We present the distance priors from the finally released P lanck TT,TE,EE + lowE data in 2018. The uncertainties are around 40% smaller than those from P lanck 2015 TT+lowP. In order to check the validity of these new distance priors, we adopt the distance priors to constrain the cosmological parameters in different dark energy models, including the ΛCDM model, the wCDM model and the CPL model, and conclude that the distance priors provide consistent constraints on the relevant cosmological parameters compared to those from the full P lanck 2018 data release.

We use Planck data released in 2015 to constrain the abundance of primordial black holes (PBHs) in dark matter in two different reionization models (one is the instantaneous reionization and the other is the asymmetric reionization), and significantly improve the existing upper limits on the abundance of PBHs by around two orders of magnitude. These new limits imply that the event rates of mergers of PBH binaries (Gpc −3 yr −1 ) are less than 0.002 for M pbh = 30M , 5 for M pbh = 10M and 2000 for M pbh = 2M at 95% confidence level (C.L.), and thus the gravitational-wave event GW150914 is very unlikely produced by the merger of a PBH binary.

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