Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method

Research output: Contribution to journal › Article › Research › peer review

Authors

  • H. J. Pletsch
  • L. Guillemot
  • B. Allen
  • M. Kramer
  • C. Aulbert
  • H. Fehrmann
  • P. S. Ray
  • E. D. Barr
  • A. Belfiore
  • F. Camilo
  • P. A. Caraveo
  • Ö Çelik
  • D. J. Champion
  • M. Dormody
  • R. P. Eatough
  • E. C. Ferrara
  • P. C.C. Freire
  • J. W.T. Hessels
  • M. Keith
  • M. Kerr
  • A. De Luca
  • A. G. Lyne
  • M. Marelli
  • M. A. McLaughlin
  • D. Parent
  • S. M. Ransom
  • M. Razzano
  • W. Reich
  • P. M. Saz Parkinson
  • B. W. Stappers
  • M. T. Wolff

Research Organisations

External Research Organisations

  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
  • Max Planck Institute for Radio Astronomy (MPIfR)
  • University of Manchester
  • U.S. Naval Research Laboratory (NRL)
  • University of California at Santa Cruz
  • University of Pavia
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna
  • Columbia University
  • NASA Goddard Space Flight Center (NASA-GSFC)
  • University of Maryland Baltimore County
  • University of Amsterdam
  • Netherlands Institute for Radio Astronomy (ASTRON)
  • Commonwealth Scientific and Industrial Research Organisation (CSIRO)
  • Stanford University
  • Istituto Universitario di Studi Superiori (IUSS)
  • West Virginia University
  • George Mason University
  • National Radio Astronomy Observatory Socorro
  • Sezione di Pisa
  • University of Wisconsin Milwaukee
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Details

Original languageEnglish
Article number105
Number of pages20
JournalAstrophysical Journal
Volume744
Issue number2
Early online date20 Dec 2011
Publication statusPublished - 10 Jan 2012

Abstract

We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at up to kHz frequencies, the new method is computationally efficient and incorporates several advances, including a metric-based gridding of the search parameter space (frequency, frequency derivative, and sky location) and the use of photon probability weights. The nine pulsars have spin frequencies between 3 and 12Hz, and characteristic ages ranging from 17kyr to 3Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 × 1035ergs-1 and ages below 100kyr). The seven remaining pulsars, PSRs J0106+4855, J0622+3749, J1620-4927, J1746-3239, J2028+3332, J2030+4415, and J2139+4716, are older and less energetic; two of them are located at higher Galactic latitudes (|b| > 10°). PSR J0106+4855 has the largest characteristic age (3Myr) and the smallest surface magnetic field (2 × 1011G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowest spin-down power (3 × 1033ergs-1) among all non-recycled gamma-ray pulsars ever found. Despite extensive multi-frequency observations, only PSR J0106+4855 has detectable pulsations in the radio band. The other eight pulsars belong to the increasing population of radio-quiet gamma-ray pulsars.

Keywords

    gamma rays: stars, PSR J1620-4927, PSR J1746-3239, PSR J1803-2149, pulsars: general

ASJC Scopus subject areas

Cite this

Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method. / Pletsch, H. J.; Guillemot, L.; Allen, B. et al.
In: Astrophysical Journal, Vol. 744, No. 2, 105, 10.01.2012.

Research output: Contribution to journal › Article › Research › peer review

Pletsch, HJ, Guillemot, L, Allen, B, Kramer, M, Aulbert, C, Fehrmann, H, Ray, PS, Barr, ED, Belfiore, A, Camilo, F, Caraveo, PA, Çelik, Ö, Champion, DJ, Dormody, M, Eatough, RP, Ferrara, EC, Freire, PCC, Hessels, JWT, Keith, M, Kerr, M, De Luca, A, Lyne, AG, Marelli, M, McLaughlin, MA, Parent, D, Ransom, SM, Razzano, M, Reich, W, Saz Parkinson, PM, Stappers, BW & Wolff, MT 2012, 'Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method', Astrophysical Journal, vol. 744, no. 2, 105. https://doi.org/10.48550/arXiv.1111.0523, https://doi.org/10.1088/0004-637X/744/2/105
Pletsch, H. J., Guillemot, L., Allen, B., Kramer, M., Aulbert, C., Fehrmann, H., Ray, P. S., Barr, E. D., Belfiore, A., Camilo, F., Caraveo, P. A., Çelik, Ö., Champion, D. J., Dormody, M., Eatough, R. P., Ferrara, E. C., Freire, P. C. C., Hessels, J. W. T., Keith, M., ... Wolff, M. T. (2012). Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method. Astrophysical Journal, 744(2), Article 105. https://doi.org/10.48550/arXiv.1111.0523, https://doi.org/10.1088/0004-637X/744/2/105
Pletsch HJ, Guillemot L, Allen B, Kramer M, Aulbert C, Fehrmann H et al. Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method. Astrophysical Journal. 2012 Jan 10;744(2):105. Epub 2011 Dec 20. doi: 10.48550/arXiv.1111.0523, 10.1088/0004-637X/744/2/105
Pletsch, H. J. ; Guillemot, L. ; Allen, B. et al. / Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method. In: Astrophysical Journal. 2012 ; Vol. 744, No. 2.
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abstract = "We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at up to kHz frequencies, the new method is computationally efficient and incorporates several advances, including a metric-based gridding of the search parameter space (frequency, frequency derivative, and sky location) and the use of photon probability weights. The nine pulsars have spin frequencies between 3 and 12Hz, and characteristic ages ranging from 17kyr to 3Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 × 1035ergs-1 and ages below 100kyr). The seven remaining pulsars, PSRs J0106+4855, J0622+3749, J1620-4927, J1746-3239, J2028+3332, J2030+4415, and J2139+4716, are older and less energetic; two of them are located at higher Galactic latitudes (|b| > 10°). PSR J0106+4855 has the largest characteristic age (3Myr) and the smallest surface magnetic field (2 × 1011G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowest spin-down power (3 × 1033ergs-1) among all non-recycled gamma-ray pulsars ever found. Despite extensive multi-frequency observations, only PSR J0106+4855 has detectable pulsations in the radio band. The other eight pulsars belong to the increasing population of radio-quiet gamma-ray pulsars.",
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T1 - Discovery of nine gamma-ray pulsars in Fermi Large Area Telescope data using a new blind search method

AU - Pletsch, H. J.

AU - Guillemot, L.

AU - Allen, B.

AU - Kramer, M.

AU - Aulbert, C.

AU - Fehrmann, H.

AU - Ray, P. S.

AU - Barr, E. D.

AU - Belfiore, A.

AU - Camilo, F.

AU - Caraveo, P. A.

AU - Çelik, Ö

AU - Champion, D. J.

AU - Dormody, M.

AU - Eatough, R. P.

AU - Ferrara, E. C.

AU - Freire, P. C.C.

AU - Hessels, J. W.T.

AU - Keith, M.

AU - Kerr, M.

AU - De Luca, A.

AU - Lyne, A. G.

AU - Marelli, M.

AU - McLaughlin, M. A.

AU - Parent, D.

AU - Ransom, S. M.

AU - Razzano, M.

AU - Reich, W.

AU - Saz Parkinson, P. M.

AU - Stappers, B. W.

AU - Wolff, M. T.

PY - 2012/1/10

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N2 - We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at up to kHz frequencies, the new method is computationally efficient and incorporates several advances, including a metric-based gridding of the search parameter space (frequency, frequency derivative, and sky location) and the use of photon probability weights. The nine pulsars have spin frequencies between 3 and 12Hz, and characteristic ages ranging from 17kyr to 3Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 × 1035ergs-1 and ages below 100kyr). The seven remaining pulsars, PSRs J0106+4855, J0622+3749, J1620-4927, J1746-3239, J2028+3332, J2030+4415, and J2139+4716, are older and less energetic; two of them are located at higher Galactic latitudes (|b| > 10°). PSR J0106+4855 has the largest characteristic age (3Myr) and the smallest surface magnetic field (2 × 1011G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowest spin-down power (3 × 1033ergs-1) among all non-recycled gamma-ray pulsars ever found. Despite extensive multi-frequency observations, only PSR J0106+4855 has detectable pulsations in the radio band. The other eight pulsars belong to the increasing population of radio-quiet gamma-ray pulsars.

AB - We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at up to kHz frequencies, the new method is computationally efficient and incorporates several advances, including a metric-based gridding of the search parameter space (frequency, frequency derivative, and sky location) and the use of photon probability weights. The nine pulsars have spin frequencies between 3 and 12Hz, and characteristic ages ranging from 17kyr to 3Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 × 1035ergs-1 and ages below 100kyr). The seven remaining pulsars, PSRs J0106+4855, J0622+3749, J1620-4927, J1746-3239, J2028+3332, J2030+4415, and J2139+4716, are older and less energetic; two of them are located at higher Galactic latitudes (|b| > 10°). PSR J0106+4855 has the largest characteristic age (3Myr) and the smallest surface magnetic field (2 × 1011G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowest spin-down power (3 × 1033ergs-1) among all non-recycled gamma-ray pulsars ever found. Despite extensive multi-frequency observations, only PSR J0106+4855 has detectable pulsations in the radio band. The other eight pulsars belong to the increasing population of radio-quiet gamma-ray pulsars.

KW - gamma rays: stars

KW - PSR J1620-4927

KW - PSR J1746-3239

KW - PSR J1803-2149

KW - pulsars: general

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JO - Astrophysical Journal

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