NutMaat: A Python Package for Stellar Spectral Classification on the MK System
R. I. El-Kholy and Z. M. Hayman 2025 AJ 170 222. https://doi.org/10.3847/1538-3881/adfb7b
CV
Education
- Ph.D in Astroparticle Physics, Cairo University, 2021
- M.Sc. in Relativistic Cosmology, Cairo University, 2016
- B.Sc. in Physics & Astronomy, Cairo University, 2011
Work experience
- October 2021 – Present: Lecturer in Astronomy
- Department of Astronomy, Space Science, and Meteorology, Cairo University, Egypt
- March 2025 - June 2025: Adjunct Lecturer
- ESLSCA University, Egypt
- October 2016 – September 2021: Assistant Lecturer in Astronomy
- Department of Astronomy, Space Science, and Meteorology, Cairo University, Egypt
- September 2012 – September 2016: Teaching Assistant in Astronomy
- Department of Astronomy, Space Science, and Meteorology, Cairo University, Egypt
- October 2022 – Present: Session Lead
- Udacity (Digital Egypt Cubs Initiative)
- September 2020 – May 2022: Arabic Mathematics Reviewer
- Nagwa Ltd.
- February 2019 – November 2019: Student Mentor
- Udacity
- May 2013 – August 2020: English to Arabic Translator
- Springer Nature
Skills
- Python
- C++
- ROOT
- Linux
- Mathematica
- LaTeX
Publications
Optimised sampling of SDSS-IV MaStar spectra for stellar classification using supervised models
El-Kholy, R, Hayman, Z. Optimised sampling of SDSS-IV MaStar spectra for stellar classification using supervised models. A&A, 693 (2025) A300. https://doi.org/10.1051/0004-6361/202451309
Technical Design Report of the Spin Physics Detector at NICA
V. Abazov et al. (SPD Collaboration). Technical Design Report of the Spin Physics Detector at NICA. Natural Science Review 1, 1 (2024). https://doi.org/10.54546/NaturalSciRev.100101
Conceptual design of the Spin Physics Detector
V.M. Abazov et al. Conceptual design of the Spin Physics Detector (2021). https://arxiv.org/abs/2102.00442
Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams
Abramov, V.V. et al. Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams. Phys. Part. Nuclei 52, 1044–1119 (2021). https://doi.org/10.1134/S1063779621060022
On the Study of Antiprotons Yield in Hadronic Collisions at NICA SPD
Alexakhin, V., Guskov, A., Hayman, Z. et al. On the Study of Antiprotons Yield in Hadronic Collisions at NICA SPD. Phys. Part. Nuclei Lett. 18, 196–201 (2021). https://doi.org/10.1134/S1547477121020023
On the Possibility to Study Antiproton Production at the SPD Detector at NICA Collider for Dark Matter Search in Astrophysical Experiments
Guskov, A., El-Kholy, R. On the Possibility to Study Antiproton Production at the SPD Detector at NICA Collider for Dark Matter Search in Astrophysical Experiments. Phys. Part. Nuclei Lett. 16, 216–223 (2019). https://doi.org/10.1134/S1547477119030117
Unification Principle and a Geometric Field Theory
Wanas, Mamdouh I., Osman, Samah N. and El-Kholy, Reham I.. "Unification Principle and a Geometric Field Theory" Open Physics, vol. 13, no. 1, 2015. https://doi.org/10.1515/phys-2015-0030
Talks
The Spin Physics Detector at NICA
Presentation at 12th Conference on Nuclear and Particle Physics (NUPPAC'22), Sharm El-Sheikh, Egypt
The Spin Physics Detector at NICA
Presentation at First Pan-African Astro-Particle and Collider Physics Workshop (PACP22), Remote
On the Study of Antiprotons Yield in Hadronic Collisions at NICA SPD
Presentation at Dzhelepov Lab. of Nuclear Problems (DLNP), Joint Institute for Nuclear Research (JINR), Dubna, Russia
On the Possibility to Study Antiproton Production at the SPD Detector at NICA Collider for Dark Matter Search in Astrophysical Experiments
Presentation at Dzhelepov Lab. of Nuclear Problems (DLNP), Joint Institute for Nuclear Research (JINR), Dubna, Russia
f(T) Theories
Presentation at Center for Theoretical Physics (CTP), British University in Egypt (BUE), Cairo, Egypt
Teaching
Service and leadership
- Sep 2023 to Present: Examination Control Unit Member
- Department of Astronomy, Space Science, and Meteorology, Cairo University
- Sep 2024 to Sep 2025: Quality Assurance Unit Coordinator
- Department of Astronomy, Space Science, and Meteorology, Cairo University
- Feb 2022 to Sep 2024: Foreign Students Coordinator
- Department of Astronomy, Space Science, and Meteorology, Cairo University
- Mar 2015 to Jan 2016: Strategic Planning Executive Team Member
- Quality Assurance Unit, Faculty of Science, Cairo University