collaborators

6 papers

astro-ph.EP2025

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. IV. Lens Mass and Distance Measurements

Sean K. Terry, Etienne Bachelet, Farzaneh Zohrabi +54

As part of the Galactic Bulge Time Domain Survey (GBTDS), the Nancy Grace Roman Galactic Exoplanet Survey (RGES) will use microlensing to discover cold outer planets and free-float…

astro-ph.GA2025

Hints of an Anomalous Lens Population towards the Galactic Bulge

Scott E. Perkins, Peter McGill, William A. Dawson +4

The dark and dynamic parts of the Galaxy, including the bulk shape and movement of the Galactic Bulge and characteristics of dark compact object populations, such as a hypothetical…

astro-ph.IM2025

The La Silla Schmidt Southern Survey

Adam A. Miller, Natasha S. Abrams, Greg Aldering +75

We present the La Silla Schmidt Southern Survey (LS4), a new wide-field, time-domain survey to be conducted with the 1 m ESO Schmidt telescope. The 268 megapixel LS4 camera mosaics…

astro-ph.SR2025

Assessing the Impact of Binary Systems on Microlensing Using SPISEA and PopSyCLE Population Simulations

Natasha S. Abrams, Jessica R. Lu, Casey Y. Lam +3

Gravitational microlensing provides a unique opportunity to probe the mass distribution of stars, black holes, and other objects in the Milky Way. Population simulations are necess…

astro-ph.IM2024

Microlensing Discovery and Characterization Efficiency in the Vera C. Rubin Legacy Survey of Space and Time

Natasha S. Abrams, Markus P. G. Hundertmark, Somayeh Khakpash +11

The Vera C. Rubin Legacy Survey of Space and Time will discover thousands of microlensing events across the Milky Way Galaxy, allowing for the study of populations of exoplanets, s…

astro-ph.SR2024

On Finding Black Holes in Photometric Microlensing Surveys

Zofia Kaczmarek, Peter McGill, Scott E. Perkins +5

There are expected to be millions of isolated black holes in the Galaxy resulting from the death of massive stars. Measuring the abundance and properties of this remnant population…