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astro-ph.GA2025
The low-mass and structured stellar halo of M83 argues against a merger origin for its starburst and extended neutral hydrogen disk
Eric F. Bell, Benjamin Harmsen, Matthew Cosby +12
A merger origin has been suggested for M83's massive, metal-rich extended HI disk and nuclear starburst. We observe M83's stellar halo to test this idea. We train nearest-neighbor…
astro-ph.GA2025★ 3 cited
Andromeda XXXV: The Faintest Dwarf Satellite of the Andromeda Galaxy
Jose Marco Arias, Eric F. Bell, Katya Gozman +8
We present the discovery of Andromeda XXXV, the faintest Andromeda satellite galaxy discovered to date, identified as an overdensity of stars in the Pan-Andromeda Archaeological Su…