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

Abstract : Timing results for the black-widow pulsar J2051−0827 are presented, using a 21-year dataset from four European Pulsar Timing Array telescopes and the Parkes radio telescope. This dataset, 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−3pc 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.
Type de document :
Article dans une revue
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (1), pp.1029-1038. 〈10.1093/mnras/stw1737〉
Liste complète des métadonnées

https://hal-insu.archives-ouvertes.fr/insu-01363841
Contributeur : Nathalie Rouchon <>
Soumis le : vendredi 13 janvier 2017 - 14:17:13
Dernière modification le : jeudi 7 février 2019 - 15:57:00
Document(s) archivé(s) le : vendredi 14 avril 2017 - 20:44:39

Fichier

stw1737.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

G. Shaifullah, J. P. W. Verbiest, P. C. C. Freire, T. M. Tauris, N. Wex, et al.. 21 year timing of the black-widow pulsar J2051−0827. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (1), pp.1029-1038. 〈10.1093/mnras/stw1737〉. 〈insu-01363841〉

Partager

Métriques

Consultations de la notice

471

Téléchargements de fichiers

131