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Development of a pulsar-based time-scale
Hobbs, G.; Coles, W.; Manchester, R. N.; Keith, M. J.; Shannon, R. M.; Chen, D.; Bailes, M.; Bhat, N. D. R.; Burke-Spolaor, S.; Champion, D.; Chaudhary, A.; Hotan, A.; Khoo, J.; Kocz, J.; Levin, Y.; Oslowski, S.; Preisig, B.; Ravi, V.; Reynolds, J. E.; Sarkissian, J.; van Straten, W.; Verbiest, J. P. W.; Yardley, D.; You, X. P.; Hobbs, G (reprint author), CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia.
Department空间技术部
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2012
Volume427Issue:4Pages:2780-2787
ISSN0035-8711
Language英语
KeywordTime Pulsars: General
AbstractUsing observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Echelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11). We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale.; Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Echelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11). We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3020
Collection空间技术部
Corresponding AuthorHobbs, G (reprint author), CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia.
Recommended Citation
GB/T 7714
Hobbs, G.,Coles, W.,Manchester, R. N.,et al. Development of a pulsar-based time-scale[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,427(4):2780-2787.
APA Hobbs, G..,Coles, W..,Manchester, R. N..,Keith, M. J..,Shannon, R. M..,...&Hobbs, G .(2012).Development of a pulsar-based time-scale.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,427(4),2780-2787.
MLA Hobbs, G.,et al."Development of a pulsar-based time-scale".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 427.4(2012):2780-2787.
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