3 papers
astro-ph.GA2026
Characterizing the GD-1 Stream with DESI DR2 Data: Thin Stream and Hot Cocoon
Emma Jarvis, Ting S. Li, Sergey E. Koposov +54
GD-1 is among the longest, coldest stellar streams in the Milky Way, making it an ideal target for probing dark matter substructure through dynamical heating. We present a catalog…
astro-ph.GA2026
The velocity field of our Milky Way outer stellar halo based on DESI DR2
Songting Li, Wenting Wang, Sergey E. Koposov +53
Using 64,000 halo K giants from Dark Energy Spectroscopic Instrument (DESI) second Data Release (DR2), we decompose the Milky Way (MW) stellar halo between 3 and 160 kpc into metal…
astro-ph.GA2024
Exploring faint white dwarfs and the luminosity function with Subaru HSC and SDSS in Stripe 82
Tian Qiu, Masahiro Takada, Naoki Yasuda +4
We present 5,080 white dwarf (WD) candidates selected from stars matching between the multi-band imaging datasets of the Subaru Hyper Suprime-Cam (HSC) Survey and the Sloan Digital…