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Astrophysics > High Energy Astrophysical Phenomena
Title: Decade-long timing of four GMRT discovered millisecond pulsars
(Submitted on 29 Sep 2023 (v1), last revised 31 Oct 2023 (this version, v2))
Abstract: The discovery and timing follow-up of millisecond pulsars (MSPs) are necessary not just for their usefulness in Pulsar Timing Arrays (PTAs) but also for investigating their own intriguing properties. In this work, we provide the findings of the decade-long timing of the four MSPs discovered by the Giant Metre-wave Radio Telescope (GMRT), including their timing precision, model parameters, and newly detected proper motions. We compare the timing results for these MSPs before and after the GMRT upgrade in 2017, characterise the improvement in timing precision due to the bandwidth upgrade. We discuss the suitability of these four GMRT MSPs as well as the usefulness of their decade-long timing data for the PTA {experiments. It may aid} in the global effort to improve the signal-to-noise (S/N) of recently detected signature of gravitational waves in cross-correlation statistics of residuals of MSPs.
Submission history
From: Shyam Sunder Sharma [view email][v1] Fri, 29 Sep 2023 18:11:36 GMT (4043kb,D)
[v2] Tue, 31 Oct 2023 06:19:50 GMT (4001kb,D)
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