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Title: Six millisecond pulsars detected by the Fermi Large Area Telescope and the radio/gamma-ray connection of millisecond pulsars

Journal Article · · Monthly Notices of the Royal Astronomical Society
DOI:https://doi.org/10.1093/mnras/sts657· OSTI ID:1356598

In this work, we report on the discovery of gamma-ray pulsations from five millisecond pulsars (MSPs) using the Fermi Large Area Telescope (LAT) and timing ephemerides provided by various radio observatories. We also present confirmation of the gamma-ray pulsations from a sixth source, PSR J2051-0827. Five of these six MSPs are in binary systems: PSRs J1713+0747, J1741+1351, J1600-3053 and the two black widow binary pulsars PSRs J0610-2100 and J2051-0827. The only isolated MSP is the nearby PSR J1024-0719, which is also known to emit X-rays. We present X-ray observations in the direction of PSRs J1600-3053 and J2051-0827. While PSR J2051-0827 is firmly detected, we can only give upper limits for the X-ray flux of PSR J1600-3053. There are no dedicated X-ray observations available for the other three objects. The MSPs mentioned above, together with most of the MSPs detected by Fermi, are used to put together a sample of 30 gamma-ray MSPs. This sample is used to study the morphology and phase connection of radio and gamma-ray pulse profiles. We show that MSPs with pulsed gamma-ray emission which is phase-aligned with the radio emission present the steepest radio spectra and the largest magnetic fields at the light cylinder among all MSPs. Also, we observe a trend towards very low, or undetectable, radio linear polarization levels. These properties could be attributed to caustic radio emission produced at a range of different altitudes in the magnetosphere. In conclusion, we note that most of these characteristics are also observed in the Crab pulsar, the only other radio pulsar known to exhibit phase-aligned radio and gamma-ray emission.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
Fermi-LAT Collaboration
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1356598
Journal Information:
Monthly Notices of the Royal Astronomical Society, Vol. 430, Issue 1; ISSN 0035-8711
Publisher:
Royal Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (20)

Millisecond Pulsars, their Evolution and Applications journal September 2017
THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS journal September 2013
REFINING THE ASSOCIATIONS OF THE FERMI LARGE AREA TELESCOPE SOURCE CATALOGS journal February 2015
SAX J1808.4−3658, an accreting millisecond pulsar shining in gamma rays? journal December 2015
A study of multifrequency polarization pulse profiles of millisecond pulsars journal April 2015
High-precision timing of 42 millisecond pulsars with the European Pulsar Timing Array journal March 2016
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems journal December 2019
The Green Bank North Celestial Cap Pulsar Survey. III. 45 New Pulsar Timing Solutions journal May 2018
The NANOGrav 11 yr Data Set: Arecibo Observatory Polarimetry and Pulse Microcomponents journal July 2018
X-Ray Census of Millisecond Pulsars in the Galactic Field journal August 2018
Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015–2017 LIGO Data journal June 2019
The NANOGrav 11-year Data Set: High-precision Timing of 45 Millisecond Pulsars journal April 2018
A Millisecond Pulsar Discovery in a Survey of Unidentified Fermi γ -Ray Sources with LOFAR journal September 2017
A NICER View of PSR J0030+0451: Evidence for a Global-scale Multipolar Magnetic Field journal December 2019
The Second Fermi Large area Telescope Catalog of Gamma-Ray Pulsars text January 2013
Refining the associations of the Fermi Large Area Telescope Source Catalogs text January 2015
High-precision timing of 42 millisecond pulsars with the European Pulsar Timing Array text January 2016
Millisecond Pulsars, their Evolution and Applications text January 2017
The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars text January 2018
Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015-2017 LIGO Data text January 2019

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