14><fA14 i1="16"><s1>Centre, d'Études Nucléaires de Bordeaux Gradignan, Université Bordeaux 1, CNRS/IN2p3</s1><s2>33175 Gradignan</s2><s3>FRA</s3><sZ>19 aut.</sZ></fA14><fA20><s1>1292-1300</s1></fA20><fA21><s1>2011</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>2067</s2><s5>354000190355760360</s5></fA43><fA44><s0>0000</s0><s1>© 2011 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>11-0287659</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Monthly Notices of the Royal Astronomical Society</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>Using the Parkes Radio Telescope, we have carried out deep observations of 11 unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSRJ1103-5403 (1FGLJ1103.9-5355) and PSRJ2241-5236 (1FGLJ2241.9-5236), and a long-period pulsar, PSRJ1604-44 (1FGLJ1604.7-4443). In addition, we searched for but did not detect any radio pulsations from six gamma-ray pulsars discovered by the Fermi satellite to a level of ˜0.04 mJy (for pulsars with a 10 per cent duty cycle). The timing of the millisecond pulsar PSRJ1103-5403 has shown that its position is 9 arcmin from the centroid of the gamma-ray source. Since these observations were carried out, independent evidence has shown that 1FGL J1103.9-5355 is associated with the flat spectrum radio source PKS 1101-536. It appears certain that the pulsar is not associated with the gamma-ray source, despite the seemingly low probability of a chance detection of a radio millisecond pulsar. We consider that PSRJ1604-44 is a chance discovery of a weak, long-period pulsar and is unlikely to be associated with 1FGL J1604.7-4443. PSR J2241-5236 has a spin period of 2.2 ms and orbits a very low mass companion with a 3.5-h orbital period. The relatively high flux density and low dispersion measure of PSR J2241-5236 make it an excellent candidate for high precision timing experiments. The gamma rays of 1FGL J2241.9-5236 have a spectrum that is well modelled by a power law with an exponential cut-off, and phase binning with the radio ephemeris results in a multipeaked gamma-ray pulse profile. Observations with Chandra have identified a coincident X-ray source within 0.1 arcsec of the position of the pulsar obtained by radio timing.</s0></fC01><fC02 i1="01" i2="3"><s0>001E03</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Pulsar milliseconde</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Millisecond pulsar</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Pulsar milisegundo</s0><s5>26</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Pulsar radio</s0><s5>27</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Radiopulsar</s0><s5>27</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Pulsar radio</s0><s5>27</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Source Rγ</s0><s5>28</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Gamma ray source</s0><s5>28</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Fuente Rγ</s0><s5>28</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Périodicité</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Periodicity</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Periodicidad</s0><s5>29</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Pulsation radio</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Radio pulsation</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Pulsación radio</s0><s5>30</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Rayonnement gamma</s0><s5>31</s5></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Gamma radiation</s0><s5>31</s5></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Timing</s0><s5>32</s5></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Timing</s0><s5>32</s5></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Position</s0><s5>33</s5></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Positions</s0><s5>33</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Spectre radio</s0><s5>34</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Radio spectrum</s0><s5>34</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Espectro radio</s0><s5>34</s5></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Probabilité</s0><s5>35</s5></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Probability</s0><s5>35</s5></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Orbite</s0><s5>36</s5></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Orbits</s0><s5>36</s5></fC03><fC03 i1="12" i2="X" l="FRE"><s0>Densité élevée</s0><s5>37</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>High density</s0><s5>37</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Densidad elevada</s0><s5>37</s5></fC03><fC03 i1="13" i2="3" l="FRE"><s0>Densité flux</s0><s5>38</s5></fC03><fC03 i1="13" i2="3" l="ENG"><s0>Flux density</s0><s5>38</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Mesure dispersion</s0><s5>39</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>Dispersion measure</s0><s5>39</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Medida dispersión</s0><s5>39</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Loi puissance</s0><s5>40</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Power law</s0><s5>40</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Ley poder</s0><s5>40</s5></fC03><fC03 i1="16" i2="X" l="FRE"><s0>Forme impulsion</s0><s5>41</s5></fC03><fC03 i1="16" i2="X" l="ENG"><s0>Pulse shape</s0><s5>41</s5></fC03><fC03 i1="16" i2="X" l="SPA"><s0>Forma impulsión</s0><s5>41</s5></fC03><fN21><s1>192</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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