Publications (8)
Emergence of a new HI 21-cm absorption component at z~1.1726 towards the gamma-ray blazar PKS~2355-106
Raghunathan Srianand, Neeraj Gupta, Patrick Petitjean +12
We report the emergence of a new HI 21-cm absorption at z_abs = 1.172635 in the damped Lyman-alpha absorber (DLA) towards the gamma-ray blazar PKS 2355-106 (z_em~1.639) using scien…
A population of high-redshift type-2 quasars-II. Radio Properties
Alejo Martinez-Sansigre, Steve Rawlings, Timothy Garn +4
We present multi-frequency radio observations of a sample of z~2 obscured (type-2) quasars in the Spitzer extragalactic First Look Survey area. We combine the public data at 1.4 GH…
Reionization and the Cosmic Dawn with the Square Kilometre Array
Garrelt Mellema, León Koopmans, Filipe Abdalla +25
The Square Kilometre Array (SKA) will have a low frequency component (SKA-low) which has as one of its main science goals the study of the redshifted 21cm line from the earliest ph…
Equatorial Imaging with e-MERLIN Including the Chilbolton Antenna
Ian Heywood, Hans-Rainer Kloeckner, Steve Rawlings
We discuss the equatorial imaging benefits that arise from the addition of the 25-metre dish at Chilbolton to the e-MERLIN array. Its inclusion considerably enhances the capabiliti…
A Virtual Sky with Extragalactic HI and CO Lines for the SKA and ALMA
Danail Obreschkow, Hans-Rainer Kloeckner, Ian Heywood +2
We present a sky simulation of the atomic HI emission line and the first ten CO rotational emission lines of molecular gas in galaxies beyond the Milky Way. The simulated sky field…
Millimetre observations of a sample of high-redshift obscured quasars
Alejo Martinez-Sansigre, Alexander Karim, Eva Schinnerer +8
We present observations at 1.2 mm with MAMBO-II of a sample of z>~2 radio-intermediate obscured quasars, as well as CO observations of two sources with the Plateau de Bure Interfer…