72 citations · 578 across the 38 of their papers we have counts for
18 papers · 1 filter
Probing (sub-)solar-mass black holes and superspinars with current and next-generation gravitational-wave observatories
K. S. Sruthy, N. V. Krishnendu, Chandrachur Chakraborty +1
Gravitational-wave observations provide a powerful probe of compact objects and strong-field gravity. In this work, we investigate the detectability of binaries containing (sub-)so…
Orbital dynamics and precession in magnetized Kerr spacetime
Karthik Iyer, Chandrachur Chakraborty
We study the orbital structure and precession dynamics of neutral test particles in the magnetized Kerr black hole (MKBH) spacetime-an exact electrovacuum solution of the Einstein-…
Spin Precession in magnetized Kerr spacetime
Karthik Iyer, Chandrachur Chakraborty
We present an exact analytical investigation of spin precession for a test gyroscope in the magnetized Kerr spacetime--an exact electrovacuum solution to the Einstein-Maxwell equat…
The Lunar Gravitational-wave Antenna: Mission Studies and Science Case
Parameswaran Ajith, Pau Amaro Seoane, Manuel Arca Sedda +83
The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response of the Moon to gravitational waves (GWs). Given the size…
Geometric phase in Taub-NUT spacetime
Chandrachur Chakraborty, Banibrata Mukhopadhyay
Constructing the Hamiltonian in the -representation, we explore the geometric phase in the Taub-NUT spacetime, which is spherically symmetric and stationary. The geometric phase…
Gravitational Larmor precession
Chandrachur Chakraborty, Parthasarathi Majumdar
Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagitarius A* and Messier 87*, we consider test particl…
Spin precession in the gravity wave analogue black hole spacetime
Chandrachur Chakraborty, Banibrata Mukhopadhyay
It was predicted that the spin precession frequency of a stationary gyroscope shows various anomalies in the strong gravity regime if its orbit shrinks, and eventually its precessi…
Gravitational analog of Faraday rotation in the magnetized Kerr and Reissner-Nordström spacetimes
Chandrachur Chakraborty
It is known that the gravitational analog of the Faraday rotation arises in the rotating spacetime due to the nonzero gravitomagnetic field. In this paper, we show that it also ari…
Spinning Gyroscope in an Acoustic Black Hole : Precession Effects and Observational Aspects
Chandrachur Chakraborty, Parthasarathi Majumdar
The exact precession frequency of a freely-precessing test gyroscope is derived for a dimensional rotating acoustic black hole analogue spacetime, without making the somewhat…
Distinguishing Kerr naked singularities and black holes using the spin precession of a test gyro in strong gravitational fields
Chandrachur Chakraborty, Prashant Kocherlakota, Mandar Patil +3
We study here the precession of the spin of a test gyroscope attached to a stationary observer in the Kerr spacetime, specifically, to distinguish naked singularity (NS) from black…
Spin precession in a black hole and naked singularity spacetimes
Chandrachur Chakraborty, Prashant Kocherlakota, Pankaj S. Joshi
We propose here a specific criterion to address the existence or otherwise of Kerr naked singularities, in terms of the precession of the spin of a test gyroscope due to the frame…
Frame-dragging Effect in Strong Gravity Regime
Chandrachur Chakraborty
The exact frame-dragging (or Lense-Thirring (LT) precession) rates for Kerr, Kerr-Taub-NUT (KTN) and Taub-NUT spacetimes have been derived. Remarkably, in the case of the `zero ang…
Intertial Frame Dragging in an Acoustic Analogue spacetime
Chandrachur Chakraborty, Oindrila Ganguly, Parthasarathi Majumdar
We report an incipient exploration of the Lense-Thirring precession effect in a rotating \textit{acoustic analogue black hole} spacetime. An exact formula is deduced for the preces…
Anomalous Lense-Thirring precession in Kerr-Taub-NUT spacetimes
Chandrachur Chakraborty
Exact Lense-Thirring (LT) precession in Kerr-Taub-NUT spacetime is reviewed. It is shown that the LT precession does not obey the general inverse cube law of distance at strong gra…
Inner-most stable circular orbits in extremal and non-extremal Kerr-Taub-NUT spacetimes
Chandrachur Chakraborty
We study causal geodesics in the equatorial plane of the extremal Kerr-Taub-NUT spacetime, focusing on the Innermost Stable Circular Orbit (ISCO),and compare its behaviour with ext…
Strong gravity Lense-Thirring Precession in Kerr and Kerr-Taub-NUT spacetimes
Chandrachur Chakraborty, Parthasarathi Majumdar
An exact expression derived in the literature for the rate of dragging of inertial frames (Lense-Thirring (LT) precession) in a general stationary spacetime, is reviewed. The exact…
Lense-Thirring Precession in Plebański-Demiański spacetimes
Chandrachur Chakraborty, Partha Pratim Pradhan
An exact expression of Lense-Thirring precession rate is derived for non-extremal and extremal Plebański-Demiański spacetimes. This formula is used to find the exact Lense-Thirring…
Lense-Thirring precession in strong gravitational fields
Chandrachur Chakraborty, Parthasarathi Majumdar
An exact expression for the rate of dragging of inertial frames (Lense-Thirring (LT) precession) in a general stationary spacetime, is derived without invoking the weak field appro…