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MARVEL + DC = Wandering Black Holes

26 Mar 2021, 10:00 UTC
MARVEL + DC = Wandering Black Holes
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Title: The Origins of Off-Center Massive Black Holes in Dwarf GalaxiesAuthors: Jillian M. Bellovary, Sarra Hayoune, Katheryn Chafla et al.First Author’s Institution: Department of Physics, Queensborough Community College, City University of New York, 222-05 56th Ave, Bayside, NY, 11364Status: Submitted to MNRAS. Open access on Arxiv.
Overly strong dwarfsIt is well known that in the cosmic world massive large-scale objects tend to be more powerful. For example, massive galaxies are often hosts of supermassive black holes. However, recent observations have discovered that dwarf galaxies can host very massive black holes (MBHs) as well! While dwarf galaxies weigh less than 1% of our Milky Way, they can host black holes as massive as ~105 solar masses.Although many small infant galaxies and black hole seeds exist in the high-redshift universe, we are unable to directly observe their growth and formation due to their low brightness and distant location. However, it is still possible to get some clues on these mechanisms by studying nearby dwarf galaxies. For example, the small black holes in these dwarfs represent the low-mass end of scaled relations (e.g., black hole mass – stellar velocity dispersion), which indicates unique correlations between black holes and their host galaxies at early ...

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