195 citations · 1.1k across the 32 of their papers we have counts for
5 papers · 1 filter
A survey for HI in the distant Universe: the detection of associated 21-cm absorption at z=1.28
S. J. Curran, M. T. Whiting, A. Tanna +3
We have undertaken a survey for HI 21-cm absorption within the host galaxies of z ~ 1.2 - 1.5 radio sources, in the search of the cool neutral gas currently "missing" at z > 1. Thi…
A survey for the missing hydrogen in high redshift radio sources
S. J. Curran, M. T. Whiting, E. M. Sadler +1
Unlike at lower redshift, where there is a 40% detection rate, surveys for 21-cm absorption arising within the hosts of z > 1 radio galaxies and quasars have been remarkably unsucc…
The H2O southern Galactic Plane Survey(HOPS): NH3 (1,1) and (2,2) catalogues
C. R. Purcell, S. N. Longmore, A. J. Walsh +19
The H2O Southern Galactic Plane Survey (HOPS) has mapped a 100 degree strip of the Galactic plane (-70deg > l > 30deg, |b| < 0.5deg) using the 22-m Mopra antenna at 12-mm wavelengt…
A search for 21 cm HI absorption in AT20G compact radio galaxies
J. R. Allison, S. J. Curran, B. H. C. Emonts +7
We present results from a search for 21 cm associated HI absorption in a sample of 29 radio sources selected from the Australia Telescope 20 GHz survey. Observations were conducted…
Complete ionisation of the neutral gas: why there are so few detections of 21-cm hydrogen in high redshift radio galaxies and quasars
S. J. Curran, M. T. Whiting
From the first published z > 3 survey of 21-cm absorption within the hosts of radio galaxies and quasars, we found an apparent dearth of cool neutral gas at high redshift. From a d…