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78 papers
Investigating the Impact of Supernova Feedback on Satellites in Elliptical Galaxies
Sumi Kim, Ena Choi, Amanda C. N. Quirk +4
We investigate the influence of supernova (SN) feedback on the satellites of elliptical host galaxies using hydrodynamic simulations. Utilizing a modified version of the GADGET-3 c…
Galactic disc heating by density granulation in fuzzy dark matter simulations
Hsun-Yeong Yang, Barry T. Chiang, Guan-Ming Su +3
Fuzzy dark matter (FDM), an attractive dark matter candidate comprising ultralight bosons (axions) with a particle mass eV, is motivated by the small-scale challe…
The Origins of Gas Accreted by Supermassive Black Holes: the Importance of Recycled Gas
Ena Choi, Rachel S. Somerville, Jeremiah P. Ostriker +2
We investigate the fueling mechanisms of supermassive black holes (SMBHs) by analyzing ten zoom-in cosmological simulations of massive galaxies, with stellar masses $10^{11-12} M_{…
Active galactic nuclei feedback in an elliptical galaxy (III): the impacts and fate of cosmological inflow
Bocheng Zhu, Feng Yuan, Suoqing Ji +4
The cosmological inflow of a galaxy is speculated to be able to enter the galaxy and enhance the star formation rate (SFR) and black hole accretion rate (BHAR). In this paper, by p…
Can ultralight dark matter explain the age-velocity dispersion relation of the Milky Way disc: A revised and improved treatment
Barry T. Chiang, Jeremiah P. Ostriker, Hsi-Yu Schive
Ultralight axion-like particles eV, or Fuzzy Dark Matter (FDM), behave comparably to cold dark matter (CDM) on cosmological scales and exhibit a kpc-size de Bro…
The growth of intermediate mass black holes through tidal captures and tidal disruption events
Francesco Paolo Rizzuto, Thorsten Naab, Antti Rantala +5
We present simulations, including post-Newtonian dynamics, of dense clusters of low-mass stars harbouring central black holes (BHs) with initial masses of 50, 30…