A Pulsar Timescale Algorithm Using NANOGRAV Data
- https://doi.org/10.2991/icmmita-15.2015.198How to use a DOI?
- pulsars timing residuals; ensemble pulsar time scale; frequency instability.
Millisecond pulsar can generate another type of time scale that is totally independent of atomic time scale, because physical mechanisms of pulsar time scale and atomic time scale are quite different. Usually pulsar timing observation isn't even sampled, and their data set is sparse, So we use cubic spline interpolation to densify data file and make intervals between data points even, after that we employ vondrak filter to smooth data set and get rid of high frequency noise. We used the latest released NANOGRAV data to generate ensemble pulsar time. Clock difference between pulsar time(PT) and atomic time was got and instability of PT was analysed, RMS of clock difference is 0.056?s, and long term frequency instability of PT(>1year) is better than 4E-15. Results show that instability of PT is comparable to that of atomic time scale.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Dongshan Yin AU - Shuhong Zhao AU - Yuping Gao AU - Yuejuan Jing PY - 2015/11 DA - 2015/11 TI - A Pulsar Timescale Algorithm Using NANOGRAV Data BT - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SP - 1077 EP - 1081 SN - 2352-538X UR - https://doi.org/10.2991/icmmita-15.2015.198 DO - https://doi.org/10.2991/icmmita-15.2015.198 ID - Yin2015/11 ER -