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. Author manuscript; available in PMC: 2020 Nov 3.
Published in final edited form as: Mon Not R Astron Soc. 2020 Sep 1;498(4):4605–4614. doi: 10.1093/mnras/staa2640

Figure 3.

Figure 3.

Evolution of the spin frequency v of PSR J0537–6910. Large circles are NICER values measured by fitting a timing model to TOAs in each segment (see Table 1). Small circles denote RXTE values from Table 1 of Antonopoulou et al. (2018). Vertical dotted lines denote the start (MJD 57722, 2016 November 30) and end (MJD 57990, 2017 August 25) of the second observing run (O2) and start (MJD 58574, 2019 April 1) and end (MJD 58935, 2020 March 27) of the third observing run (O3) of LIGO/Virgo.