73 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- C. Bambi26 · h 50
- J. Rayimbaev2 profiles18 · h 23
- A. Abdujabbarov11 · h 41
- G. Mustafa4 profiles10 · h 35
- B. Ahmedov2 profiles9 · h 42
- Honghui Liu9 · h 13
- Farruh Atamurotov8 · h 37
- M. Koussour3 profiles7 · h 24
- Swarnim Shashank7 · h 7
- Askar B. Abdikamalov2 profiles6 · h 20
- H. Chaudhary6 · h 15
- U. Debnath6 · h 30
- National University of UzbekistanUZ92 papers
- Fudan UniversityCN26 papers
- Ulugh Beg Astronomical InstituteUZ21 papers
- Tashkent Institute of Irrigation and Agricultural Mechanization EngineersUZ15 papers
- Tashkent State Technical University named after Islam KarimovUZ15 papers
- University of TübingenDE12 papers
- Zhejiang Normal UniversityCN12 papers
- Inha University in TashkentUZ9 papers
- L. N. Gumilyov Eurasian National UniversityKZ9 papers
- Harbin Institute of TechnologyCN8 papers
- Westminster International University in TashkentUZ8 papers
- University of Hassan II CasablancaMA7 papers
24 papers · 1 filter
Assessing systematic uncertainties from spectral re-analysis of Cyg X-1 with different coronal geometries
Abdurakhmon Nosirov, Jiachen Jiang, Cosimo Bambi +1
In this work, we carry out a new spectral reanalysis of NuSTAR and Suzaku observations of the disk reflection spectra in the stellar-mass black hole X-ray binary Cyg~X-1. We compar…
Single-shot near-field reconstruction of metamaterial dispersion
Eugene Koreshin, Denis Sakhno, Jim A. Enriquez +1
We present a single-shot near-field technique, where the near-field scan is performed on a single sample without repeating measurements or averaging over multiple samples, to recon…
Taming singularities and chaos in conformal gravity
Jiale Gu, Leonardo Modesto, Cosimo Bambi
We hereby address the cosmological singularity problem in a general gravitational theory invariant under Weyl conformal transformations. In particular, we focus on the Bianchi IX s…
Can a Dehnen-type dark matter halo affect the neutrino flavor oscillations?
Mirzabek Alloqulov, Ahmadjon Abdujabbarov, Bobomurat Ahmedov +1
The gravitational weak lensing of neutrinos in the presence of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo is investigated. The event horizon structure…
Charged particle bound orbits around magnetized Schwarzschild black holes: S2 star and hotspot applications
Uktamjon Uktamov, Mohsen Fathi, Javlon Rayimbaev
The dynamics of charged particles around magnetized black holes provide valuable insights into astrophysical processes near compact objects. In this work, we investigate the bound…
A Simple and Reproducible Hybrid Solver for a Truck-Drone VRP with Recharge
Meraryslan Meraliyev, Cemil Turan, Shirali Kadyrov
We study last-mile delivery with one truck and one drone under explicit battery management: the drone flies at twice the truck speed; each sortie must satisfy an endurance budget;…
Thermodynamics of Einstein-Geometric Proca AdS compact objects
Asalkhon Alimova, Elham Ghorani, Beyhan Puliçe +2
In this study we explore metric-Palatini gravity extended by the antisymmetric component of the affine curvature. This gravitational theory results in general relativity plus a geo…
Spin Constraints on 4U 1630-47 via combined Continuum Fitting and Reflection methods: a comparative study using Frequentist and Bayesian statistics
Debtroy Das, Honghui Liu, Zuobin Zhang +5
We present a comprehensive Bayesian spectral analysis of the black hole X-ray binary 4U 1630-47 during its 2022 outburst, using simultaneous NICER and NuSTAR observations. Using th…
Stellar-Mass Black Holes
Cosimo Bambi
Stellar-mass black holes ( ) are the natural product of the evolution of heavy stars ( ). I…
Possible Coronal Geometry in the Hard and Soft State of Black Hole X-ray Binaries from MONK Simulations
Ningyue Fan, Cosimo Bambi, James F. Steiner +1
Understanding the coronal geometry in different states of black hole X-ray binaries is important for more accurate modeling of the system. However, it is difficult to distinguish d…
Epicyclic oscillations and accretion disk around a special Buchdahl-inspired spacetime
Mirzabek Alloqulov, Mubasher Jamil, Sanjar Shaymatov +2
In this paper, we consider the Buchdahl-inspired spacetime metric and investigate its aspects using the quasiperiodic oscillations and the accretion disk due to the accreting matte…
Probing missing physics from inspiralling compact binaries via time-frequency tracks
Debtroy Das, Soumen Roy, Anand S. Sengupta +1
The orbital evolution of binary black hole (BBH) systems is determined by the component masses and spins of the black holes and the governing gravity theory. Gravitational wave (GW…
Volume-Preserving Deformation of Honeycomb Wire Media Enables Broad Plasma Frequency Tunability
Denis Sakhno, Jim A. Enriquez, Pavel A. Belov
We demonstrate significant tunability of the plasma frequency in a wire medium by mechanically deforming a lattice of parallel metallic wires arranged at the nodes of a honeycomb s…
Measuring black hole spins with x-ray reflection spectroscopy: A GRMHD outlook
Swarnim Shashank, Askar B. Abdikamalov, Honghui Liu +4
X-ray reflection spectroscopy has evolved as one of the leading methods to measure black hole spins. However, the question is whether its measurements are subjected to systematic b…
Exploring black hole shadows in axisymmetric spacetimes with coordinate-independent methods and neural networks
Temurbek Mirzaev, Bobomurat Ahmedov, Cosimo Bambi
The study of black hole shadows provides a powerful tool for testing the predictions of general relativity and exploring deviations from the standard Kerr metric in the strong grav…
Rabi-induced localization and resonant delocalization of a binary condensate in a spin-asymmetric quasiperiodic potential
Swarup K. Sarkar, Sh. Mardonov, E. Ya. Sherman +1
We theoretically investigate the ground state and dynamics of a Rabi-coupled pseudospin-1/2 Bose-Einstein condensate, where only one spin component is subjected to an external pote…
Investigation of the formation of superheavy elements with atomic numbers 116 and 120 through Ti-induced reaction
Bakhodir Kayumov
The synthesis of superheavy elements provides crucial insights into the stability and structure of nuclei at the limits of the periodic table. This study investigates the Ti…
Energy conditions in gravity
Y. Myrzakulov, O. Donmez, M. Koussour +3
We are experiencing a golden age of experimental cosmology, with exact and accurate observations being used to constrain various gravitational theories like never before. Alongside…
An interstellar mission to test astrophysical black holes
Cosimo Bambi
Black holes are the sources of the strongest gravitational fields that can be found today in the Universe and are ideal laboratories for testing Einstein's theory of General Relati…
Effect of nonlinear electrodynamics on polarization distribution around black hole
Abylaikhan Tlemissov, Bobir Toshmatov, Jiří Kovář
We have investigated the polarized images of synchrotron emission from magnetically charged, spherically symmetric regular Bronnikov black hole (in general relativity coupled to no…
Dimming GRS 1915+105 observed with NICER and Insight--HXMT
M. Zhou, V. Grinberg, A. Santangelo +6
The black hole X-ray binary GRS 1915+105 was bright for 26 years since its discovery and is well-known for its disk instabilities, quasi-periodic oscillations, and disk wind signat…
Observable Signatures of RN Black Holes with Dark Matter Halos via Strong Gravitational Lensing and Constraints from EHT Observations
Niyaz Uddin Molla, Himanshu Chaudhary, Salvatore Capozziello +3
We investigate the impact of dark matter halos on the gravitational lensing produced by electrically charged, spherically symmetric black holes in the strong-field regime. The stud…
Impact of the returning radiation on X-ray reflection spectroscopy measurements: the case of Galactic black holes
Kexin Huang, Honghui Liu, Cosimo Bambi +2
The effect of the returning radiation has long been ignored in the analysis of the reflection spectra of Galactic black holes and active galactic nuclei and only recently has been…
Influence of Quantum Correction on Kerr Black Hole in Effective Loop Quantum Gravity via Shadows and EHT Results
Muhammad Ali Raza, M. Zubair, Farruh Atamurotov +1
Recently, a study on shadow of quantum corrected Schwarzschild black hole in loop quantum gravity appeared in [Ye et al., Phys. Lett. B 851, 138566, (2024)] assuming a fixed value…