دورية أكاديمية
Two Millisecond Pulsars Discovered by the PALFA Survey and a Shapiro Delay Measurement
| العنوان: | Two Millisecond Pulsars Discovered by the PALFA Survey and a Shapiro Delay Measurement |
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| المؤلفون: | Deneva, J. S., Freire, P. C. C., Cordes, J. M., Lyne, A. G., Ransom, S. M., Cognard, Ismaël, Camilo, F., Nice, D. J., Stairs, I. H., Allen, B., Bhat, N. D. R., Bogdanov, S., Brazier, A., Champion, D. J., Chatterjee, S., Crawford, F., Desvignes, G., Hessels, J. W. T., Jenet, F. A., Kaspi, V. M., Knispel, B., Kramer, M., Lazarus, P., van Leeuwen, J., Lorimer, D. R., Lynch, R. S., Mclaughlin, M. A., Scholz, P., Siemens, X., Stappers, B. W., Stovall, K., Venkataraman, A. |
| المساهمون: | Arecibo Observatory, National Astronomy and Ionosphere Center (NAIC), Cornell University New York, Max-Planck-Institut für Radioastronomie (MPIFR), Department of Astronomy Ithaca, Jodrell Bank Centre for Astrophysics, University of Manchester Manchester, National Radio Astronomy Observatory (NRAO), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Columbia Astrophysics Laboratory (CAL), Columbia University New York, Lafayette College Easton, University of British Columbia Vancouver, Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft, Center for Astrophysics and Supercomputing, Swinburne University of Technology Melbourne, Department of Physics and Astronomy Lancaster, Franklin and Marshall College, Netherlands Institute for Radio Astronomy (ASTRON), Center for Gravitational Wave Astronomy (CGWA), University of Texas Rio Grande Valley Brownsville, TX (UTRGV), Department of Physics Montréal, McGill University = Université McGill Montréal, Canada, Department of Physics, West Virginia University, West Virginia University, Physics Department, University of Wisconsin at Milwaukee, University of Wisconsin - Milwaukee |
| المصدر: | ISSN: 0004-637X. |
| بيانات النشر: | HAL CCSD American Astronomical Society |
| سنة النشر: | 2012 |
| المجموعة: | Université d'Orléans: HAL |
| مصطلحات موضوعية: | [SDU]Sciences of the Universe [physics], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS]Physics [physics] |
| الوصف: | International audience ; We present two millisecond pulsar discoveries from the PALFA survey of the Galactic plane with the Arecibo telescope. PSR J1955+2527 is an isolated pulsar with a period of 4.87 ms, and PSR J1949+3106 has a period of 13.14 ms and is in a 1.9 day binary system with a massive companion. Their timing solutions, based on 4 years of timing measurements with the Arecibo, Green Bank, Nançay , and Jodrell Bank telescopes, allow precise determination of spin and astrometric parameters, including precise determinations of their proper motions. For PSR J1949+3106, we can clearly detect the Shapiro delay. From this we measure the pulsar mass to be 1.47 +0.43 −0.31 M , the companion mass to be 0.85 +0.14 −0.11 M , and the orbital inclination to be i = 79.9 −1.9 +1.6 deg, where uncertainties correspond to ±1σ confidence levels. With continued timing, we expect to also be able to detect the advance of periastron for the J1949+3106 system. This effect, combined with the Shapiro delay, will eventually provide very precise mass measurements for this system and a test of general relativity. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/1208.1228; insu-01259503; https://insu.hal.science/insu-01259503Test; https://insu.hal.science/insu-01259503/documentTest; https://insu.hal.science/insu-01259503/file/Deneva-2012.pdfTest; ARXIV: 1208.1228; BIBCODE: 2012ApJ.757.89D |
| DOI: | 10.1088/0004-637X/757/1/89 |
| الإتاحة: | https://doi.org/10.1088/0004-637X/757/1/89Test https://insu.hal.science/insu-01259503Test https://insu.hal.science/insu-01259503/documentTest https://insu.hal.science/insu-01259503/file/Deneva-2012.pdfTest |
| حقوق: | http://creativecommons.org/licenses/by-nc-ndTest/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.49D15074 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/0004-637X/757/1/89 |
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