69 citations · 193 across the 12 of their papers we have counts for
12 papers
Defining eccentricity for gravitational wave astronomy
Md Arif Shaikh, Vijay Varma, Harald P. Pfeiffer +2
Eccentric compact binary mergers are significant scientific targets for current and future gravitational wave observatories. To detect and analyze eccentric signals, there is an in…
Improved early-warning estimates of luminosity distance and orbital inclination of compact binary mergers using higher modes of gravitational radiation
Mukesh Kumar Singh, Divyajyoti, Shasvath J. Kapadia +2
The pre-merger (early-warning) gravitational-wave (GW) detection and localization of a compact binary merger would enable astronomers to capture potential electromagnetic (EM) emis…
Carter-Penrose diagrams for emergent spacetime in axisymmetrically accreting black hole systems
Susovan Maity, Md Arif Shaikh, Pratik Tarafdar +1
For general relativistic, inviscid, axisymmetric flow around Kerr black hole one may choose different flow thickness. The stationary flow equations can be solved using methods of d…
Deep Learning with Quantized Neural Networks for Gravitational Wave Forecasting of Eccentric Compact Binary Coalescence
Wei Wei, E. A. Huerta, Mengshen Yun +5
We present the first application of deep learning forecasting for binary neutron stars, neutron star - black hole systems, and binary black hole mergers that span an eccentricity r…
Improved early warning of compact binary mergers using higher modes of gravitational radiation: A population study
Mukesh Kumar Singh, Shasvath J. Kapadia, Md Arif Shaikh +2
A gravitational-wave (GW) early-warning of a compact-binary coalescence event, with a sufficiently tight localisation skymap, would allow telescopes to point in the direction of th…
Of Harbingers and Higher Modes: Improved gravitational-wave early-warning of compact binary mergers
Shasvath J. Kapadia, Mukesh Kumar Singh, Md Arif Shaikh +2
A crucial component to maximizing the science gain from the multi-messenger follow-up of gravitational-wave (GW) signals from compact binary mergers is the prompt discovery of the…
Effective sound speed in relativistic accretion discs around Schwarzschild black holes
Md Arif Shaikh, Susovan Maity, Sankhasubhra Nag +1
For low angular momentum axially symmetric accretion flow maintained in hydrostatic equilibrium along the vertical direction, the value of the Mach number at the critical points de…
Linear perturbations of low angular momentum accretion flow in the Kerr metric and the corresponding emergent gravity phenomena
Md Arif Shaikh, Tapas Kumar Das
For certain geometric configuration of matter falling onto a rotating black hole, we develop a novel linear perturbation analysis scheme to perform the stability analysis of statio…
Charged wormholes supported by 2-fluid immiscible matter particles
Safiqul Islam, Md Arif Shaikh, Tapas Kumar Das +2
We provide a 2-fluid immiscible matter source that supplies fuel to construct wormhole spacetime. The exact wormhole solutions are found in the model having, besides real matter or…
Relativistic sonic geometry for isothermal accretion in the Kerr metric
Md Arif Shaikh
We linearly perturb advective isothermal transonic accretion onto rotating astrophysical black holes to study the emergence of the relativistic acoustic spacetime and to investigat…
Relativistic sonic geometry for isothermal accretion in the Schwarzschild metric
Md Arif Shaikh, Ivleena Firdousi, Tapas K. Das
In this work, we perform linear perturbation on general relativistic isothermal accretion onto a non-rotating astrophysical black hole to study the salient features of the correspo…
Acoustic geometry obtained through the perturbation of the Bernoulli's constant
Satadal Datta, Md Arif Shaikh, Tapas K Das
For accretion onto astrophysical black holes, we demonstrate that linear perturbation of Bernoulli's constant defined for an inviscid irrotational adiabatic flow of perfect ideal f…