3 papers
astro-ph.CO2025
Over-Luminous Type Ia Supernovae and Standard Candle Cosmology
Abhinandan Ravi, T. R. Govindarajan, Surajit Kalita
Type Ia supernovae (SNe\,Ia) serve as crucial cosmological distance indicators because of their empirical consistency in peak luminosity and characteristic light curve decline rate…
hep-ph2025
Stueckelberg field and Cosmology
T R Govindarajan
Stueckelberg introduced an axion like scalar field to provide mass to the gauge electromagnetic field without breaking gauge invariance. This can be considered as a precursor to th…
hep-ph2024
Ultralight Dark Matter -- A Novel proposal
T R Govindarajan
A novel proposal is made to account for the dark matter component of the Universe. Ultralight dark matter with mass is one of the strong candidates fo…