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Efficient time-domain eccentric model for Galactic binaries in LISA
Shubhanshu Tiwari, Johan O. A. Robertsson, A. Gopakumar +4
Galactic binaries are expected to be the most numerous long-lived sources in the Laser Interferometer Space Antenna (LISA) data stream and are commonly modeled as quasi-circular, n…
Search for hyperbolic encounters of compact objects in the third LIGO-Virgo-KAGRA observing run
Sophie Bini, Shubhanshu Tiwari, Yumeng Xu +6
Gravitational-wave (GW) observations provide unique information about compact objects. As detectors sensitivity increases, new astrophysical sources of GW could emerge. Close hyper…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
Testing General Relativity with Gravitational Waves: An Overview
N. V. Krishnendu, Frank Ohme
The detections of gravitational-wave (GW) signals from compact binary coalescence by ground-based detectors have opened up the era of GW astronomy. These observations provide oppor…
Series expansion of the overlap reduction function for scalar and vector polarizations for gravitational wave search with pulsar timing arrays
Adrian Boîtier, Tanguy Giroud, Shubhanshu Tiwari +1
In our previous work \cite{PTA2} we calculated the overlap reduction function for the tensor polarization without employing the short wavelength approximation, this was done by obt…
Analytic series expansion of the overlap reduction function for gravitational wave search with pulsar timing arrays
Adrian Boîtier, Shubhanshu Tiwari, Philippe Jetzer
In our previous paper \cite{PTA1} we derived a generic expression for the pulse redshift the main observable for the Pulsar Timing Array (PTA) experiment for detection of gravitati…