6 papers
Determination of the Angular Momentum of Radiated Gravitons, Scalars, and Dark Photons from Binary Orbits
Arpan Hait, Subhendra Mohanty
We compute the energy and angular momentum radiated by compact binaries through gravitational waves, scalar and vector fields, using the field-theoretic approach. We observe that e…
Limits on the axion-photon coupling from Chandrayaan-2 observations
Tanmoy Kumar, N. P. S. Mithun, Subhendra Mohanty +3
Axions and axion-like particles (ALPs) have gained immense attention in searches for beyond Standard Model (BSM) physics. Experiments searching for axions leverage their predicted…
Detection of Axion Stars in Galactic Magnetic Fields
Kuldeep J. Purohit, Jitesh R. Bhatt, Subhendra Mohanty +1
We perform a linear mode analysis of a uniformly distributed cloud of axion-like particles (ALPs) embedded in a magnetized intergalactic medium, in order to investigate the stabili…
A White Paper on The Multi-Messenger Science Landscape in India
Samsuzzaman Afroz, Sanjib Kumar Agarwalla, Dipankar Bhattacharya +35
The multi-messenger science using different observational windows to the Universe such as Gravitational Waves (GWs), Electromagnetic Waves (EMs), Cosmic Rays (CRs), and Neutrinos o…
Gravitational radiation from binary systems in Unimodular gravity
Indranil Chakraborty, Soumya Jana, Subhendra Mohanty
Unimodular gravity (UG) is classically considered identical to General Relativity (GR). However, due to restricted diffeomorphism symmetry, the Bianchi identites do not lead to the…
Ultra-light dark matter explanation of NANOGrav observations
Debtosh Chowdhury, Arpan Hait, Subhendra Mohanty +1
The angular correlation of pulsar residuals observed by NANOGrav and other pulsar timing array (PTA) collaborations show evidence in support of the Hellings-Downs correlation expec…