Zobrazeno 1 - 10
of 1 660
pro vyhledávání: '"Santosh, V"'
This study effectively reconstructs a cosmological model utilizing covariant $f(Q)$ gravity within Connection-III and FLRW spacetime. The dynamic behavior of the reconstructed model is thoroughly analyzed using the Hubble parameter $H(z)$ and various
Externí odkaz:
http://arxiv.org/abs/2408.12846
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 535 (2024) 1136
In this work, we present a method for numerically solving the Friedmann equations of modified $f(\mathcal{G})$ gravity in the presence of pressureless matter. This method enables us to predict the redshift behaviour of the Hubble expansion rate. To e
Externí odkaz:
http://arxiv.org/abs/2408.03683
Autor:
Patapati, Santosh V.
Major Depressive Disorder (MDD) is a pervasive mental health condition that affects 300 million people worldwide. This work presents a novel, BiLSTM-based tri-modal model-level fusion architecture for the binary classification of depression from clin
Externí odkaz:
http://arxiv.org/abs/2407.19340
Autor:
Chand, Swadesh, Dewangan, Gulab C., Zdziarski, Andrzej A., Bhattacharya, Dipankar, Mithun, N. P. S., Vadawale, Santosh V.
We perform broadband ($0.7-100$ keV) spectral analysis of five hard state observations of the low-mass back hole X-ray binary GX~339--4 taken by AstroSat during the rising phase of three outbursts from $2019$ to $2022$. We find that the outburst in 2
Externí odkaz:
http://arxiv.org/abs/2406.10607
Autor:
Tiwari, Neeraj K., Vadawale, Santosh V., Mithun, N. P. S., Vaishnava, C. S., Saiguhan, Bharath
The imaging performance and sensitivity of an X-ray telescope when observing astrophysical sources are primarily governed by the optical design, geometrical uncertainties (figure errors, surface roughness, and mirror alignment inaccuracies), and the
Externí odkaz:
http://arxiv.org/abs/2405.06343
Autor:
Lohakare, Santosh V., Mishra, B.
Publikováno v:
The Astrophysical Journal 978 26 (2025)
In this work, we explore the cosmological stability of $f(Q, B)$ gravity using a dynamical system approach, where $Q$ denotes the nonmetricity scalar and $B$ represents the boundary term. We determine the model parameters of $f(Q, B)$ through Bayesia
Externí odkaz:
http://arxiv.org/abs/2403.10956
Publikováno v:
MNRAS, 526, 2023, 3796-3814
This study simulates strange stars in $f(Q)$ gravity with an additional source under an electric field using gravitational decoupling and the complete Gravitational Decoupling (CGD) technique. By employing the Tolman ansatz and the MIT bag model equa
Externí odkaz:
http://arxiv.org/abs/2309.10830
Autor:
Chattopadhyay, Tanmoy, Kumar, Abhay, Rao, A. R., Bhargava, Yash, Vadawale, Santosh V., Ratheesh, Ajay, Dewangan, Gulab, Bhattacharyay, Dipankar, S., Mithun N. P., Bhalerao, Varun
Publikováno v:
Astrophysical Journal Letters, Volume 960, Number 1, L2, 2023 December 29
Cygnus X-1, the well-known accreting black hole system, exhibits several observational features hinting at an intricate interplay between the accretion disk, its atmosphere known as the corona and the putative relativistic jet. It has been extensivel
Externí odkaz:
http://arxiv.org/abs/2306.04057
Publikováno v:
Annals of Physics 460 (2024) 169563
The stable critical points and their corresponding cosmology are derived in the teleparallel gravity with an added Gauss-Bonnet topological invariant term. We have analyzed the dynamics of the Universe by presenting two cosmological viable models, sh
Externí odkaz:
http://arxiv.org/abs/2303.16911
Publikováno v:
Class. and Quantum Grav. 40 (2023) 215009
In this paper, we have analyzed the geometrical and dynamical parameters of $\mathcal{F}(R, \mathcal{G})=\alpha R^2 \mathcal{G}^\beta$ cosmological model, ($R$, $\mathcal{G}$ being the Ricci scalar and Gauss-Bonnet invariant respectively), constraini
Externí odkaz:
http://arxiv.org/abs/2303.14575