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

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

doi:10.1088/0004-637X/744/2/105

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

Journal Article · Tue Jan 10 04:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/744/2/105· OSTI ID:22004254

Pletsch, H J; Allen, B; Aulbert, C; Fehrmann, H ^[1]; Guillemot, L; Kramer, M; Barr, E D; Champion, D J; Eatough, R P; Freire, P C. C. ^[2]; Ray, P S ^[3]; Belfiore, A; Dormody, M ^[4]; Camilo, F ^[5]; Caraveo, P A ^[6]; Celik, Oe; Ferrara, E C ^[7]; Hessels, J W. T. ^[8]; Keith, M ^[9]; Kerr, M ^[10] more »

Albert-Einstein-Institut, Max-Planck-Institut fuer Gravitationsphysik, D-30167 Hannover (Germany)
Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany)
Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352 (United States)
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)
Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica, I-20133 Milano (Italy)
NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Postbus 94249, 1090 GE Amsterdam (Netherlands)
CSIRO Astronomy and Space Science, Australia Telescope National Facility, Epping NSW 1710 (Australia)
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)

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.

OSTI ID:: 22004254

Journal Information:: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 744; ISSN ASJOAB; ISSN 0004-637X

Country of Publication:: United States

Language:: English

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High Energy Radiation from Spider Pulsars Hui, Chung Yue; Li, Kwan Lok Galaxies, Vol. 7, Issue 4 https://doi.org/10.3390/galaxies7040093	journal	December 2019
The Einstein@Home Gamma-ray Pulsar Survey. II. Source Selection, Spectral Analysis, and Multiwavelength Follow-up Wu, J.; Clark, C. J.; Pletsch, H. J. The Astrophysical Journal, Vol. 854, Issue 2 https://doi.org/10.3847/1538-4357/aaa411	journal	February 2018
Optimized Blind Gamma-ray Pulsar Searches at Fixed Computing Budget Pletsch, Holger J.; Clark, Colin J. arXiv https://doi.org/10.48550/arxiv.1408.6962	text	January 2014
The Neutron Star Zoo Kaspi, Victoria M. Proceedings of the International Astronomical Union, Vol. 13, Issue S337 https://doi.org/10.1017/s1743921317010390	journal	September 2017
Systematic search for very-high-energy gamma-ray emission from bow shocks of runaway stars Abdalla, H.; Abramowski, A.; Aharonian, F. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-02031	text	January 2018
A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra Bilous, A.; Kondratiev, V.; Kramer, M. arXiv https://doi.org/10.48550/arxiv.1511.01767	text	January 2015
Systematic search for very-high-energy gamma-ray emission from bow shocks of runaway stars Collaboration, H. E. S. S.; Abdalla, H.; Abramowski, A. arXiv https://doi.org/10.48550/arxiv.1705.02263	text	January 2017
PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT Allafort, A.; Baldini, L.; Ballet, J. The Astrophysical Journal, Vol. 777, Issue 1 https://doi.org/10.1088/2041-8205/777/1/l2	journal	October 2013
Refining the associations of the Fermi Large Area Telescope Source Catalogs Massaro, F.; D'Abrusco, R.; Landoni, M. arXiv https://doi.org/10.48550/arxiv.1503.05556	text	January 2015
Spherical ansatz for parameter-space metrics Allen, Bruce Physical Review D, Vol. 100, Issue 12 https://doi.org/10.1103/physrevd.100.124004	journal	December 2019

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