195 citations · 1.3k across the 24 of their papers we have counts for
22 papers · 1 filter
Quantifying tidal stream disruption in a simulated Milky Way
Emily Sandford, Andreas H. W. Kuepper, Kathryn V. Johnston +1
Simulations of tidal streams show that close encounters with dark matter subhalos induce density gaps and distortions in on-sky path along the streams. Accordingly, observing disru…
Direct N-body simulations of globular clusters -- III. Palomar\,4 on an eccentric orbit
Akram Hasani Zonoozi, Hosein Haghi, Pavel Kroupa +2
Palomar 4 is a low-density globular cluster with a current mass in the outer halo of the Milky Way with a two-body relaxation time of the order of a Hubble…
Exploding Satellites -- The Tidal Debris of the Ultra-Faint Dwarf Galaxy Hercules
Andreas H. W. Küpper, Kathryn V. Johnston, Steffen Mieske +2
The ultra-faint satellite galaxy Hercules has a strongly elongated and irregular morphology with detections of tidal features up to 1.3 deg (3 kpc) from its center. This suggests t…
Formation of Massive Black Holes in Galactic Nuclei: Runaway Tidal Encounters
Nicholas C. Stone, Andreas H. W. Kuepper, Jeremiah P. Ostriker
Nuclear star clusters (NSCs) and supermassive black holes (SMBHs) both inhabit galactic nuclei, coexisting in a range of bulge masses, but excluding each other in the largest or sm…
Dynamical Evolution of Outer-Halo Globular Clusters
Andreas H. W. Küpper, Akram H. Zonoozi, Hosein Haghi +5
Outer-halo globular clusters show large half-light radii and flat stellar mass functions, depleted in low-mass stars. Using N-body simulations of globular clusters on eccentric orb…
The Sizes of Globular Clusters as Tracers of Galactic Halo Potentials
Akram Hasani Zonoozi, Malihe Rabiee, Hosein Haghi +1
We present -body simulations of globular clusters, exploring the effect of different galactic potentials on cluster sizes, . For various galactocentric distances, , we…