218 citations · 519 across the 12 of their papers we have counts for
12 papers
Augmentation of the Gauribidanur radioheliograph for observations of circularly polarized emission from the solar corona at low radio frequencies
Sayuf Shaik, Kathiravan C, Gireesh G. V. S +4
The magnetic field strengths (B) in the solar photosphere are routinely measured using the Zeeman effect. However, such measurements are not available in the solar chromosphere and…
1-bit raw voltage recording system for dedicated observations of transients at low radio frequencies
Kshitij S. Bane, Indrajit V. Barve, G. V. S. Gireesh +2
Recently we had reported commissioning of a prototype for pulsar observations at low radio frequencies (<100 MHz) using log-periodic dipole antennas (LPDAs) in the Gauribidanur Rad…
High-Performance Computing for SKA Transient Search: Use of FPGA based Accelerators -- a brief review
R. Aafreen, R. Abhishek, B. Ajithkumar +34
This paper presents the High-Performance computing efforts with FPGA for the accelerated pulsar/transient search for the SKA. Case studies are presented from within SKA and pathfin…
A prototype for pulsar observations at low radio frequencies using log periodic dipole antennas
Kshitij S. Bane, Indrajit V. Barve, G. V. S. Gireesh +2
A prototype for dedicated observations of pulsars and other astrophysical transients in the frequency range 50\,-\,80\,MHz has been recently commissioned at the Gauribidanur radio…
Radio Interferometric Observations of the Sun Using Commercial Dish TV Antennas
G. V. S. Gireesh, C. Kathiravan, Indrajit V. Barve +1
The radio astronomy group in the Indian Institute of Astrophysics (IIA) has been carrying out routine observations of radio emission from the solar corona at low frequencies (${\ap…
Solar Radio Spectro-polarimetry (50-500 MHz) : Design and Development of Cross-Polarized Log-Periodic Dipole antenna and configuration of receiver system
Anshu Kumari, G. V. S. Gireesh, C. Kathiravan +2
A radio spectro-polarimeter was developed at the Gauribidanur radio observatory to study the characteristics of the polarized radio waves that are emitted by the impetuous solar co…
Additional Calibration of the Ultra-Violet Imaging Telescope on board AstroSat
S. N. Tandon, J. Postma, P. Joseph +20
Results of the initial calibration of the Ultra-Violet Imaging Telescope (UVIT) were reported earlier by Tandon et al. (2017). The results reported earlier were based on the ground…
In-orbit Calibrations of the Ultra-Violet Imaging Telescope
S. N. Tandon, Annapurni Subramaniam, V. Girish +22
The Ultra-Violet Imaging Telescope (UVIT) is one of the payloads in ASTROSAT, the first Indian Space Observatory. The UVIT instrument has two 375mm telescopes: one for the far-ultr…
In-orbit Performance of UVIT and First Results
S. N. Tandon, J. B. Hutchings, S. K. Ghosh +23
The performance of the ultraviolet telescope (UVIT) on-board ASTROSAT is reported. The performance in orbit is also compared with estimates made from the calibrations done on the g…
Design and performance of a low frequency cross-polarized log-periodic dipole antenna
K. Sasikumar Raja, C. Kathiravan, R. Ramesh +2
We report the design and performance of a cross-polarized log-periodic dipole (CLPD) antenna for observations of polarized radio emission from the solar corona at low frequencies.…
In-orbit Performance of UVIT on ASTROSAT
Annapurni Subramaniam, Shyam N. Tandon, John Hutchings +23
We present the in-orbit performance and the first results from the ultra-violet Imaging telescope (UVIT) on ASTROSAT. UVIT consists of two identical 38cm coaligned telescopes, one…
RRI-GBT Multi-Band Receiver: Motivation, Design & Development
Yogesh Maan, Avinash A. Deshpande, Vinutha Chandrashekar +32
We report the design and development of a self-contained multi-band receiver (MBR) system, intended for use with a single large aperture to facilitate sensitive & high time-resolut…