180 citations · 742 across the 45 of their papers we have counts for
47 papers
Dynamics of late time universe in gravity
Bikash Chandra Roy, Aroonkumar Beesham, Bikash Chandra Paul
We construct cosmological model in nonmetricity scalar functional gravitational Lagrangian which describes the dynamical evolution of the late accelerating universe. Cosmolo…
Parametrization Framework for the Deceleration Parameter in Scalar Field Dark Energy Model
Aroonkumar Beesham
We propose a Friedmann-Lemaitre-Robertson-Walker cosmological model with a scalar field that represents dark energy. A new parametrization of the deceleration parameter is introduc…
Observational Constraints on Model with specific q
Aroonkumar Beesham
We place observational constraints on an FLRW cosmological model in gravity with a specific deceleration parameter that depends on the scale factor. This form of the dec…
Cross-correlation between the thermal Sunyaev-Zeldovich effect and the Integrated Sachs-Wolfe effect
Ayodeji Ibitoye, Wei-Ming Dai, Yin-Zhe Ma +5
We present a joint cosmological analysis of the power spectra measurement of the Planck Compton parameter and the integrated Sachs-Wolfe (ISW) maps. We detect the statistical corre…
CoLFI: Cosmological Likelihood-free Inference with Neural Density Estimators
Guo-Jian Wang, Cheng Cheng, Yin-Zhe Ma +3
In previous works, we proposed to estimate cosmological parameters with the artificial neural network (ANN) and the mixture density network (MDN). In this work, we propose an impro…
Reconstruction of an Observationally Constrained gravity model
Anirudh Pradhan, Gopikant Goswami, Aroonkumar Beesham
In this paper, an attempt is made to construct a Friedmann-Lemaitre-Robertson-Walker model in gravity with a perfect fluid that yields acceleration at late times. We take…