3 papers
astro-ph.GA2025
Dwarf galaxy halo masses from spectroscopic and photometric lensing in DESI and DES
Helena Treiber, Alexandra Amon, Risa H. Wechsler +46
We present the most precise and lowest-mass weak lensing measurements of dwarf galaxies to date, enabled by spectroscopic lenses from the Dark Energy Spectroscopic Instrument (DESI…
astro-ph.HE2025
Two decades of optical variability of Small Magellanic Cloud high-mass X-ray binaries
Helena Treiber, Georgios Vasilopoulos, Charles Bailyn +2
We present an analysis of the long-term optical/IR behavior of 111 high-mass X-ray binaries (HMXBs) in the Small Magellanic Cloud based on data from the OGLE collaboration. Most sy…
astro-ph.GA2025
The AGN Optical Variability Fundamental Plane
Ashley Tarrant, Jason Hinkle, Benjamin Shappee +10
We investigate the relationship between AGN optical variability timescales, amplitudes, and supermassive black hole (SMBH) masses using homogeneous light curves from the All-Sky Au…