25 citations · 70 across the 3 of their papers we have counts for
6 papers
A Statistical Analysis of the Nulling Pulsar Population
Sofia Z. Sheikh, Mariah G. MacDonald
Approximately 8% of the 2800 known pulsars exhibit "nulling," a temporary broadband cessation of normal pulsar emission. Nulling behaviour can be coarsely quantified by the n…
Chains of Planets in Mean Motion Resonances Arising from Oligarchic Growth
Sarah J. Morrison, Rebekah I. Dawson, Mariah G. MacDonald
Exoplanet systems with multiple planets in mean motion resonances have often been hailed as a signpost of disk driven migration. Resonant chains like Kepler-223 and Kepler-80 consi…
Forming Diverse Super-Earth Systems in Situ
Mariah G. MacDonald, Rebekah I. Dawson, Sarah J. Morrison +2
Super-Earths and mini-Neptunes exhibit great diversity in their compositional and orbital properties. Their bulk densities span a large range, from those dense enough to be purely…
Examining the Radius Valley: a Machine Learning Approach
Mariah G. MacDonald
The ''radius valley" is a relative dearth of planets between two potential populations of exoplanets, super-Earths and mini-Neptunes. This feature appears in examining the distribu…
Three Pathways for Observed Resonant Chains
Mariah G. MacDonald, Rebekah I. Dawson
A question driving many studies is whether the thousands of exoplanets known today typically formed where we observe them or formed further out in the disk and migrated in. Early d…
The orbital eccentricity of small planet systems
Vincent Van Eylen, Simon Albrecht, Xu Huang +8
We determine the orbital eccentricities of individual small Kepler planets, through a combination of asteroseismology and transit light-curve analysis. We are able to constrain the…