Dr Divyajyoti Divyajyoti
(she/her)
BTech, PhD
Teams and roles for Divyajyoti Divyajyoti
Research Associate
Gravity Exploration InstituteAcademic and research staff
Overview
I am a researcher in gravitational wave astrophysics. I focus on the analysis of real gravitational wave signals as well as simulated data to infer the properties of gravitational wave sources.
I am particularly interested in binary black hole mergers with eccentric orbits or highly misaligned spins since these signatures can indicate that the binaries were formed in dynamical environments.
I am also interested in understanding the waveform systematics and current data analysis methods limitations for the next generation of gravitational wave detectors.
Publication
2025
- Das, R., Gayathri, V., Divyajyoti, D., Jose, S., Bartos, I., Klimenko, S. and Kant Mishra, C. 2025. Inferring additional physics through unmodelled signal reconstructions. [Online]. arXiv. (10.48550/ARXIV.2412.11749) Available at: https://arxiv.org/abs/2412.11749
2024
- Paul, K. et al. 2024. ESIGMAHM: an eccentric, spinning inspiral-merger-ringdown waveform model with higher modes for the detection and characterization of binary black holes. [Online]. Cornell University. (10.48550/arXiv.2409.13866) Available at: https://doi.org/10.48550/arXiv.2409.13866
- Divyajyoti, D. 2024. Synergies in analysing binary black hole mergers: Effect of orbital eccentricity, spin-precession, and non-quadrupole modes. PhD Thesis, Indian Institute of Technology Madras.
- Divyajyoti, D., Kumar, S., Tibrewal, S., Romero-Shaw, I. M. and Kant Mishra, C. 2024. Blind spots and biases: the dangers of ignoring eccentricity in gravitational-wave signals from binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 109(4), article number: 43037. (10.1103/PhysRevD.109.043037)
- Divyajyoti, D., Krishnendu, N., Saleem, M., Colleoni, M., Vijaykumar, A., Arun, K. and Kant Mishra, C. 2024. Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements. Physical Review D (particles, fields, gravitation, and cosmology) 109(2), article number: 23016. (10.1103/PhysRevD.109.023016)
2022
- Chattaraj, A., RoyChowdhury, T., Divyajyoti, D., Kant Mishra, C. and Gupta, A. 2022. High accuracy post-Newtonian and numerical relativity comparisons involving higher modes for eccentric binary black holes and a dominant mode eccentric inspiral-merger-ringdown model. Physical Review D (particles, fields, gravitation, and cosmology) 106(12), article number: 124008. (10.1103/PhysRevD.106.124008)
- Kumar Singh, M., Divyajyoti, D., Kapadia, S. J., Shaikh, A. and Ajith, P. 2022. Improved early-warning estimates of luminosity distance and orbital inclination of compact binary mergers using higher modes of gravitational radiation. Monthly Notices of the Royal Astronomical Society 513(3), pp. 3798–3809. (10.1093/mnras/stac852)
2021
- Divyajyoti, D., Baxi, P., Mishra, C. K. and Arun, K. 2021. Detectability of gravitational higher order modes in the third-generation era. Physical Review D (particles, fields, gravitation, and cosmology) 104(8), article number: 84080. (10.1103/PhysRevD.104.084080)
Articles
- Divyajyoti, D., Kumar, S., Tibrewal, S., Romero-Shaw, I. M. and Kant Mishra, C. 2024. Blind spots and biases: the dangers of ignoring eccentricity in gravitational-wave signals from binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 109(4), article number: 43037. (10.1103/PhysRevD.109.043037)
- Divyajyoti, D., Krishnendu, N., Saleem, M., Colleoni, M., Vijaykumar, A., Arun, K. and Kant Mishra, C. 2024. Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements. Physical Review D (particles, fields, gravitation, and cosmology) 109(2), article number: 23016. (10.1103/PhysRevD.109.023016)
- Chattaraj, A., RoyChowdhury, T., Divyajyoti, D., Kant Mishra, C. and Gupta, A. 2022. High accuracy post-Newtonian and numerical relativity comparisons involving higher modes for eccentric binary black holes and a dominant mode eccentric inspiral-merger-ringdown model. Physical Review D (particles, fields, gravitation, and cosmology) 106(12), article number: 124008. (10.1103/PhysRevD.106.124008)
- Kumar Singh, M., Divyajyoti, D., Kapadia, S. J., Shaikh, A. and Ajith, P. 2022. Improved early-warning estimates of luminosity distance and orbital inclination of compact binary mergers using higher modes of gravitational radiation. Monthly Notices of the Royal Astronomical Society 513(3), pp. 3798–3809. (10.1093/mnras/stac852)
- Divyajyoti, D., Baxi, P., Mishra, C. K. and Arun, K. 2021. Detectability of gravitational higher order modes in the third-generation era. Physical Review D (particles, fields, gravitation, and cosmology) 104(8), article number: 84080. (10.1103/PhysRevD.104.084080)
Thesis
- Divyajyoti, D. 2024. Synergies in analysing binary black hole mergers: Effect of orbital eccentricity, spin-precession, and non-quadrupole modes. PhD Thesis, Indian Institute of Technology Madras.
Websites
- Das, R., Gayathri, V., Divyajyoti, D., Jose, S., Bartos, I., Klimenko, S. and Kant Mishra, C. 2025. Inferring additional physics through unmodelled signal reconstructions. [Online]. arXiv. (10.48550/ARXIV.2412.11749) Available at: https://arxiv.org/abs/2412.11749
- Paul, K. et al. 2024. ESIGMAHM: an eccentric, spinning inspiral-merger-ringdown waveform model with higher modes for the detection and characterization of binary black holes. [Online]. Cornell University. (10.48550/arXiv.2409.13866) Available at: https://doi.org/10.48550/arXiv.2409.13866
Biography
- 2024 - present : Research Associate at Cardiff University
- Jan - July 2024 : Postdoctoral Equivalent Fellow at Indian Institute of Technology (IIT) Madras, Chennai, India
- 2019 - 2024 : Ph.D. in Physics from IIT Madras with doctoral research focussed on Gravitational Wave Astrophysics
- 2019 : Final year of B. Tech. from IIT Madras
- 2015 - 2019 : B.Tech. in Engineering Physics from National Institute of Technology Agartala, India
Honours and awards
- Institute Research Award 2024 - awarded by Indian Institute of Technology Madras in recognition of excellent PhD work
Professional memberships
- Cosmic Explorer Consortium
- LIGO Scientific Collaboration
Contact Details
DivyajyotiD@cardiff.ac.uk
Queen's Buildings - North Building, Floor 2, Room N/2.06A, 5 The Parade, Newport Road, Cardiff, CF24 3AA
Queen's Buildings - North Building, Floor 2, Room N/2.06A, 5 The Parade, Newport Road, Cardiff, CF24 3AA
Research themes
Specialisms
- General relativity and gravitational waves