29 citations · 87 across the 21 of their papers we have counts for
22 papers
Testing the Anton-Schmidt dark energy model with the DESI DR2 measurements
Himanshu Chaudhary, Salvatore Capozziello, Dhruba Jyoti Gogoi +1
We present a comparative cosmological analysis of the Anton-Schmidt, CDM, and CPL models using baryon acoustic oscillation measurements from the Dark Energy Spectroscopic Instru…
Constraints on the Modified Emergent Dark Energy Model Using DESI DR2 BAO
Himanshu Chaudhary, Dhruba Jyoti Gogoi, Salvatore Capozziello +1
In this work, we investigate the modified emergent dark energy (MEDE) model using baryon acoustic oscillation measurements from the Dark Energy Spectroscopic Instrument Data Releas…
Conformal Killing Gravity: New Constraints from DESI DR2 BAO datasets
Himanshu Chaudhary, Salvatore Capozziello, Carlo Alberto Mantica +3
We investigate a geometric approach referred to as the Conformal Killing Gravity (CKG), in which the dark energy sector emerges naturally from the conformal Killing symmetry of the…
Equatorial Periodic Orbits and Gravitational Wave Phenomenology around Spherically-symmetric vacuum solution in Freund-Nambu scalar-tensor gravity
Dhruba Jyoti Gogoi, Jyatsnasree Bora, Himanshu Chaudhary +2
We investigate test particle dynamics and gravitational wave (GW) phenomenology in an exact spherically symmetric vacuum solution of Freund - Nambu scalar - tensor gravity. This fr…
Unified Mass-Scaled QPO Signatures of Kerr Sen Black Holes from Stellar Mass to Supermassive Sources
Orhan Donmez, G. Mustafa
In this study, we numerically investigate Bondi-Hoyle-Lyttleton (BHL) accretion around Kerr-Sen black holes and examine how the charge-related deformation of the spacetime affects…
QPO-like Signatures and Hydrodynamical Variability in Accretion around a JNW-type Compact Spacetime in Freund-Nambu Scalar-Tensor Gravity
Orhan Donmez, M. Yousaf, G. Mustafa
Scalar tensor theories of gravity provide a broad as well as physically rich extension of general theory of relativity by allowing the gravitational interaction to be mediated not…
Is Dark Energy Dynamical in the DESI Era? A Critical Review
Salvatore Capozziello, Himanshu Chaudhary, Tiberiu Harko +1
We investigate whether the recent DESI DR2 measurements provide or not evidences for dynamical dark energy by exploring the CDM model and its extensions with free $\sum m_ν…
Evidence of dynamical dark energy found via the DESI DR2 Lyman forest
Salvatore Capozziello, Himanshu Chaudhary, G. Mustafa +1
We present a comprehensive analysis of the cosmological implications of the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) Lyman- forest baryon acoustic oscill…
Probing departures from CDM by late-time datasets
Himanshu Chaudhary, Vipin Kumar Sharma, Salvatore Capozziello +1
Observational data play a pivotal role in identifying cosmological models that are both theoretically consistent and empirically viable. In this work, we investigate the level of p…
Is the CDM Model in Crisis?
Himanshu Chaudhary, Salvatore Capozziello, Subhrat Praharaj +2
We present strong evidence for dynamical dark energy that challenges the standard CDM model. Several dark energy scenarios are explored, including CDM, logarithmic, expo…
Evidence for evolving dark energy from DESI DR2 BAO and Pantheon, DES-Dovekie, and Union3
Himanshu Chaudhary, Salvatore Capozziello, Vipin Kumar Sharma +2
Evidences for evolving dark energy are shown using baryon acoustic oscillation measurements from the recent Dark Energy Spectroscopic Instrument Data Release 2 , combined with diff…
Does DESI DR2 challenge CDM paradigm ?
Himanshu Chaudhary, Salvatore Capozziello, Vipin Kumar Sharma +1
Although debate on DESI DR1 systematics remains, DESI DR2 is consistent with DR1 and strengthens its trends. In our analysis, the LRG1 point at and the LRG…
Compact Objects in 4D Einstein Gauss Bonnet Gravity A Data Based Perspective
Puja Mukherjee, Himanshu Chaudhary, Ujjal Debnath +1
Cosmic evolution is the most sensational topic among researchers of modern cosmology. This article explores cosmic evolution in 4D Einstein Gauss Bonnet gravity, focusing on mass a…
f(R, , T) Gravity: Cosmological Implications and Dynamical System Analysis
Ratul Mandal, Himanshu Chaudhary, Tiberiu Harko +2
We consider the cosmological implications of a four-dimensional extension of the Gauss-Bonnet gravity, where is the Gauss-Bonnet topological invariant, in which the Eins…
How parameter constraining can influence the mass accretion process of a Black Hole in the Generalized Rastall Gravity Theory ?
Puja Mukherjee, Ujjal Debnath, Himanshu Chaudhary +1
Black holes, one of the greatest enigmas of our Universe, are challenging to decipher. This work is dedicated to observing the changes in the mass of a non-singular black hole with…
Shadows and Strong Gravitational Lensing Around Black Hole-like Compact Object in Quadratic Gravity
Somi Aktar, Niyaz Uddin Molla, Farook Rahaman +1
We investigate the astrophysical consequences of black holes in quadratic gravity, characterized by the parameters , , and , in addition to the black hole mass…
The estimation of parameters of generalized cosmic Chaplygin gas and viscous modified Chaplygin gas and Accretions around Black Hole in the background of Einstein-Aether gravity
Puja Mukherjee, Ujjal Debnath, Himanshu Chaudhary +1
In this paper, we have investigated the phenomenon of accelerated cosmic expansion in the late universe and the mass accretion process of a 4-dimensional Einstein-Aether black hole…
Observational Constraints on the Parameters of Hořava-Lifshitz Gravity
Himanshu Chaudhary, Ujjal Debnath, Shibesh Kumar Jas Pacif +3
This study investigates the accelerated cosmic expansion within the Hořava-Lifshitz Model. To constrain the cosmological parameters of this model, we incorporate 17 Baryon Acoustic…
Extracting and in Pacif Parametrization Models through Late-Time Dataset
Himanshu Chaudhary, Shibesh Kumar Jas Pacif, G. Mustafa +2
This study examines five models derived from the Pacif parametrization scheme of the Hubble parameter (), yielding various linear to quintic forms of the deceleration parameter…
Gravitational Lensing of Dark Energy Models and CDM Using Observational data in Loop Quantum Cosmology
Rownak Kundu, Ujjal Debnath, Himanshu Chaudhary +1
This paper investigates the accelerated cosmic expansion in the late Universe by examining two dark energy models, viscous modified Chaplygin gas (VsMCG) and variable modified Chap…
Addressing the Tension using Late-Time Observational Measurements in a Novel deceleration Parametrization
Himanshu Chaudhary, Ujjal Debnath, G. Mustafa +2
This paper introduces a novel cosmological model aimed at probing the accelerated expansion of the late Universe through a unique parametrization of the deceleration parameter. We…
Constraints on the parameters of modified Chaplygin-Jacobi and modified Chaplygin-Abel gases in gravity
Himanshu Chaudhary, Ujjal Debnath, Tanusree Roy +3
In this study, we investigate two dark energy models, MCJG and MCAG, in the context of gravity within a non-flat FLRW Universe. Our analysis considers radiation, dark matter…