Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • J. S. Deneva
  • P. C.C. Freire
  • J. M. Cordes
  • A. G. Lyne
  • S. M. Ransom
  • I. Cognard
  • F. Camilo
  • D. J. Nice
  • I. H. Stairs
  • B. Allen
  • N. D.R. Bhat
  • S. Bogdanov
  • A. Brazier
  • D. J. Champion
  • S. Chatterjee
  • F. Crawford
  • G. Desvignes
  • J. W.T. Hessels
  • F. A. Jenet
  • V. M. Kaspi
  • B. Knispel
  • M. Kramer
  • P. Lazarus
  • J. Van Leeuwen
  • D. R. Lorimer
  • R. S. Lynch
  • M. A. McLaughlin
  • P. Scholz
  • X. Siemens
  • B. W. Stappers
  • K. Stovall
  • A. Venkataraman

Organisationseinheiten

Externe Organisationen

  • Max-Planck-Institut für Radioastronomie (MPIfR)
  • Cornell University
  • University of Manchester
  • National Radio Astronomy Observatory Socorro
  • Observatoire de Paris (OBSPARIS)
  • Columbia University
  • Lafayette College
  • University of British Columbia
  • Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
  • Swinburne University of Technology
  • Franklin and Marshall College, Lancaster
  • Netherlands Institute for Radio Astronomy (ASTRON)
  • Universiteit van Amsterdam (UvA)
  • University of Texas at Brownsville
  • McGill University
  • West Virginia University
  • University of Wisconsin Milwaukee
  • Arecibo Observatory
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer89
Seitenumfang10
FachzeitschriftAstrophysical Journal
Jahrgang757
Ausgabenummer1
Frühes Online-Datum6 Sept. 2012
PublikationsstatusVeröffentlicht - 20 Sept. 2012

Abstract

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 4.87ms, and PSR J1949+3106 has a period of 13.14ms and is in a 1.9day binary system with a massive companion. Their timing solutions, based on 4years 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 +1.6deg, 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.

ASJC Scopus Sachgebiete

Zitieren

Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement. / Deneva, J. S.; Freire, P. C.C.; Cordes, J. M. et al.
in: Astrophysical Journal, Jahrgang 757, Nr. 1, 89, 20.09.2012.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Deneva, JS, Freire, PCC, Cordes, JM, Lyne, AG, Ransom, SM, Cognard, I, Camilo, F, Nice, DJ, Stairs, IH, Allen, B, Bhat, NDR, Bogdanov, S, Brazier, A, Champion, DJ, Chatterjee, S, Crawford, F, Desvignes, G, Hessels, JWT, Jenet, FA, Kaspi, VM, Knispel, B, Kramer, M, Lazarus, P, Van Leeuwen, J, Lorimer, DR, Lynch, RS, McLaughlin, MA, Scholz, P, Siemens, X, Stappers, BW, Stovall, K & Venkataraman, A 2012, 'Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement', Astrophysical Journal, Jg. 757, Nr. 1, 89. https://doi.org/10.1088/0004-637X/757/1/89
Deneva, J. S., Freire, P. C. C., Cordes, J. M., Lyne, A. G., Ransom, S. M., Cognard, I., 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., ... Venkataraman, A. (2012). Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement. Astrophysical Journal, 757(1), Artikel 89. https://doi.org/10.1088/0004-637X/757/1/89
Deneva JS, Freire PCC, Cordes JM, Lyne AG, Ransom SM, Cognard I et al. Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement. Astrophysical Journal. 2012 Sep 20;757(1):89. Epub 2012 Sep 6. doi: 10.1088/0004-637X/757/1/89
Deneva, J. S. ; Freire, P. C.C. ; Cordes, J. M. et al. / Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement. in: Astrophysical Journal. 2012 ; Jahrgang 757, Nr. 1.
Download
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abstract = "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 4.87ms, and PSR J1949+3106 has a period of 13.14ms and is in a 1.9day binary system with a massive companion. Their timing solutions, based on 4years of timing measurements with the Arecibo, Green Bank, Nan{\c c}ay, 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 +1.6deg, 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.",
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T1 - Two millisecond pulsars discovered by the palfa survey and a shapiro delay measurement

AU - Deneva, J. S.

AU - Freire, P. C.C.

AU - Cordes, J. M.

AU - Lyne, A. G.

AU - Ransom, S. M.

AU - Cognard, I.

AU - Camilo, F.

AU - Nice, D. J.

AU - Stairs, I. H.

AU - Allen, B.

AU - Bhat, N. D.R.

AU - Bogdanov, S.

AU - Brazier, A.

AU - Champion, D. J.

AU - Chatterjee, S.

AU - Crawford, F.

AU - Desvignes, G.

AU - Hessels, J. W.T.

AU - Jenet, F. A.

AU - Kaspi, V. M.

AU - Knispel, B.

AU - Kramer, M.

AU - Lazarus, P.

AU - Van Leeuwen, J.

AU - Lorimer, D. R.

AU - Lynch, R. S.

AU - McLaughlin, M. A.

AU - Scholz, P.

AU - Siemens, X.

AU - Stappers, B. W.

AU - Stovall, K.

AU - Venkataraman, A.

PY - 2012/9/20

Y1 - 2012/9/20

N2 - 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 4.87ms, and PSR J1949+3106 has a period of 13.14ms and is in a 1.9day binary system with a massive companion. Their timing solutions, based on 4years 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 +1.6deg, 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.

AB - 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 4.87ms, and PSR J1949+3106 has a period of 13.14ms and is in a 1.9day binary system with a massive companion. Their timing solutions, based on 4years 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 +1.6deg, 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.

KW - Pulsars: general

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