New ASKAP radio-continuum surveys of the Small Magellanic Cloud

We present two new radio-continuum images from the Australian Square Kilometre Array Pathfinder (ASKAP) POlarisation Sky Survey of the Universe’s Magnetism (POSSUM) survey in the direction of the Small Magellanic Cloud (SMC). The two new source lists produced from these images contain 36,571 radio continuum sources observed at 944 MHz and 15,227 sources at 1367 MHz, with beam sizes of 14⁰⁰ . 5×12⁰⁰ . 2 and 8⁰⁰ . 7×8⁰⁰ . 2, respectively. We used the Aegean software to create these point source catalogues, and together with the previously published Meer-Karoo Array Telescope (MeerKAT) point source catalogue, we estimated spectral indices for the whole population of radio point sources in common. By cross-matching our ASKAP catalogues with the MeerKAT catalogue, we found 21,442 and 12,654 point sources in common for 944 MHz and 1367 MHz, respectively, within a 2⁰⁰ region. This point source catalogue will help to further our knowledge of the SMC and highlights the power of the new generation of telescopes such as ASKAP in studying different galactic populations.