Off-State of Giant Radio Halos Detected

In a paper recently published in ApJ Letters, we have stacked massive, radio-quiet clusters of galaxies in the SUMSS survey (834 MHz) to detect their "off-state" synchrotron emissivity.

Radio-selected double relic cluster discovered!

We have published in ApJ Letters an exciting new cluster of galaxies. This cluster is unique because: 1) It's a new merging cluster, selected on radio properties alone; 2) It's a rare double relic and halo system; 3) It has unique multiple internal radio filaments (shocks?); 4) To has two clear cases of partial shock illumination (like Coma and Abell 548, but much more straightforward); 5) It's does not follow the radio/X-ray luminosity correlation for cluster radio halos. More to come later...black contours are VLA L-band and red are 3' RASS X-ray continuum (0.1-2.4 keV).

Coma cluster paper accepted to MNRAS

We report the discovery of two new shock-structures in the famous Coma cluster of galaxies. The paper can be found on astro-ph or here.

EVLA and ATCA Deep Cluster Survey Pilots Accepted

We have been granted time on both the EVLA and the ATCA for pilot observations preparing for two deep cluster surveys. For the EVLA-DCS, you can find more information here.

Under Construction!