Galaxies grow their bulges and black holes in diverse ways

  title={Galaxies grow their bulges and black holes in diverse ways},
  author={Eric F. Bell and Antonela Monachesi and Benjamin Harmsen and Roelof de Jong and Jeremy Bailin and David J. Radburn-Smith and Richard D’Souza and Benne W. Holwerda},
  journal={The Astrophysical Journal},
Galaxies with Milky Way-like stellar masses have a wide range of bulge and black hole masses; in turn, these correlate with other properties such as star formation history. While many processes may drive bulge formation, major and minor mergers are expected to play a crucial role. Stellar halos offer a novel and robust measurement of galactic merger history; cosmologically-motivated models predict that mergers with larger satellites produce more massive, higher metallicity stellar halos… Expand

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