Apr 28, 2016
Radio galaxies are twin-lobed structures visible in the radio portion of the electromagnetic spectrum which typically extend 100-1,000 kilo-parsecs end to end. The lobes are the result of two opposing jets coming out of the central black hole of these galaxies. These...
Apr 26, 2016
Intensity mapping is a novel technique that uses the Hydrogen emission at radio wavelengths of galaxies as a proxy for galaxy distribution on large scales. The statistical properties of this distribution help us understand the cosmological principles of our Universe....
Apr 20, 2016
High time resolution radio surveys over the last decade have discovered a population of millisecond-duration transient bursts called Fast Radio Bursts (FRBs) of unknown. Only 18 of these bursts have been detected to date, and their origin – whether extragalactic or at...
Apr 18, 2016
The Universe experienced an “Epoch of Reionisation” (EoR) at redshift z ≥ 6 during which the cosmic diffuse neutral hydrogen (HI) was “photo-ionised” by a background of ultraviolet (UV) and X-ray radiation. This radiation was produced by the...
Apr 7, 2016
We are not living in a fixed rest frame on Earth: the Earth is orbiting around the Sun, the Sun is moving around the centre of our galaxy, and the galaxy itself is moving towards the nearest mass over-density around us, which is the nearest galaxy cluster in Virgo....
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