9 citations · 17 across the 8 of their papers we have counts for
8 papers
Microlensing of fast and slow compact objects
Manish Tamta, Nirmal Raj, Himanshu Verma
Gravitational microlensing constraints on non-standard compact objects are conventionally derived assuming lenses trace the dark matter halo with velocities following a Maxwell-Bol…
An Updated SynthPop Model for Microlensing Simulations I: Model Description & Evaluation
Macy J. Huston, Alison L. Crisp, Marz Newman +21
The optimization and interpretation of microlensing surveys depends on having an accurate model of the Milky Way. However, existing population synthesis Galactic modeling tools oft…
Microlensing Black Hole Shadows-II: Constraining Primordial Black Hole Dark Matter using the photon rings of M87 and Sgr A*
Himanshu Verma, Priyanka Sarmah, Joseph Silk +1
The resolution of photon rings of Sgr~A and M87 is the next milestone of upcoming EHT-like interferometries. We extend the formalism developed in our previous work~\cite{Verma:…
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.…
Technique-agnostic exoplanet demography for the Roman era -- I. Testing a demography retrieval framework using simulated Kepler-like transit datasets
Akshay Priyadarshi, Eamonn Kerins, Michael D. Albrow +41
The Nancy Grace Roman Space Telescope (Roman) will unveil for the first time the full architecture of planetary systems across Galactic distances through the discovery of up to 200…
Effects of Superradiance in Active Galactic Nuclei
Priyanka Sarmah, Himanshu Verma, Kingman Cheung +1
A supermassive black hole (SMBH) at the core of an active galactic nucleus (AGN) provides room for the elusive ultra-light scalar particles (ULSP) to be produced through a phenomen…
Microlensing Black Hole Shadows
Himanshu Verma, Joseph Silk
A detailed analysis is presented of gravitational microlensing by intervening compact objects of the black hole shadows imaged by the Event Horizon Telescope (EHT). We show how the…
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…