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Title: Six New Millisecond Pulsars From Arecibo Searches Of Fermi Gamma-Ray Sources

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [3];  [4];  [5];  [4];  [6];  [7];  [4]
  1. Univ. of Virginia, Charlottesville, VA (United States)
  2. Columbia Univ., New York, NY (United States)
  3. Australia Telescope National Facility (Australia)
  4. Naval Research Lab. (NRL), Washington, DC (United States)
  5. National Radio Astronomy Observatory (NRAO), Charlottesville, VA (United States)
  6. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  7. Stanford Univ., CA (United States)
+ Show Author Affiliations

We have discovered six radio millisecond pulsars (MSPs) in a search with the Arecibo telescope of 34 unidentified gamma-ray sources from the Fermi Large Area Telescope (LAT) 4-year point source catalog. Among the 34 sources, we also detected two MSPs previously discovered elsewhere. Each source was observed at a center frequency of 327 MHz, typically at three epochs with individual integration times of 15 minutes. The new MSP spin periods range from 1.99 to 4.66 ms. Five of the six pulsars are in interacting compact binaries (period ≤ 8.1 hr), while the sixth is a more typical neutron star-white dwarf binary with an 83-day orbital period. This is a higher proportion of interacting binaries than for equivalent Fermi-LAT searches elsewhere. The reason is that Arecibo’s large gain afforded us the opportunity to limit integration times to 15 minutes, which significantly increased our sensitivity to these highly accelerated systems. Seventeen of the remaining 26 gamma-ray sources are still categorized as strong MSP candidates, and will be re-searched.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1355677
Journal Information:
The Astrophysical Journal (Online), Vol. 819, Issue 1; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (24)

Millisecond Pulsars, their Evolution and Applications journal September 2017
The Einstein@Home Gamma-ray Pulsar Survey. II. Source Selection, Spectral Analysis, and Multiwavelength Follow-up journal February 2018
The Einstein@Home Gamma-Ray Pulsar Survey. i. Search Methods, Sensitivity, and Discovery of new Young Gamma-Ray Pulsars journal January 2017
The astrophysics of nanohertz gravitational waves journal June 2019
Timing of PSR J2055+3829, an eclipsing black widow pulsar discovered with the Nançay Radio Telescope journal September 2019
Multiband Optical Light Curves of Black-widow Pulsars journal September 2019
The LOFAR Tied-Array All-Sky Survey (LOTAAS): Survey overview and initial pulsar discoveries journal June 2019
Optical Spectroscopy and Demographics of Redback Millisecond Pulsar Binaries journal February 2019
High Energy Radiation from Spider Pulsars journal December 2019
Eight Millisecond Pulsars Discovered in the Arecibo PALFA Survey journal December 2019
PSR J1306-40: An X-Ray Luminous Redback with an Evolved Companion journal April 2019
Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952−0607 journal September 2019
A Millisecond Pulsar Discovery in a Survey of Unidentified Fermi γ -Ray Sources with LOFAR journal September 2017
Is the gamma-ray source 3FGL J2212.5+0703 a dark matter subhalo? journal May 2016
Optical detection of the black widow binary PSR J2052+1219 journal September 2019
Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952-0607 other January 2019
Multiwavelength Observations of the Redback Millisecond Pulsar J1048+2339 text January 2016
Is The Gamma-Ray Source 3FGL J2212.5+0703 A Dark Matter Subhalo? text January 2016
The Einstein@Home Gamma-ray Pulsar Survey. I. Search Methods, Sensitivity and Discovery of New Young Gamma-ray Pulsars text January 2016
Millisecond Pulsars, their Evolution and Applications text January 2017
The Einstein@Home Gamma-Ray Pulsar Survey II. Source Selection, Spectral Analysis and Multi-wavelength Follow-up text January 2017
The Astrophysics of Nanohertz Gravitational Waves text January 2018
Optical spectroscopy and demographics of redback millisecond pulsar binaries text January 2018
Multiband Optical Light Curves of Black-Widow Pulsars text January 2019

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