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Tirthankar Roy Choudhury

0000-0001-7462-8587
astro-ph.COastro-ph.GAastro-phgr-qcastro-ph.HEhep-phhep-thastro-ph.IMhep-exphysics.hist-ph

On Valency

published · living versions
W_unu28bt7·v1 · currentpublished
Why a Multi-Cycle Treasury Program is Essential to Maximize JWST's Scientific Contributions to Galaxy Formation
with Genesis Community, Alice Shapley, Steven L. Finkelstein, Rachel S. Somerville +416
1 version

Preprints & journals

145 papers in the corpus · 2000–2026
SCRIPT in the Cosmic Dawn: Distinguishing Redshift-Evolving Galaxy Populations with 21-cm Fluctuations2608.03441v1 · Janakee Raste, Tirthankar Roy Choudhury2026 · 0 citationsarXiv
Square Kilometer Array Synergies for the Epoch of Reionization and Cosmic Dawn2606.30947v1 · Anirban Chakraborty, Tirthankar R. Choudhury, Kanan K. Datta et al.2026 · 0 citationsarXiv
Overview of 21cm Experiments at high redshift with SKAO2606.26435v2 · EoR/CD Science Working Group, Gianni Bernardi, Daniela Breitman et al.2026 · 0 citationsarXiv
Reconciling large-scale Lyman-α\alpha correlations with the SCRIPT Semi-numerical Model2606.08368v2 · Saptarshi Sarkar, Tirthankar Roy Choudhury2026 · 0 citationsJCAP10(2026)046
Nearest Neighbour-Based Statistics for 21cm-Galaxy Cross-Correlations in the Epoch of Reionization2602.15803v2 · Anirban Chakraborty, Kwanit Gangopadhyay, Arka Banerjee et al.2026 · 0 citationsJCAP06(2026)072
Gravitational Wave Informed Inference of 21-cm Global Signal Parameters2602.07631v2 · Avinash Tiwari, Sajad A. Bhat, Tirthankar Roy Choudhury et al.2026 · 0 citationsMon Not R Astron Soc (2026)
Accelerating reionization constraints: An ANN-emulator framework for the SCRIPT Semi-numerical Model2511.16256v2 · Saptarshi Sarkar, Tirthankar Roy Choudhury2025 · 0 citationsarXiv
ELAIS-N1 deep field uGMRT Band-2: constraints on diffuse Galactic synchrotron emission power spectrum2511.02375v2 · Rashmi Sagar, Abhirup Datta, Arnab Chakraborty et al.2025 · 1 citationarXiv
Can an Anti-de Sitter Vacuum in the Dark Energy Sector Explain JWST High-Redshift Galaxy and Reionization Observations?2509.02431v2 · Anirban Chakraborty, Tirthankar Roy Choudhury, Anjan Ananda Sen et al.2025 · 5 citationsarXiv
A White Paper on The Multi-Messenger Science Landscape in India2505.24408v1 · Samsuzzaman Afroz, Sanjib Kumar Agarwalla, Dipankar Bhattacharya et al.2025 · 0 citationsarXiv
Capturing Small-Scale Reionization Physics: A Sub-Grid Model for Photon Sinks with SCRIPT2504.03384v2 · Tirthankar Roy Choudhury, Anirban Chakraborty2025 · 5 citationsarXiv
Probing Reionization-Era Galaxies with JWST UV Luminosity Functions and Large-Scale Clustering2503.07590v2 · Anirban Chakraborty, Tirthankar Roy Choudhury2025 · 8 citationsJCAP01(2026)008
Reionization and its sources2502.12004v1 · Anirban Chakraborty, Tirthankar Roy Choudhury2025 · 0 citationsarXiv
Accelerating HI density predictions during the Epoch of Reionization using a GPR-based emulator on N-body simulations2412.03485v2 · Gaurav Pundir, Aseem Paranjape, Tirthankar Roy Choudhury2024 · 2 citationsJCAP06(2025)045
Efficient hybrid technique for generating sub-grid haloes in reionization simulations2407.10585v3 · Ankur Barsode, Tirthankar Roy Choudhury2024 · 2 citationsarXiv
Modelling the star-formation activity and ionizing properties of high-redshift galaxies2404.02879v3 · Anirban Chakraborty, Tirthankar Roy Choudhury2024 · 15 citationsJCAP07(2024)078
Simulating the epoch of Helium Reionization in photon-conserving semi-numerical code SCRIPT2402.03794v3 · Akanksha Kapahtia, Tirthankar Roy Choudhury2024 · 4 citationsarXiv
A GPR-Based Emulator for Semi-numerical Reionization Code SCRIPT: Parameter Inference from 21 cm Data2311.04556v2 · T. Roy Choudhury, A. Paranjape, B. Maity2023 · 8 citationsarXiv
Probing the Physics of Reionization Using kSZ Power Spectrum from Current and Upcoming CMB Surveys2311.00315v2 · Divesh Jain, Tirthankar Roy Choudhury, Srinivasan Raghunathan et al.2023 · 0 citationsarXiv
Covariance matrices for the Lyman-α\alpha forest using the lognormal approximation2310.16464v2 · Bhaskar Arya, Aseem Paranjape, Tirthankar Roy Choudhury2023 · 2 citationsarXiv
A modified lognormal approximation of the Lyman-α\alpha forest: comparison with full hydrodynamic simulations at 2≤z≤2.72\leq z\leq 2.72310.12720v2 · Bhaskar Arya, Tirthankar Roy Choudhury, Aseem Paranjape et al.2023 · 0 citationsarXiv
Disentangling patchy reionization signatures from primordial gravitational waves using CMB EE-mode and BB-mode polarization2308.09446v2 · Divesh Jain, Suvodip Mukherjee, Tirthankar Roy Choudhury2023 · 7 citationsarXiv
A fast method of reionization parameter space exploration using GPR trained SCRIPT2305.04839v2 · Barun Maity, Aseem Paranjape, Tirthankar Roy Choudhury2023 · 10 citationsarXiv
Warm Dark Matter constraints from the joint analysis of CMB, Lyman-α\alpha, and global 21 cm data2304.09810v2 · Atrideb Chatterjee, Tirthankar Roy Choudhury2023 · 0 citationsarXiv
Efficient exploration of reionization parameters for the upcoming 21 cm observations using a photon conserving semi-numerical model SCRIPT2211.12909v2 · Barun Maity, Tirthankar Roy Choudhury2022 · 10 citationsarXiv
A framework to mitigate patchy reionization contamination on the primordial gravitational wave signal2209.12672v2 · Divesh Jain, Tirthankar Roy Choudhury, Suvodip Mukherjee et al.2022 · 7 citationsarXiv
A Short Introduction to Reionization Physics2209.08558v1 · Tirthankar Roy Choudhury2022 · 34 citationsGeneral Relativity and Gravitation, 54, 102 (2022)
Lognormal semi-numerical simulations of the Lyman-α\alpha forest: comparison with full hydrodynamic simulations2206.08013v2 · Bhaskar Arya, Tirthankar Roy Choudhury, Aseem Paranjape et al.2022 · 4 citationsarXiv
Constraining the reionization and thermal history of the Universe using a semi-numerical photon-conserving code SCRIPT2204.05268v2 · Barun Maity, Tirthankar Roy Choudhury2022 · 21 citationsarXiv
Cosmic backgrounds from the radio to the far-infrared: recent results and perspectives from cosmological and astrophysical surveys2111.11472v2 · Carlo Burigana, Elia Sefano Battistelli, Laura Bonavera et al.2021 · 1 citationarXiv
The impact of black hole feedback on the UV luminosity and stellar mass assembly of high-redshift galaxies2111.03105v2 · Olmo Piana, Pratika Dayal, Tirthankar Roy Choudhury2021 · 14 citationsarXiv
Probing the thermal history during reionization using a semi-numerical photon-conserving code SCRIPT2110.14231v2 · Barun Maity, Tirthankar Roy Choudhury2021 · 26 citationsarXiv
The Life and Science of Thanu Padmanabhan2110.03208v1 · Jasjeet Singh Bagla, Krishnakanta Bhattacharya, Sumanta Chakraborty et al.2021 · 2 citationsarXiv
The distribution of HI velocity profiles in a Λ\LambdaCDM universe2105.04570v1 · Aseem Paranjape (IUCAA), R. Srianand (IUCAA), Tirthankar Roy Choudhury (NCRA-TIFR) et al.2021 · 2 citationsarXiv
CosmoReionMC: A package for estimating cosmological and astrophysical parameters using CMB, Lyman-{\alpha} absorption and global 21 cm data2101.11088v2 · Atrideb Chatterjee, Tirthankar Roy Choudhury, Sourav Mitra2021 · 26 citationsarXiv
Prospects of constraining reionization model parameters using Minkowski tensors and Betti numbers2101.03962v2 · Akanksha Kapahtia, Pravabati Chingangbam, Raghunath Ghara et al.2021 · 35 citationsarXiv
Multi-wavelength mock galaxy catalogs of the low-redshift Universe2101.02717v2 · Aseem Paranjape (IUCAA), Tirthankar Roy Choudhury (NCRA-TIFR), Ravi K. Sheth (UPenn/ICTP)2021 · 21 citationsarXiv
Using Artificial Neural Networks to extract the 21-cm Global Signal from the EDGES data2012.00028v1 · Madhurima Choudhury, Atrideb Chatterjee, Abhirup Datta et al.2020 · 16 citationsarXiv
The mass assembly of high-redshift black holes2009.13505v2 · Olmo Piana, Pratika Dayal, Marta Volonteri et al.2020 · 37 citationsarXiv
A consistent and robust measurement of the thermal state of the IGM at 2≤z≤42 \leq z \leq 4 from a large sample of Lyα\alpha forest spectra: Evidence for late and rapid HeII reionization2009.00016v2 · Prakash Gaikwad, Raghunathan Srianand, Martin G. Haehnelt et al.2020 · 99 citationsarXiv
CMB constraints on a physical model of reionization2007.03705v2 · Tirthankar Roy Choudhury, Suvodip Mukherjee, Sourabh Paul2020 · 24 citationsarXiv
Dark matter annihilation in ω\omega Centauri: Astrophysical implications derived from the MWA radio data2005.11962v2 · Arpan Kar, Biswarup Mukhopadhyaya, Steven Tingay et al.2020 · 7 citationsarXiv
Inevitable imprints of patchy reionization on the cosmic microwave background anisotropy2005.05327v2 · Sourabh Paul, Suvodip Mukherjee, Tirthankar Roy Choudhury2020 · 21 citationsMNRAS, 2021, 500, 1, 232-246
Three- and two-point spatial correlations of IGM at z∼2z\sim 2: Cloud based analysis using simulations2005.05346v1 · Soumak Maitra, Raghunathan Srianand, Prakash Gaikwad et al.2020 · 7 citationsarXiv
Probing the large scale structure using gravitational-wave observations of binary black holes2005.01111v2 · Aditya Vijaykumar, M. V. S. Saketh, Sumit Kumar et al.2020 · 28 citationsarXiv
Astraeus II: Quantifying the impact of cosmic variance during the Epoch of Reionization2004.11096v2 · Graziano Ucci, Pratika Dayal, Anne Hutter et al.2020 · 31 citationsarXiv
Studying the Lyman-α\alpha optical depth fluctuations at z∼5.5z \sim 5.5 using fast semi-numerical methods2003.08958v3 · T. Roy Choudhury, Aseem Paranjape, Sarah E. I. Bosman2020 · 59 citationsarXiv
A hint on the metal-free star formation rate density from 21cm-EDGES data2003.05911v2 · Atrideb Chatterjee, Pratika Dayal, Tirthankar Roy Choudhury et al.2020 · 28 citationsarXiv
Reionization with galaxies and active galactic nuclei2001.06021v2 · Pratika Dayal, Marta Volonteri, Tirthankar Roy Choudhury et al.2020 · 116 citationsarXiv
Bayesian approach to constraining the properties of ionized bubbles during reionization1909.12317v2 · Raghunath Ghara, T. Roy Choudhury2019 · 14 citationsarXiv
Career total: 194 works. 145 are in this corpus.Showing the 50 most recent.

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