TC
Tanmoy Chattopadhyay
astro-ph.IMastro-ph.HEphysics.ins-dethep-exhep-phastro-ph.SR
On Valency
published · living versionsW_9g9dw5z3·v1 · currentpublished
Magnetars as Astrophysical Laboratories of Extreme Quantum Electrodynamics: The Case for a Compton Telescope
with Zorawar Wadiasingh, George Younes, Matthew G. Baring, Alice K. Harding +12
1 version
Preprints & journals
59 papers in the corpus · 2015–2026Enhancing the sensitivity of next-generation X-ray imaging detectors with artificial intelligence and advanced event reconstruction algorithms2608.02748v1 · D. R. Wilkins, A. Poliszczuk, A. Y. Pan et al.2026 · 0 citationsProc. SPIE, 2026, 14146-248
Fast, low noise, megapixel detector and readout systems for future X-ray astronomy missions2608.02905v1 · Sven Herrmann, Peter Orel, Tanmoy Chattopadhyay et al.2026 · 0 citationsarXiv
Hard X-Ray Focal-Plane Compton Spectro-Polarimeter: Detector Development and Sensitivity Evaluation2608.01529v1 · Abhay Kumar, Tanmoy Chattopadhyay, Santosh V. Vadawale et al.2026 · 0 citationsarXiv
High-speed, low-noise, multi-megapixel CCDs for next generation X-ray observatories2607.27047v1 · Haley R. Stueber, Tanmoy Chattopadhyay, Peter Orel et al.2026 · 0 citationsarXiv
Advancing X-Ray Camera Front-End Electronics Architecture through the AXIS-TAP Technology Platform2607.26002v1 · Jill Juneau, Declan O'Neill, Peter Orel et al.2026 · 0 citationsarXiv
Output-Stage Design Optimization for High-Sensitivity SiSeRO CCDs and SiSeRO Active Pixel Sensors2607.23087v1 · Tanmoy Chattopadhyay, Sven Herrmann, Kevan Donlon et al.2026 · 0 citationsarXiv
The High-Speed FPGA Readout System for the Advanced X-ray Imaging Satellite (AXIS)2607.20380v1 · Declan O'Neill, Jill Juneau, Peter Orel et al.2026 · 0 citationsarXiv
RNDR noise modeling in first-generation Single electron Sensitive Readout (SiSeRO) devices2607.19615v1 · Tonya L. Peshel, Abigail Y. Pan, Tanmoy Chattopadhyay et al.2026 · 0 citationsarXiv
First results for second generation SiSeRO CCD devices2607.18430v1 · Abigail Y. Pan, Declan O'Neill, Kevan Donlon et al.2026 · 0 citationsarXiv
Can We Find the Emission Mechanism Behind the Extremely Bright GRB 230812B?2607.18437v1 · Utkarsh Pathak, Sameer K. Patil, Hitesh Tanenia et al.2026 · 0 citationsarXiv
Development of a one-dimensional position sensitive detector for Compton X-ray polarimeters2603.25078v1 · Abhay Kumar, Santosh V. Vadawale, N. P. S. Mithun et al.2026 · 0 citationsarXiv
The high-speed X-ray camera on AXIS: design and performance updates2508.14157v1 · Eric D. Miller, Catherine E. Grant, Robert Goeke et al.2025 · 0 citationsarXiv
Development and testing of integrated readout electronics for next generation SiSeRO (Single electron Sensitive Read Out) devices2508.14173v1 · Tanmoy Chattopadhyay, Haley R. Stueber, Abigail Y. Pan et al.2025 · 0 citationsarXiv
Fast, low noise CCD systems for future strategic x-ray missions2508.14174v1 · Haley R. Stueber, Abigail Y. Pan, Tanmoy Chattopadhyay et al.2025 · 0 citationsarXiv
Ground calibration plans for the AXIS high speed camera2508.14175v1 · Catherine E. Grant, Eric D. Miller, Marshall W. Bautz et al.2025 · 0 citationsarXiv
Design, development, and commissioning of a flexible test setup for the AXIS prototype detector2508.14177v1 · Abigail Y. Pan, Haley R. Stueber, Tanmoy Chattopadhyay et al.2025 · 0 citationsarXiv
Spectro-polarimetry of GRB 180427A: evidence for distinct emission sites with varying polarisation2501.09492v2 · Rushikesh Sonawane, Shabnam Iyyani, Soumya Gupta et al.2025 · 1 citationApJ, Vol. 990, Issue 2, Article 215 (Sept 2025)
Investigating Polarization characteristics of GRB200503A and GRB201009A2411.00410v1 · Divita Saraogi, Suman Bala, Jitendra Joshi et al.2024 · 0 citationsarXiv
Demonstrating sub-electron noise performance in Single electron Sensitive Readout (SiSeRO) devices2407.16754v1 · Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel et al.2024 · 3 citationsarXiv
The XOC X-ray Beamline: Probing Colder, Quieter, and Softer2407.16757v1 · Haley R. Stueber, Tanmoy Chattopadhyay, Sven C. Herrmann et al.2024 · 4 citationsarXiv
X-ray speed reading with the MCRC: prototype success and next generation upgrades2407.16759v1 · Peter Orel, Abigail Y. Pan, Sven Herrmann et al.2024 · 4 citationsarXiv
Continued developments in X-ray speed reading: fast, low noise readout for next-generation wide-field imagers2407.16761v2 · Sven Herrmann, Peter Orel, Tanmoy Chattopadhyay et al.2024 · 2 citationsarXiv
Augmenting astronomical X-ray detectors with AI for enhanced sensitivity and reduced background2407.16764v1 · D. R. Wilkins, A. Poliszczuk, B. Schneider et al.2024 · 2 citationsProc. SPIE, 2024, 13093-65
Towards efficient machine-learning-based reduction of the cosmic-ray induced background in X-ray imaging detectors: increasing context awareness2407.16768v1 · Artem Poliszczuk, Dan Wilkins, Steven W. Allen et al.2024 · 2 citationsarXiv
Localisation of Gamma Ray Bursts using AstroSat Mass Model2401.16404v1 · Divita Saraogi, J Venkata Aditya, Varun Bhalerao et al.2024 · 0 citationsarXiv
The high-speed X-ray camera on AXIS2309.00717v1 · Eric D. Miller, Marshall W. Bautz, Catherine E. Grant et al.2023 · 12 citationsarXiv
High hard X-ray polarization in Cygnus X-1 confined to the intermediate hard state: evidence for a variable jet component2306.04057v2 · Tanmoy Chattopadhyay, Abhay Kumar, A. R. Rao et al.2023 · 21 citationsAstrophysical Journal Letters, Volume 960, Number 1, L2, 2023 December 29
Demonstrating repetitive non-destructive readout (RNDR) with SiSeRO devices2305.01900v2 · Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel et al.2023 · 4 citationsJournal of Astronomical Telescopes, Instruments, and Systems, Vol. 10, Issue 1, 016004 (January 2024)
Improved noise performance from the next-generation buried-channel p-Mosfet SiSeROs2302.05820v2 · Tanmoy Chattopadhyay, Sven Herrmann, Matthew Kaplan et al.2023 · 8 citationsJournal of Astronomical Telescopes, Instruments, and Systems, Vol. 9, Issue 2, 026001 (May 2023)
Experimental verification of off-axis polarimetry with Cadmium Zinc Telluride detectors of AstroSat-CZT Imager2209.00222v1 · C. S. Vaishnava, N. P. S. Mithun, Santosh V. Vadawale et al.2022 · 3 citationsarXiv
Extending the energy range of AstroSat-CZTI up to 380 keV with Compton Spectroscopy2208.11476v1 · Abhay Kumar, Tanmoy Chattopadhyay, Santosh V. Vadawale et al.2022 · 1 citationarXiv
Reducing the background in X-ray imaging detectors via machine learning2208.07906v1 · D. R. Wilkins, S. W. Allen, E. D. Miller et al.2022 · 4 citationsProc. SPIE, 2022, 12181, 155
X-ray speed reading: enabling fast, low noise readout for next-generation CCDs2208.01247v1 · S. Herrmann, P. Orel, T. Chattopadhyay et al.2022 · 6 citationsarXiv
Single electron Sensitive Readout (SiSeRO) X-ray detectors: Technological progress and characterization2208.01082v1 · Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel et al.2022 · 8 citationsarXiv
Hard X-ray polarization catalog for a 5-year sample of Gamma-Ray Bursts using AstroSat CZT-Imager2207.09605v1 · Tanmoy Chattopadhyay, Soumya Gupta, Shabnam Iyyani et al.2022 · 41 citationsThe Astrophysical Journal, volume - 936, number -1, pages - 12, year - 2022
Gamma-Ray Polarimetry2205.02072v1 · Denis Bernard, Tanmoy Chattopadhyay, Fabian Kislat et al.2022 · 8 citationsarXiv
Development and characterization of a fast and low noise readout for the next generation X-ray CCDs2201.08880v1 · Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel et al.2022 · 4 citationsJournal of Astronomical Telescopes, Instruments, and Systems 8(2), 026005 (24 May 2022)
Probing into emission mechanisms of GRB 190530A using time-resolved spectra and polarization studies: Synchrotron Origin?2201.01167v1 · Rahul Gupta, S. Gupta, T. Chattopadhyay et al.2022 · 20 citationsarXiv
First results on SiSeRO (Single electron Sensitive Read Out) devices -- a new X-ray detector for scientific instrumentation2112.05033v1 · Tanmoy Chattopadhyay, Sven Herrmann, Barry Burke et al.2021 · 13 citationsJournal of Astronomical Telescopes, Instruments, and Systems, 8(2), 026006 (26 May 2022)
The AstroSat Mass Model: Imaging and Flux studies of off-axis sources with CZTI2105.09525v1 · Sujay Mate, Tanmoy Chattopadhyay, Varun Bhalerao et al.2021 · 14 citationsarXiv
Hard X-ray Polarimetry -- An overview of the method, science drivers and recent findings2104.05244v1 · Tanmoy Chattopadhyay2021 · 36 citationsJournal of Astrophysics and Astronomy, Volume 42, Issue 2, article id.82, Page 106, year 2021
Exploring Sub-MeV Sensitivity of AstroSat-CZTI for ON-axis Bright Sources2102.13593v1 · Abhay Kumar (1, Tanmoy Chattopadhyay, Santosh V Vadawale et al.2021 · 3 citationsarXiv
Sub-MeV spectroscopy with AstroSat-CZT Imager for Gamma Ray Bursts2102.13594v1 · Tanmoy Chattopadhyay, Soumya Gupta, Vidushi Sharma et al.2021 · 9 citationsJournal of Astrophysics and Astronomy, Volume 42, Issue 2, article id.82, year 2021
Tiny-box: A tool for the versatile development and characterization of low noise fast X-ray imaging detectors2012.07161v1 · Tanmoy Chattopadhyay, Sven Herrmann, Steven Allen et al.2020 · 7 citationsProc. SPIE 11454, X-Ray, Optical, and Infrared Detectors for Astronomy IX, 1145423, 2020
Identifying charged particle background events in X-ray imaging detectors with novel machine learning algorithms2012.01463v1 · D. R. Wilkins, S. W. Allen, E. D. Miller et al.2020 · 7 citationsProc. SPIE, 2020, 11444, 308
Spectro-polarimetric analysis of prompt emission of GRB 160325A: jet with evolving environment of internal shocks2003.02284v1 · Vidushi Sharma, Shabnam Iyyani, Dipankar Bhattacharya et al.2020 · 19 citationsarXiv
Time varying polarized gamma-rays from GRB 160821A: evidence for ordered magnetic fields1908.10885v1 · Vidushi Sharma, Shabnam Iyyani, Dipankar Bhattacharya et al.2019 · 51 citationsarXiv
Magnetars as Astrophysical Laboratories of Extreme Quantum Electrodynamics: The Case for a Compton Telescope1903.05648v1 · Zorawar Wadiasingh, George Younes, Matthew G. Baring et al.2019 · 17 citationsarXivon Valency
BlackCAT CubeSat: A Soft X-ray Sky Monitor, Transient Finder, and Burst Detector for High-energy and Multimessenger Astrophysics1807.03333v1 · Tanmoy Chattopadhyay, Abraham D. Falcone, David N. Burrows et al.2018 · 3 citationsarXiv
X-ray Hybrid CMOS Detectors: Recent Development and Characterization Progress1807.03351v3 · Tanmoy Chattopadhyay, Abraham D. Falcone, David N. Burrows et al.2018 · 11 citationsProc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106992E (6 July 2018)
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