Exploring the shadow of a rotating charged ModMax black hole
Year: 2023
Type: article
Abstract: The research presented in this paper discusses the impact that the parameters of charge (Q) and screening factor (γ) have on properties of the horizon and silhouette of rotating charged ModMax black holes which were reviewed in [Eur. Phys. J. C (2022) 82:1155] recently, building upon previous findings in the field. Furthermore, the study explores the behavior of null geodesics, which can help us better understand the apparent shape of the black hole’s silhouette, as well as the distortion parameter and approximate radii of the silhouette that are influenced by the aforementioned parameters, and there are some values of parameter Q which corresponds to data from the Event Horizon Telescope (EHT). Notably, we explore the distortion parameter and approximate radii of the silhouette, revealing that while an increase in γ leads to a growth in silhouette radius (R s ), it simultaneously reduces the distortion rate (δ s ). Conversely, heightened Q charge results in a reduction of R s accompanied by an increase in δ s . Lastly, the paper analyzes the effects of the black hole’s parameters on the effective potential and energy emission: the peak value of the energy emission rate experiences a decrease as the screening factor (γ) increases, while it increases with higher values of the charge parameter (Q).
Institutions: Ulugh Beg Astronomical Institute, National University of Uzbekistan, Inha University in Tashkent, Tashkent State Technical University named after Islam Karimov, Central Asian University, New Uzbekistan University, University of Tashkent for Applied Sciences, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Eastern Mediterranean University, Urgench State University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4389740643