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Determining Exoplanetary Oblateness Using Transit Depth Variations
John B. Biersteker, Hilke Schlichting
The measurement of an exoplanet's oblateness and obliquity provides insights into the planet's internal structure and formation history. Previous work using small differences in th…
Core-powered mass loss and the radius distribution of small exoplanets
Sivan Ginzburg, Hilke E. Schlichting, Re'em Sari
Recent observations identify a valley in the radius distribution of small exoplanets, with planets in the range significantly less common than somewhat…
Constraints on the Growth and Spin of the Supermassive Black Hole in M32 From High Cadence Visible Light Observations
R. Chary, G. Hallinan, L. K. Harding +2
We present 1-second cadence observations of M32 (NGC221) with the CHIMERA instrument at the Hale 200-inch telescope of the Palomar Observatory. Using field stars as a baseline for…
Avoiding resonance capture in multi-planet extrasolar systems
Margaret Pan, Hilke E. Schlichting
A commonly noted feature of the population of multi-planet extrasolar systems is the rarity of planet pairs in low-order mean-motion resonances. We revisit the physics of resonance…
Using Ice and Dust Lines to Constrain the Surface Densities of Protoplanetary Disks
Diana Powell, Ruth Murray-Clay, Hilke E. Schlichting
We present a novel method for determining the surface density of protoplanetary disks through consideration of disk 'dust lines' which indicate the observed disk radial scale at di…