Zobrazeno 1 - 10
of 16 299
pro vyhledávání: '"Gogoi A"'
Autor:
Gohain, Mrinnoy M., Bhuyan, Kalyan, Borgohain, Rajnandini, Gogoi, Tonmoyee, Bhuyan, Kakoli, Phukon, Prabwal
The Frolov black hole (BH) is a charged extension of the Hayward BH, having regularity at the central point $r = 0$ and an asymptotically Schwarzschild form for large values of $r$. Such a BH is parameterized by a length scale parameter, $\alpha_0$.
Externí odkaz:
http://arxiv.org/abs/2412.06252
Enhanced HLLEM and HLL-CPS schemes for all Mach number flows based using anti-diffusion coefficients
Autor:
Gogoi, A., Mandal, J. C.
This paper compares the HLLEM and HLL-CPS schemes for Euler equations and proposes improvements for all Mach number flows. Enhancements to the HLLEM scheme involve adding anti-diffusion terms in the face normal direction and modifying anti-diffusion
Externí odkaz:
http://arxiv.org/abs/2411.09509
Optical Properties, Quasinormal Modes and Greybody factors of deformed AdS-Schwarzschild black holes
We investigate the temperature, photon and shadow radii, quasinormal modes (QNMs), greybody factors, and emission rates of deformed AdS black holes, focusing on the effects of the deformation parameter $ \alpha $ and control parameter $ \beta $. Incr
Externí odkaz:
http://arxiv.org/abs/2411.07173
The Ultra Violet Imaging Telescope (UVIT) onboard India's first dedicated multiwavelength satellite \textit{AstroSat} observed a significant fraction of the sky in the ultraviolet with a spatial resolution of 1.4\arcsec. We present a catalog of the p
Externí odkaz:
http://arxiv.org/abs/2411.01809
The current work explores long-term speech rhythm variations to classify Mising and Assamese, two low-resourced languages from Assam, Northeast India. We study the temporal information of speech rhythm embedded in low-frequency (LF) spectrograms deri
Externí odkaz:
http://arxiv.org/abs/2410.20095
This paper reports a preliminary study on quantitative frequency domain rhythm cues for classifying five Indian languages: Bengali, Kannada, Malayalam, Marathi, and Tamil. We employ rhythm formant (R-formants) analysis, a technique introduced by Gibb
Externí odkaz:
http://arxiv.org/abs/2410.05724
In this paper, we study a non-Hermitian (NH) ladder subjected to a variety of driving protocols. The driven system looses chiral symmetry (CS) whose presence is indispensable for its topological characterization. Further, the bulk boundary correspond
Externí odkaz:
http://arxiv.org/abs/2410.05427
In this paper, we investigate quasinormal modes (QNMs) and greybody factors within the framework of Symmergent gravity, an emergent gravity model with an $R + R^2$ curvature sector. Building on our previous work on static spherically-symmetric soluti
Externí odkaz:
http://arxiv.org/abs/2410.00691
Autor:
Sekhmani, Yassine, Gogoi, Dhruba Jyoti, Myrzakulov, Ratbay, Luciano, Giuseppe Gaetano, Rayimbaev, Javlon
In this work, we examine the optical behaviors and thermodynamic phase structures using shadow analysis for four $\mathbb{S}\mathbb{T}\mathbb{U}$ black holes. The study is conducted for four cases of charge configurations on the parameter space $\mat
Externí odkaz:
http://arxiv.org/abs/2407.20621
Autor:
Gogoi, Dhruba Jyoti, Sekhmani, Yassine, Bora, Shyamalee, Rayimbaev, Javlon, Bora, Jyatsnasree, Myrzakulov, Ratbay
In this study, we explore the corrected thermodynamics of non-linear magnetic charged anti-de Sitter (AdS) black holes surrounded by quintessence, incorporating thermal fluctuations and deriving the corrected thermodynamic potentials. We analyze the
Externí odkaz:
http://arxiv.org/abs/2407.10946