107 citations · 242 across the 9 of their papers we have counts for
16 papers
A Floating Octave Bandwidth Cone-Disc Antenna for Detection of Cosmic Dawn
Agaram Raghunathan, Ravi Subrahmanyan, N. Udaya Shankar +9
The critical component of radio astronomy radiometers built to detect redshifted 21-cm signals from Cosmic Dawn is the antenna element. We describe the design and performance of an…
SARAS 3 CD/EoR Radiometer: Design and Performance of the Receiver
Jishnu Nambissan T., Ravi Subrahmanyan, R. Somashekar +6
SARAS is an ongoing experiment aiming to detect the redshifted global 21-cm signal expected from Cosmic Dawn (CD) and the Epoch of Reionization (EoR). Standard cosmological models…
SARAS CD/EoR Radiometer: Design and performance of the Digital Correlation Spectrometer
B. S. Girish, K. S. Srivani, Ravi Subrahmanyan +6
In the currently accepted model for cosmic baryon evolution, Cosmic Dawn and the Epoch of Reionization are significant times when first light from the first luminous objects emerge…
The Murchison Widefield Array Transients Survey (MWATS). A search for low frequency variability in a bright Southern hemisphere sample
M. E. Bell, Tara Murphy, P. J. Hancock +38
We report on a search for low-frequency radio variability in 944 bright (> 4Jy at 154 MHz) unresolved, extragalactic radio sources monitored monthly for several years with the Murc…
A Large Scale, Low Frequency Murchison Widefield Array Survey of Galactic HII regions between 260< l <\340
L. Hindson, M. Johnston-Hollitt, N. Hurley-Walker +40
We have compiled a catalogue of HII regions detected with the Murchison Widefield Array (MWA) between 72 and 231MHz. The multiple frequency bands provided by the MWA allow us ident…
Time-domain and spectral properties of pulsars at 154 MHz
M. E. Bell, Tara Murphy, S. Johnston +35
We present 154 MHz Murchison Widefield Array imaging observations and variability information for a sample of pulsars. Over the declination range we…