Search Publications
Probing the soft X-ray properties and multi-wavelength variability of SN2023ixf and its progenitor
Auchettl, Katie; Shappee, Benjamin J.; Beacom, John F. +3 more
We present a detailed analysis of nearly two decades of optical/UV and X-ray data to study the multi-wavelength pre-explosion properties and post-explosion X-ray properties of nearby SN2023ixf located in M101. We find no evidence of precursor activity in the optical to UV down to a luminosity of $\lesssim$ $1.0×105 \textrm{L}_{\odot}$ ,…
Evolutionary Map of the Universe (EMU): A pilot search for diffuse, non-thermal radio emission in galaxy clusters with the Australian SKA Pathfinder
Botteon, A.; Riseley, C. J.; Norris, R. P. +10 more
Clusters of galaxies have been found to host Mpc-scale diffuse, non-thermal radio emission in the form of central radio halos and peripheral relics. Turbulence and shock-related processes in the intra-cluster medium are generally considered responsible for the emission, though details of these processes are still not clear. The low surface brightn…
The Sydney Radio Star Catalogue: Properties of radio stars at megahertz to gigahertz frequencies
Stelzer, Beate; Das, Barnali; Pope, Benjamin J. S. +13 more
We present the Sydney Radio Star Catalogue, a new catalogue of stars detected at megahertz to gigahertz radio frequencies. It consists of 839 unique stars with 3 405 radio detections, more than doubling the previously known number of radio stars. We have included stars from large area searches for radio stars found using circular polarisation sear…
4XMM J182531.5−144036: A new persistent Be/X-ray binary found within the XMM-Newton serendipitous survey
Farrell, S. A.; Gosling, A. J.; Clark, J. S. +2 more
We aim to investigate the nature of time-variable X-ray sources detected in the XMM-Newton serendipitous survey. The X-ray light curves of objects in the XMM-Newton serendipitous survey were searched for variability, and coincident serendipitous sources observed by Chandra were also investigated. Subsequent infrared spectroscopy of the counterpart…
First detection of X-ray pulsations and spectrum of the high Galactic latitude pulsar PSR J0837–2454 and direct Urca cooling implications
Deller, Adam T.; Ho, Wynn C. G.; Becker, Werner +2 more
PSR J0837
Evolutionary map of the universe (EMU): Observations of filamentary structures in the Abell S1136 galaxy cluster
Reiprich, Thomas H.; Koribalski, Bärbel S.; Norris, Ray P. +17 more
We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with data from the Murchison Widefield Array, XMM-Newton, the Wide-field Infrared Survey Explorer, the D…