Prof. Soebur Razzaque

Distinguished Professor
Name: Soebur Razzaque
Location: C1 Lab 236 Auckland Park Kingsway Campus
CAPP Academic Staff, Physics Academic Staff  Staff Members

Contact Details:
Tel: 011 559 2330

Email: srazzaque@uj.ac.za

About Prof. Soebur Razzaque

NRF rating: B1

Field of Specialisation

Theory and computation in Astro-particle Physics and High-energy Astrophysics

• Neutrino, Cosmic-ray and Gamma-ray Astrophysics
• Multiwavelength and Multi-messenger Astronomy
• Neutrino Physics

Research Interests

Prof. Soebur Razzaque is a distinguished professor in the Department of Physics at the University of Johannesburg. He has held the position of professor since 2013 and has been the Director of the Centre for Astro-Particle Physics (CAPP) since 2018. Prof. Razzaque is also affiliated with George Washington University in DC, USA, where he conducts research visits.

Prof. Razzaque earned his BSc in Physics in 1994 and MSc in Physics in 1996, both from the University of Dhaka, Bangladesh. He received a Diploma in High Energy Physics from the International Centre for Theoretical Physics in Trieste, Italy, in 1997. He then completed his Ph.D. in Physics at the University of Kansas, Lawrence, Kansas, USA, in 2002.

Prof. Razzaque’s research interests lie in theory and computation, specifically in Astroparticle Physics and High-Energy Astrophysics. This includes Neutrino, Cosmic Rays, and Gamma-Ray Astrophysics, Neutrino Physics, and Multiwavelength and Multi-Messenger Astronomy.

While serving as a lecturer at CAPP, Prof. Razzaque has mentored postgraduate students and postdoctoral fellows and delivered lectures at undergraduate and postgraduate levels. Apart from his lecturing duties, he attends both local and international conferences to present his latest research findings and collaborate with other researchers and physicists.

Prof. Razzaque’s research publications are widely recognised, not only within his department and locally, but also through collaborations with international projects such as the Fermi Gamma-ray Space Telescope, the Cherenkov Telescope Array, and the KM3NeT Neutrino Telescope. In addition, Prof. Razzaque collaborates globally through his associations with MALBRICS and the Fermi-lat Collaboration. For more Information on Prof Razzaque’s research activities, visit this link.

Recent highlights/achievements (past 5-8 years)

Prof. Razzaque’s research article, written in collaboration with Justin Finke, titled “Possible Evidence for Lorentz Invariance Violation in Gamma-ray Burst 221009A” was mentioned in Nature Astronomy. You can read the mention here.

Recent Publications

1. Finke and S. Razzaque,
“Is Gamma-ray Burst 221009A Really a Once-in-10,000 Year Event?,” Astrophys. J.
(in press)[arXiv:2407.15940 [astro-ph.HE]].

2. H. Abdalla, S. Razzaque, M. Bottcher, J. Finke and A. Dominguez, “Influence of cosmic voids on the propagation of TeV gamma-rays and the puzzle of GRB
221009A,”Mon. Not. Roy. Astron. Soc. 532, no.1, 198-208
(2024) doi:10.1093/mnras/stae1514
[arXiv:2406.10651 [astro-ph.HE]]

3. K. Dixit, S. S. Haque and S. Razzaque,
“Spread Complexity of High Energy Neutrino Propagation over Astrophysical Distances,”
Under review
[arXiv:2406.07491 [hep-ph]].

4. K. Dixit, L. S. Miranda and S. Razzaque,
“Searching for Pseudo-Dirac neutrinos from Astrophysical sources in IceCube data,”
Under review
[arXiv:2406.06476 [astro-ph.HE]].

5 . L. Mazwi, S. Razzaque and L. Nyadzani,
“On non-detection of gamma-ray bursts in three compact binary merger events detected by LIGO,”
Mon. Not. Roy. Astron. Soc. 531, no.1, 2162-2167 (2024)
doi:10.1093/mnras/stae1312
[arXiv:2405.11650 [astro-ph.HE]].

6. T. Aldowma and S. Razzaque,
“Deep Neural Networks for estimation of gamma-ray burst redshifts,”
Mon. Not. Roy. Astron. Soc. 529, no.3, 2676-2685 (2024)
doi:10.1093/mnras/stae535
[arXiv:2401.11005 [astro-ph.HE]].

7. M. Barnard, S. Razzaque and J. C. Joshi,
“Very high-energy gamma rays from GRB 180720B and GRB 190829A with external Compton emission,”
Mon. Not. Roy. Astron. Soc. 527, 11893 (2024)
doi:10.1093/mnras/stad3985
[arXiv:2312.14772 [astro-ph.HE]].

8. K. Dixit, S. S. Haque and S. Razzaque,
“Quantum spread complexity in neutrino oscillations,”
Eur. Phys. J. C 84, no.3, 260 (2024)
doi:10.1140/epjc/s10052-024-12620-0
[arXiv:2305.17025 [hep-ph]].

9. A. De Sarkar, N. A. J., N. Roy, S. Razzaque and G. C. Anupama,
“Lepto-hadronic Interpretation of 2021 RS Ophiuchi Nova Outburst,”
Astrophys. J. 951, no.1, 62 (2023)
doi:10.3847/1538-4357/acd6ed
[arXiv:2305.10735 [astro-ph.HE]].

10. S. Das and S. Razzaque,
“Ultrahigh-energy cosmic-ray signature in GRB 221009A,”
Astron. Astrophys. 670, L12 (2023)
doi:10.1051/0004-6361/202245377
[arXiv:2210.13349 [astro-ph.HE]].

11. J.D. Finke and S. Razzaque,
“Possible Evidence for Lorentz Invariance Violation in Gamma-Ray Burst 221009A,”
Astrophys. J. Lett. 942, no.1, L21 (2023)
doi:10.3847/2041-8213/acade1
[arXiv:2210.11261 [astro-ph.HE]].

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