An eccentric binary millisecond pulsar in the galactic plane

David J. Champion; Scott M. Ransom; Patrick Lazarus; Fernando Camilo; Cees Bassa; Victoria M. Kaspi; David J. Nice; Paulo C C Freire; Ingrid H. Stairs; Joeri Van Leeuwen; Ben W. Stappers; James M. Cordes; Jason W T Hessels; Duncan R. Lorimer; Zaven Arzoumanian; Don C. Backer; N. D Ramesh Bhat; Shami Chatterjee; Ismaël Cognard; Julia S. Deneva; Claude André Faucher-Giguère; Bryan M. Gaensler; JinLin Han; Fredrick A. Jenet; Laura Kasian; Vlad I. Kondratiev; Michael Kramer; Joseph Lazio; Maura A. McLaughlin; Arun Venkataraman; Wouter Vlemmings

doi:10.1126/science.1157580

An eccentric binary millisecond pulsar in the galactic plane

David J. Champion, Scott M. Ransom, Patrick Lazarus, Fernando Camilo, Cees Bassa, Victoria M. Kaspi, David J. Nice, Paulo C C Freire, Ingrid H. Stairs, Joeri Van Leeuwen, Ben W. Stappers, James M. Cordes, Jason W T Hessels, Duncan R. Lorimer, Zaven Arzoumanian, Don C. Backer, N. D Ramesh Bhat, Shami Chatterjee, Ismaël Cognard, Julia S. DenevaClaude André Faucher-Giguère, Bryan M. Gaensler, JinLin Han, Fredrick A. Jenet, Laura Kasian, Vlad I. Kondratiev, Michael Kramer, Joseph Lazio, Maura A. McLaughlin, Arun Venkataraman, Wouter Vlemmings

Physics and Astronomy

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Abstract

Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 milliseconds in a highly eccentric (e = 0.44) 95-day orbit around a solar mass (M_Fisheye) companion. Infrared observations identify a possible main-sequence companion star. Conventional binary stellar evolution models predict neither large orbital eccentricities nor main-sequence companions around millisecond pulsars. Alternative formation scenarios involve recycling a neutron star in a globular cluster, then ejecting it into the Galactic disk, or membership in a hierarchical triple system. A relativistic analysis of timing observations of the pulsar finds its mass to be 1.74 ± 0.04 M _Fisheye, an unusually high value.

Original language	English (US)
Pages (from-to)	1309-1312
Number of pages	4
Journal	Science
Volume	320
Issue number	5881
DOIs	https://doi.org/10.1126/science.1157580
State	Published - Jun 6 2008

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Champion, D. J., Ransom, S. M., Lazarus, P., Camilo, F., Bassa, C., Kaspi, V. M., Nice, D. J., Freire, P. C. C., Stairs, I. H., Van Leeuwen, J., Stappers, B. W., Cordes, J. M., Hessels, J. W. T., Lorimer, D. R., Arzoumanian, Z., Backer, D. C., Bhat, N. D. R., Chatterjee, S., Cognard, I., ... Vlemmings, W. (2008). An eccentric binary millisecond pulsar in the galactic plane. Science, 320(5881), 1309-1312. https://doi.org/10.1126/science.1157580

@article{d4648b5f51a64f2c9771b3524c4aad95,

title = "An eccentric binary millisecond pulsar in the galactic plane",

abstract = "Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 milliseconds in a highly eccentric (e = 0.44) 95-day orbit around a solar mass (MFisheye) companion. Infrared observations identify a possible main-sequence companion star. Conventional binary stellar evolution models predict neither large orbital eccentricities nor main-sequence companions around millisecond pulsars. Alternative formation scenarios involve recycling a neutron star in a globular cluster, then ejecting it into the Galactic disk, or membership in a hierarchical triple system. A relativistic analysis of timing observations of the pulsar finds its mass to be 1.74 ± 0.04 M Fisheye, an unusually high value.",

author = "Champion, {David J.} and Ransom, {Scott M.} and Patrick Lazarus and Fernando Camilo and Cees Bassa and Kaspi, {Victoria M.} and Nice, {David J.} and Freire, {Paulo C C} and Stairs, {Ingrid H.} and {Van Leeuwen}, Joeri and Stappers, {Ben W.} and Cordes, {James M.} and Hessels, {Jason W T} and Lorimer, {Duncan R.} and Zaven Arzoumanian and Backer, {Don C.} and Bhat, {N. D Ramesh} and Shami Chatterjee and Isma{\"e}l Cognard and Deneva, {Julia S.} and Faucher-Gigu{\`e}re, {Claude Andr{\'e}} and Gaensler, {Bryan M.} and JinLin Han and Jenet, {Fredrick A.} and Laura Kasian and Kondratiev, {Vlad I.} and Michael Kramer and Joseph Lazio and McLaughlin, {Maura A.} and Arun Venkataraman and Wouter Vlemmings",

year = "2008",

month = jun,

day = "6",

doi = "10.1126/science.1157580",

language = "English (US)",

volume = "320",

pages = "1309--1312",

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Champion, DJ, Ransom, SM, Lazarus, P, Camilo, F, Bassa, C, Kaspi, VM, Nice, DJ, Freire, PCC, Stairs, IH, Van Leeuwen, J, Stappers, BW, Cordes, JM, Hessels, JWT, Lorimer, DR, Arzoumanian, Z, Backer, DC, Bhat, NDR, Chatterjee, S, Cognard, I, Deneva, JS, Faucher-Giguère, CA, Gaensler, BM, Han, J, Jenet, FA, Kasian, L, Kondratiev, VI, Kramer, M, Lazio, J, McLaughlin, MA, Venkataraman, A & Vlemmings, W 2008, 'An eccentric binary millisecond pulsar in the galactic plane', Science, vol. 320, no. 5881, pp. 1309-1312. https://doi.org/10.1126/science.1157580

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T1 - An eccentric binary millisecond pulsar in the galactic plane

AU - Champion, David J.

AU - Ransom, Scott M.

AU - Lazarus, Patrick

AU - Camilo, Fernando

AU - Bassa, Cees

AU - Kaspi, Victoria M.

AU - Nice, David J.

AU - Freire, Paulo C C

AU - Stairs, Ingrid H.

AU - Van Leeuwen, Joeri

AU - Stappers, Ben W.

AU - Cordes, James M.

AU - Hessels, Jason W T

AU - Lorimer, Duncan R.

AU - Arzoumanian, Zaven

AU - Backer, Don C.

AU - Bhat, N. D Ramesh

AU - Chatterjee, Shami

AU - Cognard, Ismaël

AU - Deneva, Julia S.

AU - Faucher-Giguère, Claude André

AU - Gaensler, Bryan M.

AU - Han, JinLin

AU - Jenet, Fredrick A.

AU - Kasian, Laura

AU - Kondratiev, Vlad I.

AU - Kramer, Michael

AU - Lazio, Joseph

AU - McLaughlin, Maura A.

AU - Venkataraman, Arun

AU - Vlemmings, Wouter

PY - 2008/6/6

Y1 - 2008/6/6

N2 - Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 milliseconds in a highly eccentric (e = 0.44) 95-day orbit around a solar mass (MFisheye) companion. Infrared observations identify a possible main-sequence companion star. Conventional binary stellar evolution models predict neither large orbital eccentricities nor main-sequence companions around millisecond pulsars. Alternative formation scenarios involve recycling a neutron star in a globular cluster, then ejecting it into the Galactic disk, or membership in a hierarchical triple system. A relativistic analysis of timing observations of the pulsar finds its mass to be 1.74 ± 0.04 M Fisheye, an unusually high value.

AB - Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 milliseconds in a highly eccentric (e = 0.44) 95-day orbit around a solar mass (MFisheye) companion. Infrared observations identify a possible main-sequence companion star. Conventional binary stellar evolution models predict neither large orbital eccentricities nor main-sequence companions around millisecond pulsars. Alternative formation scenarios involve recycling a neutron star in a globular cluster, then ejecting it into the Galactic disk, or membership in a hierarchical triple system. A relativistic analysis of timing observations of the pulsar finds its mass to be 1.74 ± 0.04 M Fisheye, an unusually high value.

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VL - 320

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JO - Science

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An eccentric binary millisecond pulsar in the galactic plane

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