Askar Abdikamalov
Assistant Professor
Email:
a.abdikamalov@newuu.uzOffice number:
107Reception days:
● Assistant Professor New Uzbekistan University March 2023 – present
● Main Researcher Ulugh Beg Astronomical Institute August 2020 – present
● Postdoctoral Research Fellow Fudan University September 2020 – April 2023
● Numerical Methods, X-ray Reflection Spectroscopy, Black holes, Accretion Disks
● Probability Models (Spring 2023)
● Swarnim Shashank, Shafqat Riaz, Askar B. Abdikamalov, Cosimo Bambi, Testing Relativistic Reflection Models with GRMHD Simulations of Accreting Black Holes, The Astrophysical Journal, October 2022, Volume 938, Issue 1, id.53, 9 pp
● Jiale Gu, Shafqat Riaz, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Probing bumblebee gravity with black hole X-ray data, The European Physical Journal C, August 2022, Volume 82, Issue 8, article id.708
● Shafqat Riaz, Swarnim Shashank, Rittick Roy, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Zuobin Zhang, Menglei Zhou, Testing regular black holes with X-ray and GW data, Journal of Cosmology and Astroparticle Physics, October 2022, Volume 2022, Issue 10, id.040, 30 pp.
● Gitika Mall, Ashutosh Tripathi, Askar B. Abdikamalov, Cosimo Bambi, Impact of ionization and electron density gradients in X-ray reflection spectroscopy measurements, Monthly Notices of the Royal Astronomical Society, December 2022, Volume 517, Issue 4, pp.5721-5733
● Jiachen Jiang, Askar B. Abdikamalov, Cosimo Bambi, Christopher S. Reynolds, Black hole spin measurements based on a thin disc model with finite thickness – I. An example study of MCG−06-30-15, Monthly Notices of the Royal Astronomical Society, August 2022, Volume 514, Issue 3, pp.3246-3259
● Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Honghui Liu, Ashutosh Tripathi, A Reflection Model with a Radial Disk Density Profile, The Astrophysical Journal, Demeber 2021, Volume 923, Issue 2, id.175, 10 pp.
● Zhibo Yu, Qunfeng Jiang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Honghui Liu, Sourabh Nampalliwar, Ashutosh Tripathi, Constraining the Konoplya-Rezzolla-Zhidenko deformation parameters. II. Limits from stellar-mass black hole x-ray data, Physical Review D, October 2021, Volume 104, Issue 8, article id.084035
● Zuobin Zhang, Honghui Liu, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Menglei Zhou, Testing the Kerr Black Hole Hypothesis with GRS 1716-249 by Combining the Continuum Fitting and the Iron-line Methods, The Astrophysical Journal, January 2022, Volume 924, Issue 2, id.72, 14 pp.
● Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Ashutosh Tripathi, Constraining the Konoplya-Rezzolla-Zhidenko deformation parameters: Limits from supermassive black hole x-ray data, Physical Review D, July 2021, Volume 104, Issue 2, article id.024058
● Rittick Roy, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Shafqat Riaz, Ashutosh Tripathi, Testing the weak-equivalence principle near black holes, Physical Review D, August 2021, Volume 104, Issue 4, article id.044001
● Ashutosh Tripathi, Biao Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Constraints on Einstein-Maxwell dilaton-axion gravity from X-ray reflection spectroscopy, Journal of Cosmology and Astroparticle Physics, July 2021, Volume 2021, Issue 07, id.002, 17 pp.
● Ashutosh Tripathi, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Honghui Liu, Impact of the Disk Thickness on X-Ray Reflection Spectroscopy Measurements, The Astrophysical Journal, June 2021, Volume 913, Issue 2, id.129, 14 pp.
● Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Honghui Liu, Yuexin Zhang, Implementation of a radial disk ionization profile in the relxill_nk model, Physical Review D, May 2021, Volume 103, Issue 10, article id.103023
● Ashutosh Tripathi, Yuexin Zhang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Jiachen Jiang, Honghui Liu, Menglei Zhou, Testing General Relativity with NuSTAR data of Galactic Black Holes, The Astrophysical Journal, June 2021, Volume 913, Issue 2, id.79, 14 pp.
● Shafqat Riaz, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Haiyang Wang, Zhibo Yu, Reflection Spectra of Accretion Disks Illuminated by Disk-like Coronae, The Astrophysical Journal, January 2022, Volume 925, Number 1, 51
● Zuobin Zhang, Honghui Liu, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Menglei Zhou, Probing the near-horizon region of Cygnus X-1 with Suzaku and NuSTAR, Physical Review D, January 2021, Volume 103, Issue 2, article id.024055
● Ashutosh Tripathi, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Victoria Grinberg, Menglei Zhou, Testing the Kerr Black Hole Hypothesis with GX 339–4 by a Combined Analysis of Its Thermal Spectrum and Reflection Features, The Astrophysical Journal, January 2021, Volume 907, Issue 1, id.31, 9 pp.
● Ashutosh Tripathi, Biao Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Testing the Keplerian disk hypothesis using X-ray reflection spectroscopy, Physical Review D, November 2020, Volume 102, Issue 10, article id.103009
● Biao Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Ashutosh Tripathi, Shining X-rays on asymptotically safe quantum gravity, Journal of Cosmology and Astroparticle Physics, January 2021, Issue 01, article id. 047
● Jiachen Zhu, Askar B. Abdikamalov, Dimitry Ayzenberg, Mustapha Azreg-Ainou, Cosimo Bambi, Mubasher Jamil, Sourabh Nampalliwar, Ashutosh Tripathi, Menglei Zhou, X-ray reflection spectroscopy with Kaluza-Klein black holes, The European Physical Journal C, July 2020, Volume 80, Issue 7, article id.622
● Menglei Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Victoria Grinberg, Ashutosh Tripathi, Thermal spectra of thin accretion discs of finite thickness around Kerr black holes, Monthly Notices of the Royal Astronomical Society, July 2020, Volume 496, Issue 1, pp.497-503
● Honghui Liu, Haiyang Wang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Reflection features in the X-ray spectrum of Fairall 9 and implications for tests of general relativity, The Astrophysical Journal, June 2020, Volume 896, Issue 2, id.160, 9 pp.
● Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Sourabh Nampalliwar, Ashutosh Tripathi, Menglei Zhou, Testing the Kerr black hole hypothesis using X-ray reflection spectroscopy and a thin disk model with finite thickness, The Astrophysical Journal, August 2020, Volume 899, Issue 1, id.80
● Ashutosh Tripathi, Biao Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Search for traversable wormholes in active galactic nuclei using x-ray data, Physical Review D, March 2020, Volume 101, Issue 6, article id.064030
● Biao Zhou, Ashutosh Tripathi, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Menglei Zhou, Relativistic reflection spectra of super-spinning black holes, The European Physical Journal C, May 2020, Volume 80, Issue 5, article id.400
● Yuexin Zhang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Tests of the Kerr hypothesis with GRS 1915+105 using different RELXILL flavors, The Astrophysical Journal, October 2019, Volume 884, Issue 2, article id. 147, 11 pp.
● Honghui Liu, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Sourabh Nampalliwar, Testing the Kerr hypothesis using X-ray reflection spectroscopy with NuSTAR data of Cygnus X-1 in the soft state, Physical Review D, June 2019, Volume 99, Issue 12, id.123007
● Askar B. Abdikamalov, Ahmadjon A. Abdujabbarov, Dimitry Ayzenberg, Daniele Malafarina, Cosimo Bambi, Bobomurat Ahmedov, Black hole mimicker hiding in the shadow: Optical properties of the γ metric, Physical Review D, July 2019, Volume 100, Issue 2, id.024014
● Sourabh Nampalliwar, Shuo Xin, Shubham Srivastava, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Ashutosh Tripathi, Testing General Relativity with X-ray reflection spectroscopy: The Konoplya-Rezzolla-Zhidenko parametrization, Physical Review D, December 2020, Volume 102, Issue 12, article id.124071
● Ashutosh Tripathi, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Sourabh Nampalliwar, Constraining the Johannsen deformation parameter \epilon_3 with black hole X-ray data, Physical Review D, April 2019, Volume 99, Issue 8, id.083001
● Menglei Zhou, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Leonardo Modesto, Sourabh Nampalliwar, Yerong Xu, Singularity-free black holes in conformal gravity: New observational constraints, Europhysics Letters, February 2019, Volume 125, Issue 3, pp. 30002
● Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Sourabh Nampalliwar, Public Release of RELXILL_NK: A Relativistic Reflection Model for Testing Einstein’s Gravity, The Astrophysical Journal, June 2019, Volume 878, Issue 2, article id. 91, 14 pp.
● Yuexin Zhang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Sourabh Nampalliwar, About the Kerr nature of the stellar-mass black hole in GRS 1915+105, The Astrophysical Journal, April 2019, Volume 875, Issue 1, article id. 41, 8 pp.
● Ashutosh Tripathi, Jinli Yan, Yuchan Yang, Yunfeng Yan, Marcus Garnham, Yu Yao, Songcheng Li, Ziyu Ding, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Jiachen Jiang, Sourabh Nampalliwar, Constraints on the Spacetime Metric around Seven “Bare” AGNs Using X-Ray Reflection Spectroscopy, The Astrophysical Journal, April 2019, Volume 874, Issue 2, article id. 135, 14 pp.
● Ashutosh Tripathi, Sourabh Nampalliwar, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Andrea Marinucci, Toward Precision Tests of General Relativity with Black Hole X-Ray Reflection Spectroscopy, The Astrophysical Journal, April 2019, Volume 875, Issue 1, article id. 56, 11 pp.
● Kishalay Choudhury, Sourabh Nampalliwar, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Testing the Kerr metric with X-ray Reflection Spectroscopy of Mrk 335 Suzaku data, The Astrophysical Journal, July 2019, Volume 879, Issue 2, article id. 80, 12 pp.
● Yerong Xu, Sourabh Nampalliwar, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Jiachen Jiang, A Study of the Strong Gravity Region of the Black Hole in GS 1354–645, The Astrophysical Journal, October 2018, Volume 865, Issue 2, article id. 134, 6 pp.
● Jingyi Wang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. García, Sourabh Nampalliwar, James F. Steiner, Testing the Kerr metric using X-ray reflection spectroscopy: spectral analysis of GX 339–4, Journal of Cosmology and Astroparticle Physics, May 2020, Issue 05, article id. 026.
● Ashutosh Tripathi, Sourabh Nampalliwar, Askar B. Abdikamalov, Dimitry Ayzenberg, Jiachen Jiang, Cosimo Bambi, Testing the Kerr nature of the supermassive black hole in Ark 564, Physical Review D, July 2018, Volume 98, Issue 2, id.023018.
● Hrishikesh Chakrabarty, Askar B. Abdikamalov, Ahmadjon A. Abdujabbarov, Cosimo Bambi, Weak gravitational lensing: a compact object with arbitrary quadrupole moment immersed in plasma, Physical Review D, July 2018, Volume 98, Issue 2, id.024022.
● Menglei Zhou, Zheng Cao, Askar Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Leonardo Modesto, Sourabh Nampalliwar, Testing conformal gravity with the supermassive black hole in 1H0707-495, Physical Review D, July 2018, Volume 98, Issue 2, id.024007.
● CONMECHYDRO, NRU “TIIAME”, Tashkent, Uzbekistan, August 24, 2022
● Modeling Black Hole X-ray Emissions, Fudan University, Shanghai, China (online), May 8, 2022
● Atlantic General Relativity Meeting 2021, Bishop’s University in Sherbrooke, Canada (online), May 28, 2021
● Recent Progress in Relativistic Astrophysics, Fudan University, Shanghai, China, May 6, 2019
● Grant MRB-2021-527 "Development of parallel computing algorithms and software for modeling particle dynamics in relativistic astrophysics problems", funded by the Ministry of Innovative Development of Uzbekistan from December 1, 2021 to November 30, 2023.
● China Top Cited Paper Award in Astronomy and Astrophysics, IOP Publishing 2022
