Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
| dc.contributor.author | CAMILO, F. | |
| dc.contributor.author | RAY, P. S. | |
| dc.contributor.author | RANSOM, S. M. | |
| dc.contributor.author | BURGAY, M. | |
| dc.contributor.author | JOHNSON, T. J. | |
| dc.contributor.author | KERR, M. | |
| dc.contributor.author | GOTTHELF, E. V. | |
| dc.contributor.author | HALPERN, J. P. | |
| dc.contributor.author | REYNOLDS, J. | |
| dc.contributor.author | ROMANI, R. W. | |
| dc.contributor.author | DEMOREST, P. | |
| dc.contributor.author | JOHNSTON, S. | |
| dc.contributor.author | VAN STRATEN, W. | |
| dc.contributor.author | PARKINSON, P. M. Saz | |
| dc.contributor.author | ZIEGLER, M. | |
| dc.contributor.author | DORMODY, M. | |
| dc.contributor.author | THOMPSON, D. J. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | SMITH, D. A. | |
| dc.contributor.author | HARDING, A. K. | |
| dc.contributor.author | ABDO, Aous A. | |
| dc.contributor.author | CRAWFORD, F. | |
| dc.contributor.author | FREIRE, P. C. C. | |
| dc.contributor.author | KEITH, M. | |
| dc.contributor.author | KRAMER, M. | |
| dc.contributor.author | ROBERTS, M. S. E. | |
| dc.contributor.author | WELTEVREDE, P. | |
| dc.contributor.author | WOOD, K. S. | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0004-637X | |
| dc.description.abstractEn | Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discovery of radio pulsations from two of them. PSR J1741-2054, with period P=413ms, was detected in archival Parkes telescope data and subsequently has been detected at the Green Bank Telescope (GBT). Its received flux varies greatly due to interstellar scintillation and it has a very small dispersion measure of DM=4.7pc/cc, implying a distance of ~0.4kpc and possibly the smallest luminosity of any known radio pulsar. At this distance, for isotropic emission, its gamma-ray luminosity above 0.1GeV corresponds to 25% of the spin-down luminosity of dE/dt=9.4e33erg/s. The gamma-ray profile occupies 1/3 of pulse phase and has three closely-spaced peaks with the first peak lagging the radio pulse by delta=0.29P. We have also identified a soft Swift source that is the likely X-ray counterpart. In many respects PSR J1741-2054 resembles the Geminga pulsar. The second source, PSR J2032+4127, was detected at the GBT. It has P=143ms, and its DM=115pc/cc suggests a distance of ~3.6kpc, but we consider it likely that it is located within the Cyg OB2 stellar association at half that distance. The radio emission is nearly 100% linearly polarized, and the main radio peak precedes by delta=0.15P the first of two narrow gamma-ray peaks that are separated by Delta=0.50P. Faint, diffuse X-ray emission in a Chandra image is possibly its pulsar wind nebula. PSR J2032+4127 likely accounts for the EGRET source 3EG J2033+4118, while its pulsar wind is responsible for the formerly unidentified HEGRA source TeV J2032+4130. | |
| dc.language.iso | en | |
| dc.publisher | American Astronomical Society | |
| dc.subject.en | gamma rays: observations | |
| dc.subject.en | ISM: individual: TeV J2032+4130 | |
| dc.subject.en | open clusters and associations: individual: Cyg OB2 | |
| dc.subject.en | pulsars: individual: PSR J1741-2054 PSR J2032+4127 | |
| dc.subject.en | X-rays: individual: Swift J174157.6-205411 | |
| dc.title.en | Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/0004-637X/705/1/1 | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| dc.identifier.arxiv | 0908.2626 | |
| bordeaux.journal | The Astrophysical Journal | |
| bordeaux.page | 1-13 | |
| bordeaux.volume | 705 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00429066 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00429066v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20Journal&rft.date=2009&rft.volume=705&rft.spage=1-13&rft.epage=1-13&rft.eissn=0004-637X&rft.issn=0004-637X&rft.au=CAMILO,%20F.&RAY,%20P.%20S.&RANSOM,%20S.%20M.&BURGAY,%20M.&JOHNSON,%20T.%20J.&rft.genre=article |
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