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17th of January 2020
ATCA observations of the SCORPIO field
by Ingallinera et al.
Ingallinera et al. present a catalogue of a large sample of extended radio sources in the SCORPIO field, observed and resolved by the Australia Telescope Compact Array. SCORPIO, a pathfinder project for addressing the early operations of the Australia SKA Pathfinder, is a survey of ∼5 square degrees around the plane of our Galaxy, conducted between 1.4 and 3.1 GHz with an angular resolution of about 10 arc-seconds. With the ability to recover angular scales up to 4 arc-minutes, 99 extended sources were found, 35 of them detected for the first time. Studying the radio morphology and comparing the radio emission with infra-red observations led to proposed identification of 6 sources as new H II regions, 2 as new planetary nebulae, 2 as new luminous blue variable or Wolf–Rayet stars and 3 as new supernova remnants. The images above are ATCA images of the extended sources SCO J165948-420527 (left) and SCO J170029-421309 (center), proposed as new supernova remnant candidates. More details are given in the paper, published in Monthly Notices of the Royal Astronomical Society.

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