22 citations · 36 across the 4 of their papers we have counts for
4 papers
Science with the Australian Square Kilometre Array Pathfinder (ASKAP)
Simon Johnston, Ilana J. Feain, Neeraj Gupta
The future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive…
21-cm absorbers at intermediate redshifts
N. Gupta, R. Srianand, P. Petitjean +2
Damped Lyman-alpha systems (DLAs) seen in the spectra of high-z QSOs allow us to probe the physical conditions in protogalaxies. Our understanding of physical conditions in DLAs at…
Detecting cold gas at intermediate redshifts: GMRT survey using Mg II systems
Neeraj Gupta, R. Srianand, P. Petitjean +3
Intervening HI 21-cm absorption systems at z > 1.0 are very rare and only 4 confirmed detections have been reported in the literature. Despite their scarcity, they provide interest…
Multiwavelength investigation of a near-solar metallicity sub-DLA at z =1.3647 towards PKS 0237-233
Raghunathan Srianand, Neeraj Gupta, Patrick Petitjean
We searched for 21-cm absorption associated with the z_abs = 1.3647 absorption system toward PKS 0237-233 using the GMRT. A high quality UVES spectrum shows that C I and C I* are d…