activity
20002023
most citedAccretion flow dynamics during the evolution of timing and spectral properties of GX 339-4 during its 2010-11 outburst

171 citations · 1.9k across the 85 of their papers we have counts for

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12 papers · 1 filter

astro-ph.IM2023

AOTF based spectro-polarimeter for observing Earth as an Exoplanet

Bhavesh Jaiswal, Swapnil Singh, Anand Jain +2

Earth is the only known habitable planet and it serves as a testbed to benchmark the observations of temperate and more Earth-like exoplanets. It is required to observe the disc-in…

astro-ph.IM2010★ 7 cited

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation V: Onboard software, Data Structure, Telemetry and Telecommand

S. Sreekumar, P. Vinod, Essy Samuel +9

The onboard software and data communication in the RT-2 Experiment onboard the Coronas-Photon satellite is organized in a hierarchical way to effectively handle and communicate asy…

astro-ph.IM2010★ 16 cited

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation IV: Background Simulations using GEANT-4 Toolkit

Ritabrata Sarkar, Samir Mandal, Dipak Debnath +4

Hard X-ray detectors in space are prone to background signals due to the ubiquitous cosmic rays and cosmic diffuse background radiation that continuously bombards the satellites wh…

astro-ph.IM2010★ 14 cited

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation III: Coded Aperture Mask and Fresnel Zone Plates in RT-2/CZT Payload

Anuj Nandi, S. Palit, D. Debnath +7

Imaging in hard X-rays of any astrophysical source with high angular resolution is a challenging job. Shadow-casting technique is one of the most viable options for imaging in hard…

astro-ph.IM2010★ 17 cited

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation II: RT-2/CZT payload

Tilak B. Kotoch, Anuj Nandi, D. Debnath +6

Cadmium Zinc Telluride (CZT) detectors are high sensitivity and high resolution devices for hard X-ray imaging and spectroscopic studies. The new series of CZT detector modules (OM…

astro-ph.IM2010★ 6 cited

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation I: Ground calibration of RT-2/S and RT-2/G

Dipak Debnath, Anuj Nandi, A. R. Rao +6

Phoswich detectors (RT-2/S & RT-2/G) are major scientific payloads of the RT-2 Experiment onboard the CORONAS-PHOTON mission, which was launched into a polar Low Earth Orbit of aro…

astro-ph.IM2009

X-ray experiments for Space applications in intermediate energy range

Vipin K. Yadav, Sandip K. Chakrabarti, Anuj Nandi +1

X-ray experiments in the intermediate energy range (1-50 keV) are carried out at the Indian Centre for Space Physics (ICSP), Kolkata for space application. The purpose is to carry…

astro-ph.IM2009

Fresnel Zone Plate Telescopes as high resolution imaging devices

Sandip K. Chakrabarti, Sourav Palit, Anuj Nandi +2

Combination of Fresnel Zone Plates (FZP) can make excellent telescopes for imaging in X-rays. We present the results of our experiments with such telescopes with an X-ray source ke…

astro-ph.IM2009★ 7 cited

Indian Payloads (RT-2 Experiment) Onboard CORONAS-PHOTON Mission

Anuj Nandi, A. R. Rao, Sandip K. Chakrabarti +7

RT-2 Experiment (RT - Roentgen Telescope) is a low energy gamma-ray instrument which is designed and developed as a part of Indo-Russian collaborative project of CORONAS-PHOTON Mis…

astro-ph.IM2009★ 2 cited

Fresnel zone plate telescopes for X-ray imaging II: numerical simulations with parallel and diverging beams

S. Palit, Sandip K. Chakrabarti, D. Debnath +4

We present the results of simulations of shadows cast by a zone plate telescope which may have one to four pairs of zone plates. From the shadows we reconstruct the images under va…

astro-ph.IM2009★ 11 cited

Fresnel zone plate telescopes for X-ray imaging I: experiments with a quasi-parallel beam

Sandip K. Chakrabarti, S. Palit, D. Debnath +3

Combination of Fresnel Zone Plates (FZP) can make an excellent telescope for imaging in X-rays. We present here the results of our experiments with several pairs of tungsten made F…

astro-ph.IM2009

Fresnel zone plates for Achromatic Imaging Survey of X-ray sources

S. Palit, S. K. Chakrabarti, D. Debnath +2

A telescope with Fresnel Zone Plates has been contemplated to be an excellent imaging mask in X-rays and gamma-rays for quite some time. With a proper choice of zone plate material…