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

Abstract

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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [4];  [6];  [7];  [4]
+ Show Author Affiliations
  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)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1355677
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 819; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Cromartie, H. T., Camilo, F., Kerr, M., Deneva, J. S., Ransom, S. M., Ray, P. S., Ferrara, E. C., Michelson, P. F., and Wood, K. S. Six New Millisecond Pulsars From Arecibo Searches Of Fermi Gamma-Ray Sources. United States: N. p., 2016. Web. doi:10.3847/0004-637X/819/1/34.
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Cromartie, H. T., Camilo, F., Kerr, M., Deneva, J. S., Ransom, S. M., Ray, P. S., Ferrara, E. C., Michelson, P. F., & Wood, K. S. Six New Millisecond Pulsars From Arecibo Searches Of Fermi Gamma-Ray Sources. United States. https://doi.org/10.3847/0004-637X/819/1/34
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Cromartie, H. T., Camilo, F., Kerr, M., Deneva, J. S., Ransom, S. M., Ray, P. S., Ferrara, E. C., Michelson, P. F., and Wood, K. S. Thu . "Six New Millisecond Pulsars From Arecibo Searches Of Fermi Gamma-Ray Sources". United States. https://doi.org/10.3847/0004-637X/819/1/34. https://www.osti.gov/servlets/purl/1355677.
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@article{osti_1355677,
title = {Six New Millisecond Pulsars From Arecibo Searches Of Fermi Gamma-Ray Sources},
author = {Cromartie, H. T. and Camilo, F. and Kerr, M. and Deneva, J. S. and Ransom, S. M. and Ray, P. S. and Ferrara, E. C. and Michelson, P. F. and Wood, K. S.},
abstractNote = {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.},
doi = {10.3847/0004-637X/819/1/34},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 819,
place = {United States},
year = {Thu Feb 25 00:00:00 EST 2016},
month = {Thu Feb 25 00:00:00 EST 2016}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.3847/0004-637X/819/1/34
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    Works referencing / citing this record:

    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
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    • Burke-Spolaor, Sarah; Taylor, Stephen R.; Charisi, Maria
    • The Astronomy and Astrophysics Review, Vol. 27, Issue 1
    • DOI: 10.1007/s00159-019-0115-7

    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

    • Draghis, Paul; Romani, Roger W.; Filippenko, Alexei V.
    • The Astrophysical Journal, Vol. 883, Issue 1
    • DOI: 10.3847/1538-4357/ab378b

    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

    • Strader, Jay; Swihart, Samuel; Chomiuk, Laura
    • The Astrophysical Journal, Vol. 872, Issue 1
    • DOI: 10.3847/1538-4357/aafbaa

    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

    • Swihart, Samuel J.; Strader, Jay; Chomiuk, Laura
    • The Astrophysical Journal, Vol. 876, Issue 1
    • DOI: 10.3847/1538-4357/ab125e

    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

    • Pleunis, Z.; Bassa, C. G.; Hessels, J. W. T.
    • The Astrophysical Journal, Vol. 846, Issue 2
    • DOI: 10.3847/2041-8213/aa83ff

    Is the gamma-ray source 3FGL J2212.5+0703 a dark matter subhalo?
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    • Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 05
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    Multiband Optical Light Curves of Black-Widow Pulsars
    text, January 2019

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