7 papers
Modified Cosmology or Modified Galaxy Astrophysics is Driving the z>6 JWST Results? CMB Experiments can discover the Origin in the Near Future
Harsh Mehta, Suvodip Mukherjee
The massive and bright galaxies observed by the James Webb Space Telescope (JWST) at high redshifts () have challenged our understanding of the Universe. This may require re…
Gravitational Wave Burst from Bremsstrahlung in Milky Way Can Discover Sub-Solar Dark Matter in Near Future
Samsuzzaman Afroz, Suvodip Mukherjee
What is Dark Matter, and what is its concentration in the Milky Way remains an open question in physics. We show that if a significant fraction of dark matter is composed of sub-so…
Illuminating Dark Energy with Bright Standard Sirens from Future Detectors
Samsuzzaman Afroz, Suvodip Mukherjee, Gianmassimo Tasinato
Understanding the nature and evolution of dark energy (DE) is a central challenge in modern cosmology. In this work, we explore the constraining power of bright standard sirens --…
The First Model-Independent Chromatic Microlensing Search: No Evidence in the Gravitational Wave Catalog of LIGO-Virgo-KAGRA
Aniruddha Chakraborty, Suvodip Mukherjee
The lensing of Gravitational Waves (GWs) due to intervening matter distribution in the universe can lead to chromatic and achromatic signatures in the wave-optics and geometrical-o…
Multi-Messenger Cosmology: A Route to Accurate Inference of Dark Energy Beyond CPL Parametrization from XG Detectors
Samsuzzaman Afroz, Suvodip Mukherjee
One of the central challenges in modern cosmology is understanding the nature of dark energy and its evolution throughout the history of the Universe. Dark energy is commonly model…
Detecting Unmodeled, Source-dependent Signals in Gravitational Waves with SCoRe
Guillaume Dideron, Suvodip Mukherjee, Luis Lehner
New physics and systematic errors can lead to deviations between the models used to analyze gravitational wave data and the actual signal. Such deviations will generally be correla…