10 papers
Dark Matter in Draco and Boötes I: Hints of a Core in an Ultra-Faint Dwarf from Simulation-Based Inference
Tri Nguyen, Lina Necib, Ting S. Li +8
The density profiles of dwarf spheroidal galaxies are among the most sensitive probes of dark matter physics, yet extracting them from noisy stellar kinematics remains a fundamenta…
Reconstructing the orbits of Milky Way dwarf galaxies: An LMC perspective
Alberto Manuel MartÃnez-GarcÃa, Andrés del Pino, Roeland P. van der Marel +14
The orbital histories of the dwarf satellites of the Milky Way (MW) are key to understanding their evolution and placing their present-day properties in a dynamical context. We pre…
Hubble Astrometry for the Local Group and Beyond in the 2030s
S. Tony Sohn, Paul Bennet, Kevin Andrew McKinnon +23
Hubble's long, stable astrometric baseline creates a rare opportunity for discovery in the Local Group and beyond. Many nearby galaxies, streams, and star clusters already have arc…
Simulating Roman+Gaia Combined Astrometry, Parallaxes, and Proper Motions
Kevin A. McKinnon, Roeland P. van der Marel
The next generation of high-precision astrometry is rapidly approaching thanks to ongoing and upcoming missions like Euclid, LSST, and RST. We present a new tool (available at http…
Optimal and Unbiased Fluxes from Up-the-Ramp Detectors under Variable Illumination
Bowen Li, Kevin A. McKinnon, Andrew K. Saydjari +6
Near-infrared (NIR) detectors -- which use non-destructive readouts to measure time-series counts-per-pixel -- play a crucial role in modern astrophysics. Standard NIR flux extract…
A near field guide to Roman's wide-area surveys
Robyn E. Sanderson, Kevin A. McKinnon, Adrien C. R. Thob +7
The Nancy Grace Roman Space Telescope currently plans to survey nearly 6000 square degrees of the sky, mainly in the High-Latitude Wide-Area Survey (HLWAS) and Galactic Plane Surve…