8 papers
Multipole Functions for Image Analysis II: Equal Area Weighting and Application to Supernova Remnant Images
D. A. Leahy, S. Ranasinghe, M. D. Filipovic +1
New basis functions for 2 dimensional (2D) image analysis with a circular boundary (referred to as multipole analysis) are derived which are equal-area weighted. We present open ac…
The Salamander: A case study of the magnetic field and peculiar morphology of G309.8-2.6 through radio polarimetry
Wenhui Jing, Jennifer L. West, Xiaohui Sun +17
Studying the interaction between core-collapse supernova remnants (SNRs) and their surrounding environments is essential to understanding the mechanism for energy transfer to the i…
WALLABY pilot survey: Blinded by the light -- discovery of a fourth member in the ESO 179-013 system
Rayssa Guimarães Silva, Marco Grossi, Denise R. Gonçalves +12
We present new ASKAP/WALLABY HI observations of the nearby dwarf galaxy system ESO 179-013 (Kathryn's Wheel), the nearest known collisional ring galaxy, located 10 Mpc away in the…
Multi-frequency radio-continuum study of the LMC SNR N206 (Goat's Eye) and its "zig-zag" PWN
M. Ghavam, Z. J. Smeaton, M. D. Filipovic +17
We present new radio-continuum observations of the Large Magellanic Cloud (LMC) supernova remnant (SNR) N206, which we give the name "Goat's Eye". Goat's Eye contains an interior r…
Evolutionary Map of the Universe: A pilot survey to detect high Galactic latitude pulsars in variance images with ASKAP
A. Ahmad, S. Dai, E. Lenc +13
It has been proposed that radio pulsars can be distinguished from other point-like radio sources in continuum images by their unique interstellar scintillation signatures. Using da…
New ASKAP radio-continuum surveys of the Small Magellanic Cloud
O. K. Khattab, M. D. Filipovic', Z. J. Smeaton +5
We present two new radio continuum images from the ASKAP POSSUM survey in the direction of the Small Magellanic Cloud. The two new source lists contain 36,571 radio continuum sourc…
Study of a giant Large Magellanic Cloud Supernova Remnant, Veliki (J0450.4-7050)
Z. J. Smeaton, M. D. Filipović, R. Z. E. Alsaberi +12
We present a high-resolution radio-continuum view and a multi-frequency analysis of the Large Magellanic Cloud (LMC) Supernova Remnant (SNR) J0450.4-7050, which we give the nicknam…
Multipole Analysis and Application to Supernova Remnant X-ray Images
Denis A. Leahy, S. Ranasinghe, J. Hansen +2
We develop a multipole analysis method for images with a circular boundary, then apply it to supernova remnant (SNR) images. The morphology of SNR images is related to several fact…