Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-26T03:09:13.109Z Has data issue: false hasContentIssue false
  • English
  • Français

Targeted millisecond pulsar surveys of Fermi γ-ray sources with LOFAR

Published online by Cambridge University Press:  04 June 2018

C. G. Bassa ,
Z. Pleunis ,
J. W. T. Hessels ,
E. C. Ferrara ,
V. I. Kondratiev ,
S. Sanidas ,
A. G. Lyne ,
B. W. Stappers ,
S. M. Ransom  and
the Fermi Pulsar Search Consortium
C. G. Bassa
Affiliation:
ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, The Netherlands; [email protected]
Z. Pleunis
Affiliation:
Department of Physics and McGill Space Institute, McGill University, 3600 University St., Montreal, QC H3A 2T8, Canada
J. W. T. Hessels
Affiliation:
ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, The Netherlands; [email protected] Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
E. C. Ferrara
Affiliation:
Center for Research and Exploration in Space Science, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA Department of Astronomy, University of Maryland, College Park, MD 20742, USA
V. I. Kondratiev
Affiliation:
ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, The Netherlands; [email protected] Astro Space Centre, Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya Str. 84/32, Moscow 117997, Russia
S. Sanidas
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
A. G. Lyne
Affiliation:
Jodrell Bank Centre for Astrophysics, The University of Manchester, Manchester, M13 9PL, United Kingdom
B. W. Stappers
Affiliation:
Jodrell Bank Centre for Astrophysics, The University of Manchester, Manchester, M13 9PL, United Kingdom
S. M. Ransom
Affiliation:
National Radio Astronomy Observatory, Charlottesville, VA 22903, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have used LOFAR to perform targeted millisecond pulsar surveys of Fermi γ-ray sources. Operating at a center frequency of 135 MHz, the surveys use a novel semi-coherent dedispersion approach where coherently dedispersed trials at coarsely separated dispersion measures are incoherently dedispersed at finer steps. Three millisecond pulsars have been discovered as part of these surveys. We describe the LOFAR surveys and the properties of the newly discovered pulsars.

Keywords

surveysstars: neutronpulsars: generalbinaries: close
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 33 - 36
Copyright
Copyright © International Astronomical Union 2018 

References

Acero, F., Ackermann, M., Ajello, M., et al. 2015, ApJS, 218, 23Google Scholar
Barsdell, B. R., Bailes, M., Barnes, D. G., & Fluke, C. J., 2012, MNRAS, 422, 379CrossRefGoogle Scholar
Bassa, C. G., Pleunis, Z., & Hessels, J. W. T. 2017a, Astronomy and Computing, 18, 40Google Scholar
Bassa, C. G., Pleunis, Z., Hessels, J. W. T., et al. 2017b, ApJ, 846, L20Google Scholar
Bates, S. D., Lorimer, D. R., & Verbiest, J. P. W., 2013, MNRAS, 431, 1352Google Scholar
Bhat, N. D. R., Cordes, J. M., Camilo, F., Nice, D. J., & Lorimer, D. R., 2004, ApJ, 605, 759Google Scholar
Cognard, I., Guillemot, L., Johnson, T. J., et al. 2011, ApJ, 732, 47Google Scholar
Espinoza, C. M., Guillemot, L., Çelik, Ö., et al. 2013, MNRAS, 430, 571Google Scholar
Frail, D. A., Jagannathan, P., Mooley, K. P., & Intema, H. T., 2016, ApJ, 829, 119Google Scholar
Hessels, J. W. T., Ransom, S. M., Stairs, I. H., et al. 2006, Science, 311, 1901CrossRefGoogle Scholar
Hessels, J. W. T., Roberts, M. S. E., McLaughlin, M. A., et al. 2011, in American Institute of Physics Conference Series, Vol. 1357, American Institute of Physics Conference Series, ed. Burgay, M., D’Amico, N., Esposito, P., Pellizzoni, A., & Possenti, A., 40–43Google Scholar
Johnson, T. J., Venter, C., Harding, A. K., et al. 2014, ApJS, 213, 6Google Scholar
Keith, M. J., Johnston, S., Ray, P. S., et al. 2011, MNRAS, 414, 1292Google Scholar
Kondratiev, V. I., Verbiest, J. P. W., Hessels, J. W. T., et al. 2016, A&A, 585, A128Google Scholar
Kuniyoshi, M., Verbiest, J. P. W., Lee, K. J., et al. 2015, MNRAS, 453, 828CrossRefGoogle Scholar
Maron, O., Kijak, J., Kramer, M., & Wielebinski, R., 2000, A&AS, 147, 195Google Scholar
Pleunis, Z., Bassa, C. G., Hessels, J. W. T., et al. 2017, ApJ, 846, L19CrossRefGoogle Scholar
Prager, B. J., Ransom, S. M., Freire, P. C. C., et al. 2017, ApJ, 845, 148Google Scholar
Ransom, S. M. 2001, PhD thesis, Harvard UniversityGoogle Scholar
Ransom, S. M., Eikenberry, S. S., & Middleditch, J., 2002, AJ, 124, 1788Google Scholar
Ransom, S. M., Ray, P. S., Camilo, F., et al. 2011, ApJ, 727, L16Google Scholar
Ray, P. S., Abdo, A. A., Parent, D., et al. 2012, ArXiv e-prints, arXiv:1205.3089Google Scholar
van Haarlem, M. P., Wise, M. W., Gunst, A. W., et al. 2013, A&A, 556, A2Google Scholar