Third-Generation Calibrations for MeerKAT observation
  Superclusters and galaxy clusters offer a wide range of astrophysical science
topics with regards to studying the evolution and distribution of galaxies,
intra-cluster magnetization mediums, cosmic ray accelerations and large scale
diffuse radio sources all in one observation. Recent developments in new radio
telescopes and advanced calibration software have completely changed data
quality that was never possible with old generation telescopes. Hence, radio
observations of superclusters are a very promising avenue to gather rich
information of a large-scale structure (LSS) and their formation mechanisms.
These newer wide-band and wide field-of-view (FOV) observations require
state-of-the-art data analysis procedures, including calibration and imaging,
in order to provide deep and high dynamic range (DR) images with which to study
the diffuse and faint radio emissions in supercluster environments. Sometimes,
strong point sources hamper the radio observations and limit the achievement of
a high DR. In this paper, we have shown the DR improvements around strong radio
sources in the MeerKAT observation of the Saraswati supercluster by applying
newer third-generation calibration (3GC) techniques using CubiCal and killMS
software. We have also calculated the statistical parameters to quantify the
improvements around strong radio sources. This analysis advocates for the use
of new calibration techniques to maximize the scientific returns from
new-generation telescopes.
