21 year timing of the black-widow pulsar J2051-0827

Shaifullah, G.; Verbiest, J. P.W.; Freire, P. C.C.; Tauris, T. M.; Wex, N.; Oslowski, S.; Stappers, B. W.; Bassa, C. G.; Caballero, R. N.; Champion, D. J.; Cognard, I.; Desvignes, G.; Graikou, E.; Guillemot, L.; Janssen, G. H.; Jessner, A.; Jordan, C.; Karuppusamy, R.; Kramer, M.; Lazaridis, K.; Lazarus, P.; Lyne, A. G.; McKee, J. W.; Perrodin, D.; Possenti, A.; Tiburzi, C.

doi:10.1093/mnras/stw1737

21 year timing of the black-widow pulsar J2051-0827

Shaifullah, G.; Verbiest, J. P.W.; Freire, P. C.C.; Tauris, T. M.; Wex, N.; Oslowski, S.; Stappers, B. W.; Bassa, C. G.; Caballero, R. N.; Champion, D. J.; Cognard, I.; Desvignes, G.; Graikou, E.; Guillemot, L.; Janssen, G. H.; Jessner, A.; Jordan, C.; Karuppusamy, R.; Kramer, M.; Lazaridis, K.; Lazarus, P.; Lyne, A. G.; McKee, J. W.; Perrodin, D.; Possenti, A.; Tiburzi, C.

Authors

G. Shaifullah

J. P.W. Verbiest

P. C.C. Freire

T. M. Tauris

N. Wex

S. Oslowski

B. W. Stappers

C. G. Bassa

R. N. Caballero

D. J. Champion

I. Cognard

G. Desvignes

E. Graikou

L. Guillemot

G. H. Janssen

A. Jessner

C. Jordan

R. Karuppusamy

M. Kramer

K. Lazaridis

P. Lazarus

A. G. Lyne

J. W. McKee

D. Perrodin

A. Possenti

C. Tiburzi

Abstract

Timing results for the black-widow pulsar J2051-0827 are presented, using a 21 year data set from four European Pulsar Timing Array telescopes and the Parkes radio telescope. This data set, which is the longest published to date for a black-widow system, allows for an improved analysis that addresses previously unknown biases. While secular variations, as identified in previous analyses, are recovered, short-term variations are detected for the first time. Concurrently, a significant decrease of ~2.5 × 10-3 cm-3 pc in the dispersion measure associated with PSR J2051-0827 is measured for the first time and improvements are also made to estimates of the proper motion. Finally, PSR J2051-0827 is shown to have entered a relatively stable state suggesting the possibility of its eventual inclusion in pulsar timing arrays.

Citation

Shaifullah, G., Verbiest, J. P., Freire, P. C., Tauris, T. M., Wex, N., Oslowski, S., Stappers, B. W., Bassa, C. G., Caballero, R. N., Champion, D. J., Cognard, I., Desvignes, G., Graikou, E., Guillemot, L., Janssen, G. H., Jessner, A., Jordan, C., Karuppusamy, R., Kramer, M., Lazaridis, K., …Tiburzi, C. (2016). 21 year timing of the black-widow pulsar J2051-0827. Monthly notices of the Royal Astronomical Society, 462(1), 1029-1038. https://doi.org/10.1093/mnras/stw1737

Journal Article Type	Article
Acceptance Date	Jul 14, 2016
Online Publication Date	Jul 18, 2016
Publication Date	Oct 11, 2016
Deposit Date	Nov 29, 2022
Publicly Available Date	Feb 17, 2023
Journal	Monthly Notices of the Royal Astronomical Society
Print ISSN	0035-8711
Electronic ISSN	1365-2966
Publisher	Oxford University Press
Peer Reviewed	Peer Reviewed
Volume	462
Issue	1
Pages	1029-1038
DOI	https://doi.org/10.1093/mnras/stw1737
Public URL	https://hull-repository.worktribe.com/output/4134750

Files

Published article (2.2 Mb)
PDF

Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.