742 citations · 997 across the 10 of their papers we have counts for
10 papers
Accelerated parameter estimation in Bilby with relative binning
Kruthi Krishna, Aditya Vijaykumar, Apratim Ganguly +5
We describe an implementation of the relative binning technique to speed up parameter estimation of gravitational-wave signals. We first give a pedagogical overview of relative bin…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Dynamic Networks with Multi-scale Temporal Structure
Xinyu Kang, Apratim Ganguly, Eric D. Kolaczyk
We describe a novel method for modeling non-stationary multivariate time series, with time-varying conditional dependencies represented through dynamic networks. Our proposed appro…
Black hole stability under odd-parity perturbations in Horndeski gravity
Apratim Ganguly, Radouane Gannouji, Manuel Gonzalez-Espinoza +1
We study the stability under linear odd-parity perturbations of static spherically symmetric black holes in Horndeski gravity. We derive the master equation for these perturbations…
Global structure of static spherically symmetric solutions surrounded by quintessence
Miguel Cruz, Apratim Ganguly, Radouane Gannouji +2
We investigate all static spherically symmetric solutions in the context of general relativity surrounded by a minimally-coupled quintessence field, using dynamical system analysis…
Estimation of Vertex Degrees in a Sampled Network
Apratim Ganguly, Eric Kolaczyk
The need to produce accurate estimates of vertex degree in a large network, based on observation of a subnetwork, arises in a number of practical settings. We study a formalized ve…
Global structure of Black Holes via dynamical system
Apratim Ganguly, Radouane Gannouji, Rituparno Goswami +1
We recast the system of Einstein field equations for Locally Rotationally Symmetric spacetimes into an autonomous system of covariantly defined geometrical variables. The analysis…
Local Neighborhood Fusion in Locally Constant Gaussian Graphical Models
Apratim Ganguly, Wolfgang Polonik
In this paper we penetrate and extend the notion of local constancy in graphical models that has been introduced by Honorio et al. (2009). We propose Neighborhood-Fused Lasso, a me…
Accretion onto a black hole in a string cloud background
Apratim Ganguly, Sushant G. Ghosh, Sunil D. Maharaj
We examine the accretion process onto the black hole with a string cloud background, where the horizon of the black hole has an enlarged radius , due to the string c…
Neutron stars in Starobinsky model
Apratim Ganguly, Radouane Gannouji, Rituparno Goswami +1
We study the structure of neutron stars in theory of gravity (Starobinsky model), in an exact and non-perturbative approach. In this model, apart from the standard…