Coral Wheeler
@socialistscientist.bsky.social
Assistant Professor of Physics and Astronomy at Cal Poly Pomona. I run simulations of the Universe's tiniest galaxies.
Failing to detect the stellar halo (SB cut; solid symbols) also increases the [Fe/H] of the simulated ultra-faints, but not enough to solve the discrepancy in the MZR at the lowest masses. (4/6)
June 23, 2025 at 3:58 AM
Failing to detect the stellar halo (SB cut; solid symbols) also increases the [Fe/H] of the simulated ultra-faints, but not enough to solve the discrepancy in the MZR at the lowest masses. (4/6)
while biasing mass estimates too high. Left: Wolf+ 2010 mass estimates compared to NFW profiles. Right: mass estimates for the *same galaxies* if outer stars below a certain effective surface brightness are removed. The galaxies are incorrectly placed in more massive halos. (3/6)
June 23, 2025 at 3:58 AM
while biasing mass estimates too high. Left: Wolf+ 2010 mass estimates compared to NFW profiles. Right: mass estimates for the *same galaxies* if outer stars below a certain effective surface brightness are removed. The galaxies are incorrectly placed in more massive halos. (3/6)