Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 427, Issue 4, Pages 2780-2787Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2012.21946.x
Keywords
time; pulsars: general
Categories
Funding
- Commonwealth of Australia
- RNM's Australian Research Council (ARC) Federation Fellowship [FF0348478]
- National Natural Science Foundation of China (NSFC) [10803006, 11010250]
- Australian Research Council [DP0878388]
- European Union under Marie-Curie Intra-European Fellowship [236394]
- Australian Research Council [FF0348478] Funding Source: Australian Research Council
Ask authors/readers for more resources
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available