Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey

Research output: Contribution to journal › Review article › Research › peer review

Authors

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

Research Organisations

External Research Organisations

  • Franklin and Marshall College, Lancaster
  • University of Texas at Brownsville
  • University of Texas at San Antonio
  • University of Manchester
  • Lafayette College
  • University of British Columbia
  • McGill University
  • Max Planck Institute for Radio Astronomy (MPIfR)
  • Netherlands Institute for Radio Astronomy (ASTRON)
  • University of Amsterdam
  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
  • University of Wisconsin Milwaukee
  • Swinburne University of Technology
  • Columbia University
  • Cornell University
  • West Virginia University
  • National Radio Astronomy Observatory Socorro
  • Arecibo Observatory
  • Universite d'Orleans
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Details

Original languageEnglish
Article number90
Number of pages10
JournalAstrophysical Journal
Volume757
Issue number1
Early online date6 Sept 2012
Publication statusPublished - 20 Sept 2012

Abstract

We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1900+0308, and J1944+2236. Three of the four pulsars are in binary systems with low-mass companions, which are most likely white dwarfs, and which have orbital periods on the order of days. The fourth pulsar is isolated. All four pulsars have large dispersion measures (DM >100 pccm-3), are distant (≳ 3.4kpc), faint at 1.4GHz (≲ 0.2mJy), and are fully recycled (with spin periods P between 3.5 and 4.9ms). The three binaries also have very small orbital eccentricities, as expected for tidally circularized, fully recycled systems with low-mass companions. These four pulsars have DM/P ratios that are among the highest values for field MSPs in the Galaxy. These discoveries bring the total number of confirmed MSPs from the PALFA survey to 15. The discovery of these MSPs illustrates the power of PALFA for finding weak, distant MSPs at low-Galactic latitudes. This is important for accurate estimates of the Galactic MSP population and for the number of MSPs that the Square Kilometer Array can be expected to detect.

Keywords

    pulsars: general, surveys

ASJC Scopus subject areas

Cite this

Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey. / Crawford, F.; Stovall, K.; Lyne, A. G. et al.
In: Astrophysical Journal, Vol. 757, No. 1, 90, 20.09.2012.

Research output: Contribution to journal › Review article › Research › peer review

Crawford, F, Stovall, K, Lyne, AG, Stappers, BW, Nice, DJ, Stairs, IH, Lazarus, P, Hessels, JWT, Freire, PCC, Allen, B, Bhat, NDR, Bogdanov, S, Brazier, A, Camilo, F, Champion, DJ, Chatterjee, S, Cognard, I, Cordes, JM, Deneva, JS, Desvignes, G, Jenet, FA, Kaspi, VM, Knispel, B, Kramer, M, Van Leeuwen, J, Lorimer, DR, Lynch, R, McLaughlin, MA, Ransom, SM, Scholz, P, Siemens, X & Venkataraman, A 2012, 'Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey', Astrophysical Journal, vol. 757, no. 1, 90. https://doi.org/10.48550/arXiv.1208.1273, https://doi.org/10.1088/0004-637X/757/1/90
Crawford, F., Stovall, K., Lyne, A. G., Stappers, B. W., Nice, D. J., Stairs, I. H., Lazarus, P., Hessels, J. W. T., Freire, P. C. C., Allen, B., Bhat, N. D. R., Bogdanov, S., Brazier, A., Camilo, F., Champion, D. J., Chatterjee, S., Cognard, I., Cordes, J. M., Deneva, J. S., ... Venkataraman, A. (2012). Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey. Astrophysical Journal, 757(1), Article 90. https://doi.org/10.48550/arXiv.1208.1273, https://doi.org/10.1088/0004-637X/757/1/90
Crawford F, Stovall K, Lyne AG, Stappers BW, Nice DJ, Stairs IH et al. Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey. Astrophysical Journal. 2012 Sept 20;757(1):90. Epub 2012 Sept 6. doi: 10.48550/arXiv.1208.1273, 10.1088/0004-637X/757/1/90
Crawford, F. ; Stovall, K. ; Lyne, A. G. et al. / Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey. In: Astrophysical Journal. 2012 ; Vol. 757, No. 1.
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title = "Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey",
abstract = "We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1900+0308, and J1944+2236. Three of the four pulsars are in binary systems with low-mass companions, which are most likely white dwarfs, and which have orbital periods on the order of days. The fourth pulsar is isolated. All four pulsars have large dispersion measures (DM >100 pccm-3), are distant (≳ 3.4kpc), faint at 1.4GHz (≲ 0.2mJy), and are fully recycled (with spin periods P between 3.5 and 4.9ms). The three binaries also have very small orbital eccentricities, as expected for tidally circularized, fully recycled systems with low-mass companions. These four pulsars have DM/P ratios that are among the highest values for field MSPs in the Galaxy. These discoveries bring the total number of confirmed MSPs from the PALFA survey to 15. The discovery of these MSPs illustrates the power of PALFA for finding weak, distant MSPs at low-Galactic latitudes. This is important for accurate estimates of the Galactic MSP population and for the number of MSPs that the Square Kilometer Array can be expected to detect.",
keywords = "pulsars: general, surveys",
author = "F. Crawford and K. Stovall and Lyne, {A. G.} and Stappers, {B. W.} and Nice, {D. J.} and Stairs, {I. H.} and P. Lazarus and Hessels, {J. W.T.} and Freire, {P. C.C.} and B. Allen and Bhat, {N. D.R.} and S. Bogdanov and A. Brazier and F. Camilo and Champion, {D. J.} and S. Chatterjee and I. Cognard and Cordes, {J. M.} and Deneva, {J. S.} and G. Desvignes and Jenet, {F. A.} and Kaspi, {V. M.} and B. Knispel and M. Kramer and {Van Leeuwen}, J. and Lorimer, {D. R.} and R. Lynch and McLaughlin, {M. A.} and Ransom, {S. M.} and P. Scholz and X. Siemens and A. Venkataraman",
note = "The Arecibo observatory is operated by SRI International under cooperative agreement with the National Science Foundation (AST-1100968) and in alliance with Ana G. MendezUniversidad Metropolitana, and the Universities Space Research Association. This work was also supported by NSF grant AST0807151, by NSERC Discovery Grants, by FQRNT via the Centre de Recherche Astrophysique du Quebec, by CIFAR, by CANARIE, by Compute Canada, by the Canada Foundation for Innovation, and a Killam Research Fellowship. V.M.K. holds the Lorne Trottier Chair in Astrophysics and Cosmology and a Canadian Research Chair in Observational Astrophysics. J.W.T.H. acknowledges funding from an NWO Veni Fellowship. B.K. gratefully acknowledges the support of the Max Planck Society. P.L. was partly funded by an NSERC PGS scholarship and an IMPRS fellowship. P.F. gratefully acknowledges the financial support by the European Research Council for the ERC Starting Grant BEACON under contract No. 279702.",
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Download

TY - JOUR

T1 - Four highly dispersed millisecond pulsars discovered in the arecibo palfa galactic plane survey

AU - Crawford, F.

AU - Stovall, K.

AU - Lyne, A. G.

AU - Stappers, B. W.

AU - Nice, D. J.

AU - Stairs, I. H.

AU - Lazarus, P.

AU - Hessels, J. W.T.

AU - Freire, P. C.C.

AU - Allen, B.

AU - Bhat, N. D.R.

AU - Bogdanov, S.

AU - Brazier, A.

AU - Camilo, F.

AU - Champion, D. J.

AU - Chatterjee, S.

AU - Cognard, I.

AU - Cordes, J. M.

AU - Deneva, J. S.

AU - Desvignes, G.

AU - Jenet, F. A.

AU - Kaspi, V. M.

AU - Knispel, B.

AU - Kramer, M.

AU - Van Leeuwen, J.

AU - Lorimer, D. R.

AU - Lynch, R.

AU - McLaughlin, M. A.

AU - Ransom, S. M.

AU - Scholz, P.

AU - Siemens, X.

AU - Venkataraman, A.

N1 - The Arecibo observatory is operated by SRI International under cooperative agreement with the National Science Foundation (AST-1100968) and in alliance with Ana G. MendezUniversidad Metropolitana, and the Universities Space Research Association. This work was also supported by NSF grant AST0807151, by NSERC Discovery Grants, by FQRNT via the Centre de Recherche Astrophysique du Quebec, by CIFAR, by CANARIE, by Compute Canada, by the Canada Foundation for Innovation, and a Killam Research Fellowship. V.M.K. holds the Lorne Trottier Chair in Astrophysics and Cosmology and a Canadian Research Chair in Observational Astrophysics. J.W.T.H. acknowledges funding from an NWO Veni Fellowship. B.K. gratefully acknowledges the support of the Max Planck Society. P.L. was partly funded by an NSERC PGS scholarship and an IMPRS fellowship. P.F. gratefully acknowledges the financial support by the European Research Council for the ERC Starting Grant BEACON under contract No. 279702.

PY - 2012/9/20

Y1 - 2012/9/20

N2 - We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1900+0308, and J1944+2236. Three of the four pulsars are in binary systems with low-mass companions, which are most likely white dwarfs, and which have orbital periods on the order of days. The fourth pulsar is isolated. All four pulsars have large dispersion measures (DM >100 pccm-3), are distant (≳ 3.4kpc), faint at 1.4GHz (≲ 0.2mJy), and are fully recycled (with spin periods P between 3.5 and 4.9ms). The three binaries also have very small orbital eccentricities, as expected for tidally circularized, fully recycled systems with low-mass companions. These four pulsars have DM/P ratios that are among the highest values for field MSPs in the Galaxy. These discoveries bring the total number of confirmed MSPs from the PALFA survey to 15. The discovery of these MSPs illustrates the power of PALFA for finding weak, distant MSPs at low-Galactic latitudes. This is important for accurate estimates of the Galactic MSP population and for the number of MSPs that the Square Kilometer Array can be expected to detect.

AB - We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1900+0308, and J1944+2236. Three of the four pulsars are in binary systems with low-mass companions, which are most likely white dwarfs, and which have orbital periods on the order of days. The fourth pulsar is isolated. All four pulsars have large dispersion measures (DM >100 pccm-3), are distant (≳ 3.4kpc), faint at 1.4GHz (≲ 0.2mJy), and are fully recycled (with spin periods P between 3.5 and 4.9ms). The three binaries also have very small orbital eccentricities, as expected for tidally circularized, fully recycled systems with low-mass companions. These four pulsars have DM/P ratios that are among the highest values for field MSPs in the Galaxy. These discoveries bring the total number of confirmed MSPs from the PALFA survey to 15. The discovery of these MSPs illustrates the power of PALFA for finding weak, distant MSPs at low-Galactic latitudes. This is important for accurate estimates of the Galactic MSP population and for the number of MSPs that the Square Kilometer Array can be expected to detect.

KW - pulsars: general

KW - surveys

UR - http://www.scopus.com/inward/record.url?scp=84866082101&partnerID=8YFLogxK

U2 - 10.48550/arXiv.1208.1273

DO - 10.48550/arXiv.1208.1273

M3 - Review article

AN - SCOPUS:84866082101

VL - 757

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 90

ER -