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Title: FAST discovery of an extremely radio-faint millisecond pulsar from the Fermi-LAT unassociated source 3FGL J0318.1+0252

Journal Article · · Science China. Physics, Mechanics & Astronomy
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  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China)
  3. Univ. of Manchester (United Kingdom); Univ. of KwaZulu-Natal, Durban (South Africa)
  4. Univ. of Hong Kong, (China); Univ. of California, Santa Cruz, CA (United States)
  5. Chinese Academy of Sciences (CAS), Kumming (China)
  6. Guizhou Normal University, Guiyang (China)
  7. Univ. of Hong Kong (Hong Kong); Univ. of Maryland, College Park, MD (United States)
  8. US Naval Research Laboratory, Washington (United States)
  9. University of Bordeaux, Gradignan (France)
  10. Stanford Univ., CA (United States)
  11. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  12. Chinese Academy of Sciences (CAS), Shanghai (China)
  13. Xinjiang Astronomical Observatory, Urumqi (China)
+ Show Author Affiliations

High sensitivity radio searches of unassociated γ-ray sources have proven to be an effective way of finding new pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during its commissioning phase, we have carried out a number of targeted deep searches of Fermi Large Area Telescope (LAT) γ-ray sources. On February 27, 2018 we discovered an isolated millisecond pulsar (MSP), PSR J0318+0253, coincident with the unassociated γ-ray source 3FGL J0318.1+0252. PSR J0318+0253 has a spin period of 5.19 ms, a dispersion measure (DM) of 26 pc cm–3 corresponding to a DM distance of about 1.3 kpc, and a period-averaged flux density of (~11±2) µJy at L-band (1.05–1.45 GHz). Among all high energy MSPs, PSR J0318+0253 is the faintest ever detected in radio bands, by a factor of at least ~4 in terms of L-band fluxes. With the aid of the radio ephemeris, an analysis of 9.6 years of Fermi-LAT data revealed that PSR J0318+0253 also displays strong γ-ray pulsations. Follow-up observations carried out by both Arecibo and FAST suggest a likely spectral turn-over around 350 MHz. This is the first result from the collaboration between FAST and the Fermi-LAT teams as well as the first confirmed new MSP discovery by FAST, raising hopes for the detection of many more MSPs. Finally, such discoveries will make a significant contribution to our understanding of the neutron star zoo while potentially contributing to the future detection of gravitational waves, via pulsar timing array (PTA) experiments.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Aeronautics and Space Administration (NASA)
Contributing Organization:
FAST and Fermi-LAT Collaboration
Grant/Contract Number:
AC02-76SF00515; 80NSSC18K1731
OSTI ID:
1872422
Journal Information:
Science China. Physics, Mechanics & Astronomy, Vol. 64, Issue 12; ISSN 1674-7348
Publisher:
Science China Press and SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (29)

The Five-hundred-meter Aperture Spherical Radio Telescope project: THE FAST PROJECT journal July 2016
FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG journal June 2015
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION journal May 2009
FAST in Space: Considerations for a Multibeam, Multipurpose Survey Using China's 500-m Aperture Spherical Radio Telescope (FAST) journal May 2018
SWIFT X-RAY TELESCOPE MONITORING OF FERMI -LAT GAMMA-RAY SOURCES OF INTEREST journal July 2013
Low-frequency spectral turn-overs in millisecond pulsars studied from imaging observations journal August 2015
CLASSIFICATION AND RANKING OF FERMI LAT GAMMA-RAY SOURCES FROM THE 3FGL CATALOG USING MACHINE LEARNING TECHNIQUES journal March 2016
The FAST Discovery of an Eclipsing Binary Millisecond Pulsar in the Globular Cluster M92 (NGC 6341) journal March 2020
The astrophysics of nanohertz gravitational waves journal June 2019
Commissioning progress of the FAST journal March 2019
psrchive and psrfits : An Open Approach to Radio Pulsar Data Storage and Analysis journal January 2004
Pulsar candidate classification using generative adversary networks journal November 2019
Optimized Blind Gamma-Ray Pulsar Searches at Fixed Computing Budget journal October 2014
Repercussions of solar high energy protons on ozone layer during super storms journal January 2019
Optimization and Analysis on Cable Net Structure Supporting the Reflector of the Large Radio Telescope FAST journal September 2011
The Five-Hundred-Meter Aperture Spherical Radio Telescope (Fast) Project journal June 2011
SPINN: a straightforward machine learning solution to the pulsar candidate selection problem journal July 2014
No low-frequency turn-over in the spectra of millisecond pulsars journal March 2001
Searching for Pulsars Using Image Pattern Recognition journal January 2014
SIX NEW MILLISECOND PULSARS FROM ARECIBO SEARCHES OF FERMI GAMMA-RAY SOURCES journal February 2016
Improving Sensitivity to weak Pulsations with Photon Probability Weighting journal April 2011
The FAST Galactic Plane Pulsar Snapshot survey: I. Project design and pulsar discoveries ⋆ journal June 2021
A new Electron-Density Model for Estimation of Pulsar and frb Distances journal January 2017
Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar journal February 2018
Nuclear matter and its role in supernovae, neutron stars and compact object binary mergers journal August 2000
A LOFAR census of millisecond pulsars journal January 2016
An in-depth investigation of 11 pulsars discovered by FAST journal January 2020
Fermi Large Area Telescope Fourth Source Catalog journal March 2020
Preface: Planning the scientific applications of the Five-hundred-meter Aperture Spherical radio Telescope journal February 2019

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
FAST
pulsar
radio
gamma rays