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Reynolds et al. have presented Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY) early
science results from the Australian Square Kilometre Array Pathfinder (ASKAP) observations
of the NGC 7162 galaxy group.
They detect six galaxies
in the neutral hydrogen (H I) 21-cm line, expanding the NGC 7162 group membership
from four to seven galaxies.
The figure above shows a Digitized Sky Survey optical image with overlaid
ASKAP (blue) and HIPASS (purple) contours. The ASKAP primary beams
from the A (green dashed circles) and B (magenta dotted circles)
footprints are shown, along with the archival ATCA observation primary
beam (orange solid circle). The postage stamps show Dark Energy Survey
images of each galaxy detected with ASKAP with integrated intensity
contours overlaid from ASKAP (blue) and if observed with ATCA
(grey). The solid orange ellipse in the lower left corner shows the
ASKAP synthesised beam and the empty black ellipse shows the ATCA
synthesised beam.
Full results
are published in the Monthly Notices of the Royal Astronomical Society
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