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Development of a pulsar-based time-scale
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) analo...
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| Published in: | Monthly notices of the Royal Astronomical Society 2012-12, Vol.427 (4), p.2780-2787 |
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c4696-6a7e59fe9a37d94abb3a5cd5b1b50880a4bb7ece772be6ab910c16646185f1883 |
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| container_title | Monthly notices of the Royal Astronomical Society |
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| creator | 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. |
| description | 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 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. |
| doi_str_mv | 10.1111/j.1365-2966.2012.21946.x |
| format | article |
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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.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1111/j.1365-2966.2012.21946.x</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Science Ltd</publisher><subject>Arrays ; Atomic physics ; Pulsars ; pulsars: general ; time</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2012-12, Vol.427 (4), p.2780-2787</ispartof><rights>2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS 2012</rights><rights>2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS</rights><rights>Monthly Notices of the Royal Astronomical Society © 2012 RAS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4696-6a7e59fe9a37d94abb3a5cd5b1b50880a4bb7ece772be6ab910c16646185f1883</citedby><cites>FETCH-LOGICAL-c4696-6a7e59fe9a37d94abb3a5cd5b1b50880a4bb7ece772be6ab910c16646185f1883</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Hobbs, G.</creatorcontrib><creatorcontrib>Coles, W.</creatorcontrib><creatorcontrib>Manchester, R. N.</creatorcontrib><creatorcontrib>Keith, M. J.</creatorcontrib><creatorcontrib>Shannon, R. M.</creatorcontrib><creatorcontrib>Chen, D.</creatorcontrib><creatorcontrib>Bailes, M.</creatorcontrib><creatorcontrib>Bhat, N. D. R.</creatorcontrib><creatorcontrib>Burke-Spolaor, S.</creatorcontrib><creatorcontrib>Champion, D.</creatorcontrib><creatorcontrib>Chaudhary, A.</creatorcontrib><creatorcontrib>Hotan, A.</creatorcontrib><creatorcontrib>Khoo, J.</creatorcontrib><creatorcontrib>Kocz, J.</creatorcontrib><creatorcontrib>Levin, Y.</creatorcontrib><creatorcontrib>Oslowski, S.</creatorcontrib><creatorcontrib>Preisig, B.</creatorcontrib><creatorcontrib>Ravi, V.</creatorcontrib><creatorcontrib>Reynolds, J. E.</creatorcontrib><creatorcontrib>Sarkissian, J.</creatorcontrib><creatorcontrib>van Straten, W.</creatorcontrib><creatorcontrib>Verbiest, J. P. W.</creatorcontrib><creatorcontrib>Yardley, D.</creatorcontrib><creatorcontrib>You, X. P.</creatorcontrib><title>Development of a pulsar-based time-scale</title><title>Monthly notices of the Royal Astronomical Society</title><addtitle>Mon. Not. R. Astron. Soc</addtitle><description>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 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.</description><subject>Arrays</subject><subject>Atomic physics</subject><subject>Pulsars</subject><subject>pulsars: general</subject><subject>time</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkMtKxDAUhoMoOI6-Q8HNbFJzcm03goxX8AKi65B0TqGlM63NVGfe3nYqLhTBbE7gfP-f8BESAYuhP2dlDEIrylOtY86AxxxSqePNHpl8L_bJhDGhaGIADslRCCVjTAquJ2R2ie9Y1c0SV-uoziMXNV0VXEu9C7iI1sUSachchcfkIHdVwJOvOSWv11cv81t6_3RzN7-4p5nUqabaGVRpjqkTZpFK571wKlsoD16xJGFOem8wQ2O4R-18CiwDraWGROWQJGJKZmNv09ZvHYa1XRYhw6pyK6y7YIEbbvomNaCnP9Cy7tpV_7ueklwLBlL0VDJSWVuH0GJum7ZYunZrgdlBoS3tYMoOpuyg0O4U2k0fPR-jH0WF23_n7MPj8-7aF4ixoO6aP-L097OfWkiERg</recordid><startdate>20121221</startdate><enddate>20121221</enddate><creator>Hobbs, G.</creator><creator>Coles, W.</creator><creator>Manchester, R. 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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.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science Ltd</pub><doi>10.1111/j.1365-2966.2012.21946.x</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0035-8711 |
| ispartof | Monthly notices of the Royal Astronomical Society, 2012-12, Vol.427 (4), p.2780-2787 |
| issn | 0035-8711 1365-2966 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1272708858 |
| source | Open Access: Oxford University Press Open Journals; Free E-Journal (出版社公開部分のみ） |
| subjects | Arrays Atomic physics Pulsars pulsars: general time |
| title | Development of a pulsar-based time-scale |
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