260 citations · 1.1k across the 35 of their papers we have counts for
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Tidal Disruption of Planetesimals from an Eccentric Debris Disk Following a White Dwarf Natal Kick
Tatsuya Akiba, Selah McIntyre, Ann-Marie Madigan
The surfaces of many white dwarfs are polluted by metals, implying a recent accretion event. The tidal disruption of planetesimals is a viable source of white dwarf pollution and o…
Steeper Scattered Disks Buckle Faster
Alexander Zderic, Ann-Marie Madigan
Disks of low-mass bodies scattered by giant planets to large semi-major axis and constant periapsis orbits are vulnerable to a buckling instability. This instability exponentially…
A Lopsided Outer Solar System
Alexander Zderic, Maria Tiongco, Angela Collier +3
Axisymmetric disks of eccentric orbits in near-Keplerian potentials are unstable to an out-of-plane buckling. Recently, Zderic et al. (2020) showed that an idealized disk saturates…
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…
Secular Eccentricity Oscillations in Axisymmetric Disks of Eccentric Orbits
Jacob Fleisig, Alexander Zderic, Ann-Marie Madigan
Massive bodies undergo orbital eccentricity oscillations when embedded in an axisymmetric disk of smaller mass orbits. These eccentricity oscillations are driven by secular torques…
On the Dynamics of the Inclination Instability
Ann-Marie Madigan, Alexander Zderic, Michael McCourt +1
Axisymmetric disks of eccentric Kepler orbits are vulnerable to an instability which causes orbits to exponentially grow in inclination, decrease in eccentricity, and cluster in th…
A new inclination instability reshapes Keplerian disks into cones: application to the outer Solar System
Ann-Marie Madigan, Michael McCourt
Disks of bodies orbiting a much more massive central object are extremely common in astrophysics. When the orbits comprising such disks are eccentric, we show they are susceptible…