activity
19972024
most citedX-ray/UV/optical variability of NGC 4593 with Swift: Reprocessing of X-rays by an extended reprocessor

131 citations · 1.9k across the 115 of their papers we have counts for

collaborators

115 papers

astro-ph.HE2024

AstroSat Observations of the Dipping Low Mass X-ray Binary XB 1254-690

Nilam R. Navale, Devraj Pawar, A. R. Rao +4

XB 1254-690 is a neutron star low-mass X-ray binary with an orbital period of 3.88 hrs, and it exhibits energy-dependent intensity dips, thermonuclear bursts, and flares. We presen…

astro-ph.HE2023★ 16 cited

High hard X-ray polarization in Cygnus X-1 confined to the intermediate hard state: evidence for a variable jet component

Tanmoy Chattopadhyay, Abhay Kumar, A. R. Rao +7

Cygnus X-1, the well-known accreting black hole system, exhibits several observational features hinting at an intricate interplay between the accretion disk, its atmosphere known a…

astro-ph.IM2023

Space Astronomy at TIFR: From Balloons to Satellites

A. R. Rao

Tata Institute of Fundamental Research (TIFR) has a very long tradition of conducting space astronomy experiments. Within a few years of the discovery of the first non-solar X-ray…

astro-ph.IM2022

Experimental verification of off-axis polarimetry with Cadmium Zinc Telluride detectors of AstroSat-CZT Imager

C. S. Vaishnava, N. P. S. Mithun, Santosh V. Vadawale +10

The Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat consists of an array of a large number of pixellated CZT detectors capable of measuring the polarization of incident hard…

astro-ph.IM2022★ 1 cited

Extending the energy range of AstroSat-CZTI up to 380 keV with Compton Spectroscopy

Abhay Kumar, Tanmoy Chattopadhyay, Santosh V. Vadawale +4

The CZTI (Cadmium Zinc Telluride Imager) onboard AstroSat is a high energy coded mask imager and spectrometer in the energy range of 20 - 100 keV. Above 100 keV, the dominance of C…

astro-ph.HE2022★ 43 cited

Hard X-ray polarization catalog for a 5-year sample of Gamma-Ray Bursts using AstroSat CZT-Imager

Tanmoy Chattopadhyay, Soumya Gupta, Shabnam Iyyani +16

Cadmium Zinc Telluride Imager (CZTI) aboard AstroSat has been regularly detecting Gamma-Ray Bursts (GRBs) since its launch in 2015. Its sensitivity to polarization measurements at…