ABSTRACT A Faraday rotation measure (RM) catalogue, or RM Grid, is a valuable resource
for the study of cosmic magnetism. Using the second data release (DR2) from the LOFAR
Two-metre Sky Survey (LoTSS), we have produced a catalogue of 2461 extragalactic high-
precision RM values across 5720 deg2 of sky (corresponding to a polarized source areal
number density of∼ 0.43 deg− 2). The linear polarization and RM properties were derived
using RM synthesis from the Stokes Q and U channel images at an angular resolution of 20�…

We present the first 2.5 yr of data from the MeerKAT Pulsar Timing Array (MPTA), part of
MeerTime, a MeerKAT Large Survey Project. The MPTA aims to precisely measure pulse
arrival times from an ensemble of 88 pulsars visible from the Southern hemisphere, with the
goal of contributing to the search, detection, and study of nanohertz-frequency gravitational
waves as part of the International Pulsar Timing Array. This project makes use of the
MeerKAT telescope and operates with a typical observing cadence of 2 weeks using the L�…