![Divyajyoti Divyajyoti BTech, PhD](https://profiles-cardiff.imgix.net/attachments/6941?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
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
2026
- Abac, A. G. et al., 2026. Constraints on gravitational waves from the 2024 Vela pulsar glitch. The Astrophysical Journal 1005 (1) 12. (10.3847/1538-4357/ae63bc)
- Abac, A. G. et al., 2026. GW230814: Investigation of a loud gravitational-wave signal observed with a single detector. The Astrophysical Journal Letters 1004 (2) L23. (10.3847/2041-8213/ae2ad3)
- Abac, A. G. et al., 2026. Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run. The Astrophysical Journal 1004 (2) 232. (10.3847/1538-4357/ae211e)
- Gottschlich, N. et al., 2026. Radio follow up of a sub-threshold GRB in the sky localization area of GW241125. arXiv (10.48550/arXiv.2606.20885)
- Al-Shammari, S. et al. 2026. Searches for continuous gravitational waves from supernova remnants in the first part of the LIGO-Virgo-KAGRA fourth observing run. The Astrophysical Journal 1004 (2) 204. (10.3847/1538-4357/ae6263)
- Divyajyoti, D. et al. 2026. Mapping the star formation peak with LIGO A# and Next-Generation detectors. (10.48550/arXiv.2606.05151)
- Divyajyoti, D. et al. 2026. Biased parameter inference of eccentric, spin-precessing binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 113 (10) 103022. (10.1103/jdkc-65lz)
- Abac, A. et al., 2026. All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 113 (8) 082004. (10.1103/83j3-pgk1)
- Abac, A. G. et al., 2026. Black hole spectroscopy and tests of general relativity with GW250114. Physical Review Letters 136 (4) 041403. (10.1103/6c61-fm1n)
2025
- al-Shammari, S. et al. 2025. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 112 102005. (10.1103/wjdz-jdby)
- Al-Shammari, S. et al. 2025. GW231123: A binary black hole merger with total mass 190–265 M⊙. The Astrophysical Journal Letters 993 (1) L25. (10.3847/2041-8213/ae0c9c)
- Al-Shammari, S. et al. 2025. GW241011 and GW241110: Exploring binary formation and fundamental physics with asymmetric, high-spin black hole coalescences. The Astrophysical Journal Letters 993 L21. (10.3847/2041-8213/ae0d54)
- Das, R. et al., 2025. Inferring additional physics through unmodeled signal reconstructions. Physical Review D (particles, fields, gravitation, and cosmology) 112 (2) 023011. (10.1103/3rmv-b2cq)
- Paul, K. et al., 2025. Eccentric, spinning, inspiral-merger-ringdown waveform model with higher modes for the detection and characterization of binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 111 084074. (10.1103/PhysRevD.111.084074)
2024
- Divyajyoti, D. et al. 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) 043037. (10.1103/PhysRevD.109.043037)
- Divyajyoti, D. et al. 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) 023016. (10.1103/PhysRevD.109.023016)
- 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.
2022
- Chattaraj, A. et al., 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) 124008. (10.1103/PhysRevD.106.124008)
- Kumar Singh, M. et al., 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. et al. 2021. Detectability of gravitational higher order modes in the third-generation era. Physical Review D (particles, fields, gravitation, and cosmology) 104 (8) 084080. (10.1103/PhysRevD.104.084080)
Articles
- Abac, A. G. et al., 2026. Constraints on gravitational waves from the 2024 Vela pulsar glitch. The Astrophysical Journal 1005 (1) 12. (10.3847/1538-4357/ae63bc)
- Abac, A. G. et al., 2026. GW230814: Investigation of a loud gravitational-wave signal observed with a single detector. The Astrophysical Journal Letters 1004 (2) L23. (10.3847/2041-8213/ae2ad3)
- Abac, A. G. et al., 2026. Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run. The Astrophysical Journal 1004 (2) 232. (10.3847/1538-4357/ae211e)
- Gottschlich, N. et al., 2026. Radio follow up of a sub-threshold GRB in the sky localization area of GW241125. arXiv (10.48550/arXiv.2606.20885)
- Al-Shammari, S. et al. 2026. Searches for continuous gravitational waves from supernova remnants in the first part of the LIGO-Virgo-KAGRA fourth observing run. The Astrophysical Journal 1004 (2) 204. (10.3847/1538-4357/ae6263)
- Divyajyoti, D. et al. 2026. Mapping the star formation peak with LIGO A# and Next-Generation detectors. (10.48550/arXiv.2606.05151)
- Divyajyoti, D. et al. 2026. Biased parameter inference of eccentric, spin-precessing binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 113 (10) 103022. (10.1103/jdkc-65lz)
- Abac, A. et al., 2026. All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 113 (8) 082004. (10.1103/83j3-pgk1)
- Abac, A. G. et al., 2026. Black hole spectroscopy and tests of general relativity with GW250114. Physical Review Letters 136 (4) 041403. (10.1103/6c61-fm1n)
- al-Shammari, S. et al. 2025. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 112 102005. (10.1103/wjdz-jdby)
- Al-Shammari, S. et al. 2025. GW231123: A binary black hole merger with total mass 190–265 M⊙. The Astrophysical Journal Letters 993 (1) L25. (10.3847/2041-8213/ae0c9c)
- Al-Shammari, S. et al. 2025. GW241011 and GW241110: Exploring binary formation and fundamental physics with asymmetric, high-spin black hole coalescences. The Astrophysical Journal Letters 993 L21. (10.3847/2041-8213/ae0d54)
- Das, R. et al., 2025. Inferring additional physics through unmodeled signal reconstructions. Physical Review D (particles, fields, gravitation, and cosmology) 112 (2) 023011. (10.1103/3rmv-b2cq)
- Paul, K. et al., 2025. Eccentric, spinning, inspiral-merger-ringdown waveform model with higher modes for the detection and characterization of binary black holes. Physical Review D (particles, fields, gravitation, and cosmology) 111 084074. (10.1103/PhysRevD.111.084074)
- Divyajyoti, D. et al. 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) 043037. (10.1103/PhysRevD.109.043037)
- Divyajyoti, D. et al. 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) 023016. (10.1103/PhysRevD.109.023016)
- Chattaraj, A. et al., 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) 124008. (10.1103/PhysRevD.106.124008)
- Kumar Singh, M. et al., 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. et al. 2021. Detectability of gravitational higher order modes in the third-generation era. Physical Review D (particles, fields, gravitation, and cosmology) 104 (8) 084080. (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.
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
[email protected]
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