These figures are similar to Figure 3 from Peroux+ (2020), and show a visualization of gas in the circumgalactic medium of TNG50 z=0.5 galaxies. The y-axis (vertical) direction represents gas metallicity, higher towards the top. The x-axis (horizontal) represents gas radial velocity, with negative (inflowing gas) towards the left, and positive (outflowing gas) towards the right. As a result, the common Γ shape, from the lower left to the upper right, reveals how accreting gas is preferentially low metallicity, while outflowing gas is preferentially metal rich. Color encodes distance, from an impact parameter of 90 kpc (blue) to 110 kpc (yellow).

No more images.