477 citations · 935 across the 25 of their papers we have counts for
25 papers
Probing Exotic Astrophysical Dark objects through Astrometric Microlensing from Gaia
Lalit Singh Bhandari, Vikram Rentala, Arun M. Thalapillil +1
We present the first comprehensive study of astrometric microlensing by exotic astrophysical dark objects, focusing on two theoretically motivated models -- Q-ball and boson star.…
A gravitational constant transition within cepheids as supernovae calibrators can solve the Hubble tension
Ruchika, Himansh Rathore, Shouvik Roy Choudhury +1
Local universe measurements of the Hubble constant (H0) using SNe Ia with Cepheids as calibrators yield a value of H0 which is in tension with the value inferred from the CMB and o…
Astrometric Microlensing of Primordial Black Holes with Gaia
Himanshu Verma, Vikram Rentala
The Gaia space telescope allows for unprecedented accuracy for astrometric measurements of stars in the Galaxy. In this work, we explore the sensitivity of Gaia to detect primordia…
Deep learning techniques for Imaging Air Cherenkov Telescopes
Songshaptak De, Writasree Maitra, Vikram Rentala +1
Very High Energy (VHE) gamma rays and charged cosmic rays (CCRs) provide an observational window into the acceleration mechanisms of extreme astrophysical environments. One of the…
A strong broadband 21 cm cosmological signal from dark matter spin-flip interactions
Mansi Dhuria, Viraj Karambelkar, Vikram Rentala +1
In the standard cosmology, it is believed that there are two relatively weak and distinct band-limited absorption features, with the first absorption minima near 20 MHz ()…
Measuring the polarization of boosted, hadronic bosons with jet substructure observables
Songshaptak De, Vikram Rentala, William Shepherd
In this work, we present a new technique to measure the longitudinal and transverse polarization fractions of hadronic decays of boosted bosons. We introduce a new jet substruc…