Development of a Pulsar-Based 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 t...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Wiley-Blackwell Publishing Ltd.
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/38201 |
| _version_ | 1848755256603705344 |
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| author | Hobbs, G. Coles, W. Manchester, R. Keith, M. Shannon, R. Chen, D. Bailes, M. Bhat, Ramesh Burke-Spolaor, S. Champion, D. Chaudhary, A. Hotan, A. Khoo, J. Kocz, J. Levin, Y. Oslowski, S. Preisig, B. Ravi, V. Reynolds, J. Sarkissian, J. van Straten, W. Verbiest, J. Yardley, D. You, X. |
| author_facet | Hobbs, G. Coles, W. Manchester, R. Keith, M. Shannon, R. Chen, D. Bailes, M. Bhat, Ramesh Burke-Spolaor, S. Champion, D. Chaudhary, A. Hotan, A. Khoo, J. Kocz, J. Levin, Y. Oslowski, S. Preisig, B. Ravi, V. Reynolds, J. Sarkissian, J. van Straten, W. Verbiest, J. Yardley, D. You, X. |
| author_sort | Hobbs, G. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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 Échelle 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. |
| first_indexed | 2025-11-14T08:53:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-38201 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:53:25Z |
| publishDate | 2012 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-382012017-09-13T16:09:10Z Development of a Pulsar-Based Time-Scale Hobbs, G. Coles, W. Manchester, R. Keith, M. Shannon, R. Chen, D. Bailes, M. Bhat, Ramesh Burke-Spolaor, S. Champion, D. Chaudhary, A. Hotan, A. Khoo, J. Kocz, J. Levin, Y. Oslowski, S. Preisig, B. Ravi, V. Reynolds, J. Sarkissian, J. van Straten, W. Verbiest, J. Yardley, D. You, X. time pulsars general 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 Échelle 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. 2012 Journal Article http://hdl.handle.net/20.500.11937/38201 10.1111/j.1365-2966.2012.21946.x Wiley-Blackwell Publishing Ltd. fulltext |
| spellingShingle | time pulsars general Hobbs, G. Coles, W. Manchester, R. Keith, M. Shannon, R. Chen, D. Bailes, M. Bhat, Ramesh Burke-Spolaor, S. Champion, D. Chaudhary, A. Hotan, A. Khoo, J. Kocz, J. Levin, Y. Oslowski, S. Preisig, B. Ravi, V. Reynolds, J. Sarkissian, J. van Straten, W. Verbiest, J. Yardley, D. You, X. Development of a Pulsar-Based Time-Scale |
| title | Development of a Pulsar-Based Time-Scale |
| title_full | Development of a Pulsar-Based Time-Scale |
| title_fullStr | Development of a Pulsar-Based Time-Scale |
| title_full_unstemmed | Development of a Pulsar-Based Time-Scale |
| title_short | Development of a Pulsar-Based Time-Scale |
| title_sort | development of a pulsar-based time-scale |
| topic | time pulsars general |
| url | http://hdl.handle.net/20.500.11937/38201 |