Interplanetary scintillation found to contaminate the EoR signal

Oct 20, 2015

The Epoch of Reionisation (EoR) is a period in the early Universe when the first stars and galaxies began radiating. Before this time, the Universe existed in the Dark Ages, a time marked by a lack of radiating sources and a neutral hydrogen intergalactic medium....

Classifying serendipitous X-ray sources with Machine Learning

Oct 16, 2015

The instruments of modern day observational astronomy have been steadily moving towards bigger telescopes and deeper surveys. A number of facilities have recently been (or will soon be) commissioned to survey the sky in unprecedented detail: at radio wavelengths, the...

Lessons about the ionosphere from the MWA Transients Survey

Oct 13, 2015

Over the past two years, the Murchison Widefield Array (MWA) radio telescope has been used to conduct a general survey for transient and variable radio sources, the MWA Transients Survey (MWATS). Although the MWA’s large field of view alone gives it impressive survey...

Novel trick draws fundamental scaling relation to high redshifts

Sep 30, 2015

Galactic scaling relations are an important part of extragalactic research as they are tracers of galaxy evolution processes and are also quite often useful observational tools. The Tully-Fisher Relation (TFR) is one such scaling relation linking the mass (using...