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
published in Monthly Notices of the Royal Astronomical Society.