skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: DISCOVERY OF NINE GAMMA-RAY PULSARS IN FERMI LARGE AREA TELESCOPE DATA USING A NEW BLIND SEARCH METHOD

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 12 Hz, and characteristic ages ranging from 17 kyr to 3 Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 Multiplication-Sign 10{sup 35} erg s{sup -1} and ages below 100 kyr). 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 Degree-Sign ). PSR J0106+4855 has the largest characteristic age (3 Myr) and the smallest surface magnetic field (2 Multiplication-Sign 10{sup 11} G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowestmore » spin-down power (3 Multiplication-Sign 10{sup 33} erg s{sup -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.« less

Authors:
; ; ;  [1]; ; ; ; ; ;  [2];  [3]; ;  [4];  [5];  [6]; ;  [7];  [8];  [9];  [10] more »; « less
  1. Albert-Einstein-Institut, Max-Planck-Institut fuer Gravitationsphysik, D-30167 Hannover (Germany)
  2. Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany)
  3. Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352 (United States)
  4. Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)
  5. Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
  6. INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica, I-20133 Milano (Italy)
  7. NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
  8. Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Postbus 94249, 1090 GE Amsterdam (Netherlands)
  9. CSIRO Astronomy and Space Science, Australia Telescope National Facility, Epping NSW 1710 (Australia)
  10. W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
Publication Date:
OSTI Identifier:
22004254
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 744; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; GAMMA RADIATION; GRAVITATIONAL WAVES; MAGNETIC FIELDS; NEUTRON STARS; PROBABILITY; PULSARS; PULSATIONS; TELESCOPES

Citation Formats

Pletsch, H J, Allen, B, Aulbert, C, Fehrmann, H, Guillemot, L, Kramer, M, Barr, E D, Champion, D J, Eatough, R P, Freire, P C. C., Ray, P S, Belfiore, A, Dormody, M, Camilo, F, Caraveo, P A, Celik, Oe, Ferrara, E C, Hessels, J W. T., Keith, M, Kerr, M, and others, and. DISCOVERY OF NINE GAMMA-RAY PULSARS IN FERMI LARGE AREA TELESCOPE DATA USING A NEW BLIND SEARCH METHOD. United States: N. p., 2012. Web. doi:10.1088/0004-637X/744/2/105.
Pletsch, H J, Allen, B, Aulbert, C, Fehrmann, H, Guillemot, L, Kramer, M, Barr, E D, Champion, D J, Eatough, R P, Freire, P C. C., Ray, P S, Belfiore, A, Dormody, M, Camilo, F, Caraveo, P A, Celik, Oe, Ferrara, E C, Hessels, J W. T., Keith, M, Kerr, M, & others, and. DISCOVERY OF NINE GAMMA-RAY PULSARS IN FERMI LARGE AREA TELESCOPE DATA USING A NEW BLIND SEARCH METHOD. United States. doi:10.1088/0004-637X/744/2/105.
Pletsch, H J, Allen, B, Aulbert, C, Fehrmann, H, Guillemot, L, Kramer, M, Barr, E D, Champion, D J, Eatough, R P, Freire, P C. C., Ray, P S, Belfiore, A, Dormody, M, Camilo, F, Caraveo, P A, Celik, Oe, Ferrara, E C, Hessels, J W. T., Keith, M, Kerr, M, and others, and. Tue . "DISCOVERY OF NINE GAMMA-RAY PULSARS IN FERMI LARGE AREA TELESCOPE DATA USING A NEW BLIND SEARCH METHOD". United States. doi:10.1088/0004-637X/744/2/105.
@article{osti_22004254,
title = {DISCOVERY OF NINE GAMMA-RAY PULSARS IN FERMI LARGE AREA TELESCOPE DATA USING A NEW BLIND SEARCH METHOD},
author = {Pletsch, H J and Allen, B and Aulbert, C and Fehrmann, H and Guillemot, L and Kramer, M and Barr, E D and Champion, D J and Eatough, R P and Freire, P C. C. and Ray, P S and Belfiore, A and Dormody, M and Camilo, F and Caraveo, P A and Celik, Oe and Ferrara, E C and Hessels, J W. T. and Keith, M and Kerr, M and others, and},
abstractNote = {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 12 Hz, and characteristic ages ranging from 17 kyr to 3 Myr. Two of them, PSRs J1803-2149 and J2111+ 4606, are young and energetic Galactic-plane pulsars (spin-down power above 6 Multiplication-Sign 10{sup 35} erg s{sup -1} and ages below 100 kyr). 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 Degree-Sign ). PSR J0106+4855 has the largest characteristic age (3 Myr) and the smallest surface magnetic field (2 Multiplication-Sign 10{sup 11} G) of all LAT blind-search pulsars. PSR J2139+4716 has the lowest spin-down power (3 Multiplication-Sign 10{sup 33} erg s{sup -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.},
doi = {10.1088/0004-637X/744/2/105},
journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 744,
place = {United States},
year = {2012},
month = {1}
}

Works referenced in this record:

The Measurement of Power Spectra from the Point of View of Communications Engineering - Part II
journal, March 1958


The on-orbit calibration of the Fermi Large Area Telescope
journal, October 2009


The Rhodes/HartRAO 2326-MHz radio continuum survey
journal, July 1998


First AGILE catalog of high-confidence gamma-ray sources
journal, September 2009


The H-test probability distribution revisited: improved sensitivity
journal, July 2010


PSRs J0248+6021 and J2240+5832: young pulsars in the northern Galactic plane: Discovery, timing, and gamma-ray observations
journal, December 2010


A radio continuum survey of the southern sky at 1420 MHz: The atlas of contour maps
journal, September 2001


A 350-MHz GBT Survey of 50 Faint Fermi γ-ray Sources for Radio Millisecond Pulsars
conference, January 2011

  • Hessels, J. W. T.; Roberts, M. S. E.; McLaughlin, M. A.
  • RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE, AIP Conference Proceedings
  • DOI: 10.1063/1.3615072

Molecular clouds and cloud cores in the inner Galaxy
journal, February 1987

  • Scoville, N. Z.; Yun, Min Su; Sanders, D. B.
  • The Astrophysical Journal Supplement Series, Vol. 63
  • DOI: 10.1086/191185

The NRAO VLA Sky Survey
journal, May 1998

  • Condon, J. J.; Cotton, W. D.; Greisen, E. W.
  • The Astronomical Journal, Vol. 115, Issue 5
  • DOI: 10.1086/300337

The Third EGRET Catalog of High‐Energy Gamma‐Ray Sources
journal, July 1999

  • Hartman, R. C.; Bertsch, D. L.; Bloom, S. D.
  • The Astrophysical Journal Supplement Series, Vol. 123, Issue 1
  • DOI: 10.1086/313231

A Search for Radio‐quiet Gamma‐Ray Pulsars
journal, July 2001

  • Chandler, A. M.; Koh, D. T.; Lamb, R. C.
  • The Astrophysical Journal, Vol. 556, Issue 1
  • DOI: 10.1086/321573

Fourier Techniques for Very Long Astrophysical Time-Series Analysis
journal, September 2002

  • Ransom, Scott M.; Eikenberry, Stephen S.; Middleditch, John
  • The Astronomical Journal, Vol. 124, Issue 3
  • DOI: 10.1086/342285

The Australia Telescope National Facility Pulsar Catalogue
journal, April 2005

  • Manchester, R. N.; Hobbs, G. B.; Teoh, A.
  • The Astronomical Journal, Vol. 129, Issue 4
  • DOI: 10.1086/428488

The Southern Galactic Plane Survey: Polarized Radio Continuum Observations and Analysis
journal, December 2006

  • Haverkorn, M.; Gaensler, B. M.; McClure‐Griffiths, N. M.
  • The Astrophysical Journal Supplement Series, Vol. 167, Issue 2
  • DOI: 10.1086/508467

The Electron Temperature Gradient in the Galactic Disk
journal, December 2006

  • Quireza, Cintia; Rood, Robert T.; Bania, T. M.
  • The Astrophysical Journal, Vol. 653, Issue 2
  • DOI: 10.1086/508803

A Time-differencing Technique for Detecting Radio-quiet Gamma-Ray Pulsars
journal, November 2006

  • Atwood, W. B.; Ziegler, M.; Johnson, R. P.
  • The Astrophysical Journal, Vol. 652, Issue 1
  • DOI: 10.1086/510018

A Search for Radio‐Quiet Gamma‐Ray Pulsars in EGRET Data Using a Time‐Differencing Technique
journal, June 2008

  • Ziegler, M.; Baughman, B. M.; Johnson, R. P.
  • The Astrophysical Journal, Vol. 680, Issue 1
  • DOI: 10.1086/587024

Event‐Weighted Tests for Detecting Periodicity in Photon Arrival Times
journal, September 2008

  • Bickel, Peter; Kleijn, Bas; Rice, John
  • The Astrophysical Journal, Vol. 685, Issue 1
  • DOI: 10.1086/590399

An Atlas for Interpreting γ-Ray Pulsar Light Curves
journal, April 2009


THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009


RADIO DETECTION OF LAT PSRs J1741-2054 AND J2032+4127: NO LONGER JUST GAMMA-RAY PULSARS
journal, October 2009


PSR J1907+0602: A RADIO-FAINT GAMMA-RAY PULSAR POWERING A BRIGHT TeV PULSAR WIND NEBULA
journal, February 2010


EIGHT γ-RAY PULSARS DISCOVERED IN BLIND FREQUENCY SEARCHES OF FERMI LAT DATA
journal, November 2010


Improving Sensitivity to weak Pulsations with Photon Probability Weighting
journal, April 2011


DISCOVERY OF TWO MILLISECOND PULSARS IN FERMI SOURCES WITH THE NANÇAY RADIO TELESCOPE
journal, April 2011


Discovery of a Faint X-Ray Counterpart and a Parsec-Long X-Ray tail for the Middle-Aged, γ-Ray-Only Pulsar psr J0357+3205
journal, May 2011


A MULTIWAVELENGTH STUDY ON THE HIGH-ENERGY BEHAVIOR OF THE FERMI /LAT PULSARS
journal, May 2011

  • Marelli, Martino; Luca, Andrea De; Caraveo, Patrizia A.
  • The Astrophysical Journal, Vol. 733, Issue 2
  • DOI: 10.1088/0004-637x/733/2/82

FERMI /LARGE AREA TELESCOPE BRIGHT GAMMA-RAY SOURCE LIST
journal, June 2009

  • Abdo, A. A.; Ackermann, M.; Ajello, M.
  • The Astrophysical Journal Supplement Series, Vol. 183, Issue 1
  • DOI: 10.1088/0067-0049/183/1/46

THE FIRST FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS
journal, March 2010

  • Abdo, A. A.; Ackermann, M.; Ajello, M.
  • The Astrophysical Journal Supplement Series, Vol. 187, Issue 2
  • DOI: 10.1088/0067-0049/187/2/460

FERMI LARGE AREA TELESCOPE FIRST SOURCE CATALOG
journal, May 2010

  • Abdo, A. A.; Ackermann, M.; Ajello, M.
  • The Astrophysical Journal Supplement Series, Vol. 188, Issue 2
  • DOI: 10.1088/0067-0049/188/2/405

PRECISE γ-RAY TIMING AND RADIO OBSERVATIONS OF 17 FERMI γ-RAY PULSARS
journal, April 2011


Template-based searches for gravitational waves: efficient lattice covering of flat parameter spaces
journal, September 2007


THREE MILLISECOND PULSARS IN FERMI LAT UNASSOCIATED BRIGHT SOURCES
journal, December 2010


The MOST Galactic Center Survey - III. Images of new candidate supernova remnants
journal, October 1994


Gravitational waves from coalescing binaries: Detection strategies and Monte Carlo estimation of parameters
journal, March 1996

  • Balasubramanian, R.; Sathyaprakash, B. S.; Dhurandhar, S. V.
  • Physical Review D, Vol. 53, Issue 6
  • DOI: 10.1103/physrevd.53.3033

Search templates for gravitational waves from inspiraling binaries: Choice of template spacing
journal, June 1996


Searching for periodic sources with LIGO
journal, February 1998


Searching for periodic sources with LIGO. II. Hierarchical searches
journal, February 2000


Data analysis of gravitational-wave signals from spinning neutron stars. IV. An all-sky search
journal, January 2002


Hough transform search for continuous gravitational waves
journal, October 2004


Improved stack-slide searches for gravitational-wave pulsars
journal, August 2005


Einstein@Home search for periodic gravitational waves in LIGO S4 data
journal, January 2009


Einstein@Home search for periodic gravitational waves in early S5 LIGO data
journal, August 2009


Implementation of barycentric resampling for continuous wave searches in gravitational wave data
journal, April 2010


Parameter-space metric of semicoherent searches for continuous gravitational waves
journal, August 2010


Sliding coherence window technique for hierarchical detection of continuous gravitational waves
journal, June 2011


Exploiting Large-Scale Correlations to Detect Continuous Gravitational Waves
journal, October 2009


tempo2, a new pulsar-timing package - I. An overview: tempo2, a new pulsar-timing package - I. Overview
journal, May 2006


Discovery of millisecond pulsars in radio searches of southern Fermi Large Area Telescope sources: Discovery of pulsars in Fermi LAT sources
journal, March 2011


The Fermi Gamma-Ray Space Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1
journal, November 2008


Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
journal, July 2009


Pulsar Discovery by Global Volunteer Computing: Fig. 1
journal, August 2010


    Works referencing / citing this record:

    A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra
    journal, June 2016


    Pulsed radio emission from the Fermi -LAT pulsar J1732−3131: search and a possible detection at 34.5 MHz : Periodic radio pulses from J1732−3131
    journal, August 2012

    • Maan, Yogesh; Aswathappa, H. A.; Deshpande, Avinash A.
    • Monthly Notices of the Royal Astronomical Society, Vol. 425, Issue 1
    • DOI: 10.1111/j.1365-2966.2012.20608.x

    the Einstein@Home Search for Radio Pulsars and psr J2007+2722 Discovery
    journal, July 2013


    PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT
    journal, October 2013


    Pulsar Searching and Timing
    journal, January 2013


    A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra
    journal, June 2016


    the Einstein@Home Search for Radio Pulsars and psr J2007+2722 Discovery
    journal, July 2013


    PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT
    journal, October 2013


    Pulsed radio emission from the Fermi -LAT pulsar J1732−3131: search and a possible detection at 34.5 MHz : Periodic radio pulses from J1732−3131
    journal, August 2012

    • Maan, Yogesh; Aswathappa, H. A.; Deshpande, Avinash A.
    • Monthly Notices of the Royal Astronomical Society, Vol. 425, Issue 1
    • DOI: 10.1111/j.1365-2966.2012.20608.x

    Pulsar Searching and Timing
    journal, January 2013


    Dense matter with eXTP
    journal, August 2018

    • Watts, Anna L.; Yu, WenFei; Poutanen, Juri
    • Science China Physics, Mechanics & Astronomy, Vol. 62, Issue 2
    • DOI: 10.1007/s11433-017-9188-4

    The neutron star zoo
    journal, February 2013


    Systematic search for very-high-energy gamma-ray emission from bow shocks of runaway stars
    journal, April 2018


    A Survey for hα Pulsar bow Shocks
    journal, March 2014


    Optimized Blind Gamma-Ray Pulsar Searches at Fixed Computing Budget
    journal, October 2014


    PARKES RADIO SEARCHES OF FERMI GAMMA-RAY SOURCES AND MILLISECOND PULSAR DISCOVERIES
    journal, September 2015


    CHANDRA PULSAR SURVEY (ChaPS)
    journal, August 2012

    • Kargaltsev, Oleg; Durant, Martin; Pavlov, George G.
    • The Astrophysical Journal Supplement Series, Vol. 201, Issue 2
    • DOI: 10.1088/0067-0049/201/2/37

    THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS
    journal, September 2013

    • Abdo, A. A.; Ajello, M.; Allafort, A.
    • The Astrophysical Journal Supplement Series, Vol. 208, Issue 2
    • DOI: 10.1088/0067-0049/208/2/17

    REFINING THE ASSOCIATIONS OF THE FERMI LARGE AREA TELESCOPE SOURCE CATALOGS
    journal, February 2015

    • Massaro, F.; D’Abrusco, R.; Landoni, M.
    • The Astrophysical Journal Supplement Series, Vol. 217, Issue 1
    • DOI: 10.1088/0067-0049/217/1/2

    New Associations of Gamma-Ray Sources from the Fermi Second Source Catalog
    journal, February 2015

    • Schinzel, Frank K.; Petrov, Leonid; Taylor, Gregory B.
    • The Astrophysical Journal Supplement Series, Vol. 217, Issue 1
    • DOI: 10.1088/0067-0049/217/1/4

    Examining The Fermi-LAT Third Source Catalog in search of dark matter subhalos
    journal, December 2015

    • Bertoni, Bridget; Hooper, Dan; Linden, Tim
    • Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 12
    • DOI: 10.1088/1475-7516/2015/12/035

    Spherical ansatz for parameter-space metrics
    journal, December 2019


    Colloquium : Measuring the neutron star equation of state using x-ray timing
    journal, April 2016


    Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
    journal, February 2018

    • Clark, Colin J.; Pletsch, Holger J.; Wu, Jason
    • Science Advances, Vol. 4, Issue 2
    • DOI: 10.1126/sciadv.aao7228

    High Energy Radiation from Spider Pulsars
    journal, December 2019


    The Einstein@Home Gamma-Ray Pulsar Survey. i. Search Methods, Sensitivity, and Discovery of new Young Gamma-Ray Pulsars
    journal, January 2017


    The Einstein@Home Gamma-ray Pulsar Survey. II. Source Selection, Spectral Analysis, and Multiwavelength Follow-up
    journal, February 2018