| 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 Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 2012 | |
| Volume | 427Issue:4Pages:2780-2787 |
| ISSN | 0035-8711 |
| Language | 英语 |
| Keyword | Time Pulsars: General |
| Abstract | 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.; 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 By | SCI |
| Funding Project | 中国科学院空间科学与应用研究中心 |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/3020 |
| Collection | 空间技术部 |
| Corresponding Author | Hobbs, 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 201242742780.pdf（938KB） | 开放获取 | CC BY-NC-SA | Application Full Text | |||
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