Zanardo et al. (2014) present a comprehensive
spectral and morphological analysis of the remnant of supernova (SN) 1987A
with the Australia Telescope Compact Array (ATCA) and the Atacama Large
Millimeter/submillimeter Array (ALMA). The non-thermal and thermal components
of the emission from 94 to 672 GHz are separated with the assistance of a
synchrotron template from the ATCA high-resolution observations at 44 GHz,
and a dust template from ALMA observations at 672 GHz. The synchrotron /
dust-subtracted images and the spectral energy distribution indicate
additional emission beside the main synchrotron component (alpha = -0.73)
and the thermal component originating from dust grains at T~22 K. Results
from both the morphological and spectral analysis suggest the presence of
a pulsar wind nebula in the remnant interior, powered by a pulsar likely
located at a westward offset from the SN position.
ATNF
Science Highlights from refereed publications during 2014.
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