Аннотация
We present the results from studying 140 radio sources in the GLEAM (GaLactic
and Extragalactic All-sky MWA Murchison Widefield Array) 4-Jy (G4Jy) Sample.
These sources were followed-up with MeerKAT to assess their radio morphology
and enable host-galaxy identification, as existing radio images of 25 to
45-arcsec resolution do not provide sufficient information. We refer to these
sources as the MeerKAT-2019 subset. The aim is to identify the host galaxy of
these sources by visually inspecting the overlays comprising radio data from
four surveys (at 150, 200, 843/1400, and 1300 MHz). Our morphological
classification and host-galaxy identification relies upon the ~7-arcsec
resolution images from MeerKAT (1300 MHz). Through the visual inspection of the
overlays, 14 radio sources in the MeerKAT-2019 subset have wide-angle tail
(WAT) morphology, 10 are head-tail, and 5 have X-, S-/Z-shaped morphology. Most
of the remaining sources have the radio morphology of typical symmetric lobes.
Of 140 sources, we find host galaxies for 98 sources, leaving 42 with no
identified host galaxy. These 42 sources still have ambiguous identification
even with higher resolution images from MeerKAT.
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