10 citations · 33 across the 7 of their papers we have counts for
12 papers
Bar-driven Leading Spiral Arms in a Counter-rotating Dark Matter Halo
Emma Lieb, Angela Collier, Ann-Marie Madigan
An overwhelming majority of galactic spiral arms trail with respect to the rotation of the galaxy, though a small sample of leading spiral arms has been observed. The formation of…
Photometry and Kinematics of Self-Gravitating Eccentric Nuclear Disks
Heather N. Wernke, Ann-Marie Madigan
The Andromeda Galaxy hosts an elongated nucleus with (at least) two distinct brightness peaks. The double nucleus can be explained by the projection of a thick, apsidally-aligned e…
The Coupling of Galactic Dark Matter Halos with Stellar Bars
Angela Collier, Ann-Marie Madigan
Resonant torques couple stellar bars to dark matter halos. Here we use high-resolution numerical simulations to demonstrate long-term angular momentum transfer between stellar bars…
Galactic merger implications for eccentric nuclear disks: a mechanism for disk alignment
Alexander Rodriguez, Aleksey Generozov, Ann-Marie Madigan
The nucleus of our nearest, large galactic neighbor, M31, contains an eccentric nuclear disk--a disk of stars on eccentric, apsidally-aligned orbits around a supermassive black hol…
Giant Planet Influence on the Collective Gravity of a Primordial Scattered Disk
Alexander Zderic, Ann-Marie Madigan
Axisymmetric disks of high eccentricity, low mass bodies on near-Keplerian orbits are unstable to an out-of-plane buckling. This "inclination instability" exponentially grows the o…
Apsidal Clustering following the Inclination Instability
Alexander Zderic, Angela Collier, Maria Tiongco +1
Disks of low-mass bodies on high-eccentricity orbits in near-Keplerian potentials can be dynamically unstable to buckling out of the plane. In this letter, we present -body simu…