Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries

Research output: Contribution to journal › Article › Research › peer review

Authors

  • M. Burgay
  • L. Nieder
  • C. J. Clark
  • P. C.C. Freire
  • S. Buchner
  • T. Thongmeearkom
  • J. D. Turner
  • E. Carli
  • I. Cognard
  • J. M. Grieaβmeier
  • R. Karuppusamy
  • M. C. I Bernadich
  • A. Possenti
  • V. Venkatraman Krishnan
  • R. P. Breton
  • E. D. Barr
  • B. W. Stappers
  • M. Kramer
  • L. Levin
  • S. M. Ransom
  • P. V. Padmanabh

Research Organisations

External Research Organisations

  • Istituto Nazionale di Astrofisica (INAF)
  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
  • Max Planck Institute for Radio Astronomy (MPIfR)
  • South African Radio Astronomy Observatory (SARAO)
  • University of Manchester
  • National Astronomical Research Institute of Thailand
  • Universite d'Orleans
  • PSL Research University
  • National Radio Astronomy Observatory Socorro
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Details

Original languageEnglish
Article numberA315
Number of pages20
JournalAstronomy and astrophysics
Volume691
Early online date22 Nov 2024
Publication statusPublished - Nov 2024

Abstract

This paper presents the results of a joint radio and gamma-ray timing campaign on the nine millisecond pulsars (MSPs) discovered as part of the L-band targeted survey of Fermi-LAT sources performed in the context of the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project. Out of these pulsars, eight are members of binary systems; of these eight, two exhibit extended eclipses of the radio emission. Using an initial radio timing solution, pulsations were found in the gamma rays for six of the targets. For these sources, a joint timing analysis of radio times of arrival and gamma-ray photons was performed, using a newly developed code that optimises the parameters through a Markov chain Monte Carlo (MCMC) technique. This approach has allowed us to precisely measure both the short- and long-term timing parameters. This study includes a proper motion measurement for four pulsars, which a gamma ray-only analysis would not have been sensitive to, despite the 15-year span of Fermi data.

Keywords

    Binaries: eclipsing, Binaries: general, Gamma rays: stars, Pulsars: general

ASJC Scopus subject areas

Cite this

Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries. / Burgay, M.; Nieder, L.; Clark, C. J. et al.
In: Astronomy and astrophysics, Vol. 691, A315, 11.2024.

Research output: Contribution to journal › Article › Research › peer review

Burgay, M, Nieder, L, Clark, CJ, Freire, PCC, Buchner, S, Thongmeearkom, T, Turner, JD, Carli, E, Cognard, I, Grieaβmeier, JM, Karuppusamy, R, I Bernadich, MC, Possenti, A, Venkatraman Krishnan, V, Breton, RP, Barr, ED, Stappers, BW, Kramer, M, Levin, L, Ransom, SM & Padmanabh, PV 2024, 'Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries', Astronomy and astrophysics, vol. 691, A315. https://doi.org/10.1051/0004-6361/202451530
Burgay, M., Nieder, L., Clark, C. J., Freire, P. C. C., Buchner, S., Thongmeearkom, T., Turner, J. D., Carli, E., Cognard, I., Grieaβmeier, J. M., Karuppusamy, R., I Bernadich, M. C., Possenti, A., Venkatraman Krishnan, V., Breton, R. P., Barr, E. D., Stappers, B. W., Kramer, M., Levin, L., ... Padmanabh, P. V. (2024). Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries. Astronomy and astrophysics, 691, Article A315. https://doi.org/10.1051/0004-6361/202451530
Burgay M, Nieder L, Clark CJ, Freire PCC, Buchner S, Thongmeearkom T et al. Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries. Astronomy and astrophysics. 2024 Nov;691:A315. Epub 2024 Nov 22. doi: 10.1051/0004-6361/202451530
Burgay, M. ; Nieder, L. ; Clark, C. J. et al. / Radio and gamma-ray timing of TRAPUM L -band Fermi pulsar survey discoveries. In: Astronomy and astrophysics. 2024 ; Vol. 691.
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AU - Burgay, M.

AU - Nieder, L.

AU - Clark, C. J.

AU - Freire, P. C.C.

AU - Buchner, S.

AU - Thongmeearkom, T.

AU - Turner, J. D.

AU - Carli, E.

AU - Cognard, I.

AU - Grieaβmeier, J. M.

AU - Karuppusamy, R.

AU - I Bernadich, M. C.

AU - Possenti, A.

AU - Venkatraman Krishnan, V.

AU - Breton, R. P.

AU - Barr, E. D.

AU - Stappers, B. W.

AU - Kramer, M.

AU - Levin, L.

AU - Ransom, S. M.

AU - Padmanabh, P. V.

N1 - Publisher Copyright: © 2024 The Authors.

PY - 2024/11

Y1 - 2024/11

N2 - This paper presents the results of a joint radio and gamma-ray timing campaign on the nine millisecond pulsars (MSPs) discovered as part of the L-band targeted survey of Fermi-LAT sources performed in the context of the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project. Out of these pulsars, eight are members of binary systems; of these eight, two exhibit extended eclipses of the radio emission. Using an initial radio timing solution, pulsations were found in the gamma rays for six of the targets. For these sources, a joint timing analysis of radio times of arrival and gamma-ray photons was performed, using a newly developed code that optimises the parameters through a Markov chain Monte Carlo (MCMC) technique. This approach has allowed us to precisely measure both the short- and long-term timing parameters. This study includes a proper motion measurement for four pulsars, which a gamma ray-only analysis would not have been sensitive to, despite the 15-year span of Fermi data.

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