Tousif Islam (তৌসিফ ইসলাম)

Links to online collections of my papers:

• arXiv
• inSPIRE HEP database
• Google Scholar

Top 5 Short-Authored Papers by Citations

• 5. Tousif Islam, Vijay Varma, Jackie Lodman, Scott Field, Gaurav Khanna, Mark Scheel, Harald Pfeiffer, Davide Gerosa, and Lawrence Kidder, 'Eccentric binary black hole surrogate models for the gravitational waveform and remnant properties: comparable mass, nonspinning case'
  arXiv:2101.11798 [gr-qc] | Phys. Rev. D 103, 064022 | [131 citations]


• 4. Vijay Varma, Sylvia Biscoveanu, Tousif Islam, Feroz H. Shaik et al., 'Evidence of large recoil velocity from a black hole merger signal'
  arXiv:2201.01302 [gr-qc] | Phys. Rev. Lett. 128, 191102 | [86 citations]


• 3. Tousif Islam, Scott Field, Scott Hughes, Gaurav Khanna, Vijay Varma, Matthew Giesler, Mark Scheel, Lawrence Kidder, and Harald Pfeiffer, 'Surrogate model for gravitational wave signals from non-spinning, comparable-to-large-mass-ratio black hole binaries built on black hole perturbation theory waveforms calibrated to numerical relativity'
  arXiv:2204.01972 [gr-qc] | Phys. Rev. D 106, 104025 (Editor's Suggestion) | [76 citations]


• 2. Tousif Islam, Avi Vajpeyi, Feroz Shaik, Carl-Johan Haster, Vijay Varma, Scott Field, Jacob Lange, Richard O'Shaughnessy and Rory Smith, 'Analysis of GWTC-3 with fully precessing numerical relativity surrogate models'
  arXiv:2309.14473 [gr-qc] | Phys. Rev. D 112, 044001 | [38 citations]


• 1. Tousif Islam, Javier Roulet, Tejaswi Venumadhav, 'Factorized Parameter Estimation for Real-Time Gravitational Wave Inference'
  arXiv:2210.16278 [gr-qc] | Submitted to Physical Review D | [25 citations]

Papers on Gravitational Waves

★★★ Numerical Relativity ★★★

• 46. "Progenitor of the recoiling super-massive black hole RBH-1 identified using HST/JWST imaging",
  Tousif Islam, Tejaswi Venumadhav, Digvijay Wadekar;
  arXiv:2601.18986 [astro-ph] [Submitted to Phys. Rev. D]
  
• 45. "Accurate models for recoil velocity distribution in black hole mergers with comparable to extreme mass-ratios and their astrophysical implications",
  Tousif Islam, Digvijay Wadekar;
  arXiv:2511.11536 [gr-qc] [Submitted to Phys. Rev. D]
  
• 44. "Eccentric binary black holes: A new framework for numerical relativity waveform surrogates",
  Peter James Nee, Adhrit Ravichandran, Scott E. Field, Tousif Islam, Harald P. Pfeiffer, Vijay Varma et al;
  arXiv:2510.00106 [gr-qc] [Submitted to Phys. Rev. Letter]
  
• 43. "Data-driven extraction and phenomenology of eccentric harmonics in eccentric spinning binary black hole mergers",
  Tousif Islam, Tejaswi Venumadhav, Ajit Kumar Mehta, Isha Anantpurkar, Digvijay Wadekar, Javier Roulet, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga;
  arXiv:2509.20556 [gr-qc] [Submitted to Phys. Rev. D]
  
• 42. "The SXS Collaboration's third catalog of binary black hole simulations",
  SXS Collaboration (including Tousif Islam);
  arXiv:2505.13378 [gr-qc] [Submitted to Classical and Quantum Gravity]
  
• 41. "gwharmone: first data-driven surrogate for eccentric harmonics in binary black hole merger waveforms",
  Tousif Islam, Tejaswi Venumadhav, Ajit Kumar Mehta, Isha Anantpurkar, Digvijay Wadekar, Javier Roulet, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga;
  arXiv:2504.12420 [astro-ph.HE] [Submitted to Physical Review Letters]
  
• 40. "Data-driven extraction, phenomenology and modeling of eccentric harmonics in binary black hole merger waveforms",
  Tousif Islam, Tejaswi Venumadhav, Ajit Kumar Mehta, Isha Anantpurkar, Digvijay Wadekar, Javier Roulet, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga;
  arXiv:2504.12469 [gr-qc] | Phys. Rev. D 112, 044070
  
• 39. "Post-Newtonian theory-inspired framework for characterizing eccentricity in gravitational waveforms",
  Tousif Islam, Tejaswi Venumadhav;
  arXiv:2502.02739 [gr-qc] | Phys. Rev. D 112, 104039
  
• 38. "Universal phenomenological relations between spherical harmonic modes in non-precessing eccentric binary black hole merger waveforms",
  Tousif Islam, Tejaswi Venumadhav;
  arXiv:2408.14654 [gr-qc] | Phys. Rev. D 111, L081503
  
• 37. "Adding higher-order spherical harmonics in non-spinning eccentric binary black hole merger waveform models",
  Tousif Islam, Scott Field, Gaurav Khanna;
  arXiv:2408.02762 [gr-qc] | Phys. Rev. D 111, 124023
  
• 36. "Straightforward mode hierarchy in eccentric binary black hole mergers and associated waveform model",
  Tousif Islam;
  arXiv:2403.15506 [astro-ph.HE] [Submitted to Physical Review Letter]
  
• 35. "Study of eccentric binary black hole mergers using numerical relativity and an inspiral-merger-ringdown model",
  Tousif Islam;
  arXiv:2403.03487 [gr-qc] [Submitted to Physical Review D]
  
• 34. "Eccentric binary black hole surrogate models for the gravitational waveform and remnant properties: comparable mass, nonspinning case",
  Tousif Islam, Vijay Varma, Jackie Lodman, Scott E. Field, Gaurav Khanna, Mark A. Scheel, Harald P. Pfeiffer, Davide Gerosa, and Lawrence E. Kidder;
  arXiv:2101.11798 [gr-qc] | Phys. Rev. D 103, 064022
  

★★★ Black Hole Perturbation Theory ★★★

• 33. "Bayesian analysis of late-time tails in spin-aligned eccentric binary black hole mergers",
  Tousif Islam, Guglielmo Faggioli and Gaurav Khanna;
  arXiv:2511.21898 [gr-qc] [Submitted to Physical Review D]
  
• 32. "Consistency of spin effects between numerical relativity and perturbation theory for inspiraling comparable-mass black hole binaries",
  Tousif Islam, Gaurav Khanna, Scott Field;
  arXiv:2510.00531 [gr-qc] [Submitted to Phys. Rev. Letter]
  
• 31. "Gravitational wave surrogate model for spinning, intermediate mass ratio binaries based on perturbation theory and numerical relativity",
  Katie Rink, Ritesh Bachhar, Tousif Islam, Nur E.M. Rifat, Kevin Gonzalez-Quesada, Scott E. Field, Gaurav Khanna, Scott A. Hughes, Vijay Varma;
  arXiv:2407.18319 [gr-qc] | Phys. Rev. D 110 (2024) 12, 124069
  
• 30. "Gravitational waves from black hole emission",
  Tousif Islam, Gaurav Khanna and Steven L. Liebling;
  arXiv:2407.16989 [gr-qc] | Universe 11 (2025) 1, 21
  
• 29. "Phenomenology and origin of late-time tails in eccentric binary black hole mergers",
  Tousif Islam, Guglielmo Faggioli, Gaurav Khanna, Scott E. Field, Maarten van de Meent and Alessandra Buonanno;
  arXiv:2407.04682 [gr-qc] | Phys. Rev. D 112 (2025) 2, 024061
  
• 28. "Mapping between black-hole perturbation theory and numerical relativity II: gravitational-wave momentum",
  Tousif Islam;
  arXiv:2401.14532 [gr-qc] [Submitted to Physical Review D]
  
• 27. "Comparing numerical relativity and perturbation theory waveforms for a non-spinning equal-mass binary",
  Tousif Islam, Scott Field, Gaurav Khanna;
  arXiv:2312.01636 [gr-qc] [Invited paper]
  
• 26. "Mapping between black-hole perturbation theory and numerical relativity: gravitational-wave energy flux",
  Tousif Islam;
  arXiv:2310.05743 [gr-qc] [Submitted to Physical Review D]
  
• 25. "On the approximate relation between black-hole perturbation theory and numerical relativity",
  Tousif Islam, Gaurav Khanna;
  arXiv:2307.03155 [gr-qc] [Accepted in Physical Review D]
  
• 24. "Interplay between numerical relativity and perturbation theory: finite size effects",
  Tousif Islam, Gaurav Khanna;
  arXiv:2306.08767 [gr-qc] | Phys. Rev. D 108, 044012
  
• 23. "Interplay between numerical-relativity and black hole perturbation theory in the intermediate-mass-ratio regime",
  Tousif Islam;
  arXiv:2306.08771 [gr-qc] | Phys. Rev. D 108, 044013
  
• 22. "Remnant black hole properties from numerical relativity informed perturbation theory and implications for waveform modelling",
  Tousif Islam, Scott Field, Gaurav Khanna;
  arXiv:2301.07215 [gr-qc] | Phys. Rev. D 108, 064048
  
• 21. "Surrogate model for gravitational wave signals from non-spinning, comparable-to-large-mass-ratio black hole binaries built on black hole perturbation theory waveforms calibrated to numerical relativity",
  Tousif Islam, Scott Field, Scott Hughes, Gaurav Khanna, Vijay Varma, Matthew Giesler, Mark Scheel, Lawrence Kidder, and Harald Pfeiffer;
  arXiv:2204.01972 [gr-qc] | Phys. Rev. D 106, 104025 (Editor's Suggestion)
  
• 20. "Survey of gravitational wave memory in intermediate mass ratio binaries",
  Tousif Islam, Scott Field, Gaurav Khanna & Niels Warburton;
  arXiv:2109.00754 [gr-qc] | Phys. Rev. D 108, 024046
  

★★★ GW Astrophysics ★★★

• 19. "GWSurrogate: A Python package for gravitational wave surrogate models",
  Scott Field et al (including Tousif Islam);
  arXiv:2504.08839 [astro-ph.IM] | Journal of Open Source Softwares
  
• 18. "Analysis of GWTC-3 with fully precessing numerical relativity surrogate models",
  Tousif Islam, Avi Vajpeyi, Feroz Shaik, Carl-Johan Haster, Vijay Varma, Scott Field, Jacob Lange, Richard O'Shaughnessy and Rory Smith;
  arXiv:2309.14473 [gr-qc] | Phys. Rev. D 112, 044001
  
• 17. "Factorized Parameter Estimation for Real-Time Gravitational Wave Inference",
  Tousif Islam, Javier Roulet, Tejaswi Venumadhav;
  arXiv:2210.16278 [gr-qc] [Submitted to Physical Review D]
  
• 16. "Removing degeneracy and multimodality in gravitational wave source parameters",
  Javier Roulet, Seth Olsen, Jonathan Mushkin, Tousif Islam, Tejaswi Venumadhav, Barak Zackay, Matias Zaldarriaga;
  arXiv:2207.03508 [gr-qc] | Phys. Rev. D 106, 123015
  
• 15. "Evidence of large recoil velocity from a black hole merger signal",
  Vijay Varma, Sylvia Biscoveanu, Tousif Islam, Feroz H. Shaik et al.;
  arXiv:2201.01302 [gr-qc] | Phys. Rev. Lett. 128, 191102
  
• 14. "Applying higher-modes consistency test on GW190814: lessons on no-hair theorem, nature of the secondary compact object and waveform modeling",
  Tousif Islam;
  arXiv:2111.00111 [gr-qc] [Submitted to Physical Review D]
  
• 13. "High-precision source characterization of intermediate mass-ratio black hole coalescences with gravitational waves: The importance of higher-order multipoles",
  Tousif Islam, Scott Field, Carl-Johan Haster & Rory Smith;
  arXiv:2105.04422 [gr-qc] | Phys. Rev. D 104, 084068
  
• 12. "Improved analysis of GW190412 with a precessing numerical relativity surrogate waveform model",
  Tousif Islam, Scott Field, Carl-Johan Haster & Rory Smith;
  arXiv:2010.04848 [gr-qc] | Phys. Rev. D 103, 104027
  
• 11. "Testing the "No-hair" nature of binary black holes using the consistency of multipolar gravitational radiation",
  Tousif Islam, Ajit K. Mehta, Abhirup Ghosh, Vijay Varma, P. Ajith & B. S. Sathyaprakash;
  arXiv:1910.14259 [gr-qc] | Phys. Rev. D 101, 024032
  

★★★ GW Detection and Population ★★★

• 10. "Binary black hole population inference combining confident and marginal events from the IAS-HM search pipeline",
  Ajit Kumar Mehta, Digvijay Wadekar, Isha Anantpurkar, Javier Roulet, Tejaswi Venumadhav, Tousif Islam, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga;
  arXiv:2508.15350 [gr-qc] [Submitted to Phys. Rev. D]
  
• 9. "Improving gravitational wave search sensitivity with TIER: Trigger Inference using Extended strain Representation",
  Digvijay Wadekar, Arush Pimpalkar, Mark Ho-Yeuk Cheung, Benjamin Wandelt, Emanuele Berti, Ajit Kumar Mehta, Tejaswi Venumadhav, Javier Roulet, Tousif Islam, Barak Zackay, Jonathan Mushkin, Matias Zaldarriaga;
  arXiv:2507.08318 [gr-qc] [Submitted to Physical Review D]
  
• 8. "Searching for intermediate mass ratio binary black hole mergers in the third observing run of LIGO-Virgo-KAGRA",
  Mark Ho-Yeuk Cheung, Digvijay Wadekar, Ajit Kumar Mehta, Tousif Islam, Javier Roulet, Emanuele Berti, Tejaswi Venumadhav, Barak Zackay, Matias Zaldarriaga;
  arXiv:2505.13378 [gr-qc] [Submitted to Physical Review D]
  
• 7. "Significant increase in sensitive volume of a gravitational wave search upon including higher harmonics",
  Ajit Kumar Mehta, Digvijay Wadekar, Javier Roulet, Isha Anantpurkar, Tejaswi Venumadhav, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga, Tousif Islam;
  arXiv:2501.17939 [gr-qc] [Submitted to Physical Review Letter]
  

Papers on Beyond General Relativity

• 6. "White dwarf mass-radius relation in theories beyond general relativity",
  Khursid Alam and Tousif Islam;
  JCAP 08 (2023) 081; arXiv:2301.08677 [astro-ph.GA]
  
• 5. "Testing Modified gravity with the Acceleration Relations in the Milky Way",
  Tousif Islam and Koushik Dutta,
  Phys. Rev. D 101, 084015 (2020); arXiv:1911.11836 [astro-ph.GA]
  
• 4. "Enigmatic Velocity Dispersions of Ultra-Diffuse Galaxies in Light of Modified gravity Theories and Radial Acceleration Relation",
  Tousif Islam,
  Phys. Rev. D 102, 024068 (2020); arXiv:1910.09726 [gr-qc]
  
• 3. "Modified Gravity Theories in Light of the Anomalous Velocity Dispersion of NGC1052-DF2",
  Tousif Islam and Koushik Dutta,
  Phys. Rev. D 100, 104049 (2019); arXiv:1908.07160 [gr-qc]
  
• 2. "Globular clusters as a probe for Weyl Conformal Gravity",
  Tousif Islam,
  Monthly Notices of the Royal Astronomical Society, Volume 488, Issue 4, October 2019; arXiv:1811.00065 [gr-qc]
  
• 1. "Testing Weyl Gravity at Galactic and Extra-galactic scales",
  Tousif Islam and Koushik Dutta,
  Phys. Rev. D 98, 124012 (2018); arXiv:1808.06923 [gr-qc]
  

PhD Thesis in Computational Sciences (2023)

• "Connecting numerical relativity, perturbation theory, and gravitational waves astrophysics",
  Tousif Islam,
  University of Massachusetts Dartmouth (2023)
  

Masters Thesis in Data Science (2023)

• "Differentiable numerical relativity surrogate waveform models",
  Tousif Islam,
  University of Massachusetts Dartmouth (2023)
  

Masters Thesis in Physics (2018)

• "Cosmological and Astrophysical Viability of Weyl Gravity",
  Tousif Islam,
  Indian Institute of Science Education and Research Kolkata (2018)