108 citations · 299 across the 9 of their papers we have counts for
9 papers
Axion Constraints from White Dwarf Cooling in 47 Tucanae
Leesa Fleury, Alysa Obertas, Harvey Richer +1
We analyse the cooling of white dwarfs in the globular cluster 47 Tucanae to look for evidence of axion emission affecting the rate of white dwarf cooling. If axions exist and coup…
On the Degree of Dynamical Packing in the Kepler Multi-planet Systems
Alysa Obertas, Daniel Tamayo, Norm Murray
Current planet formation theories rely on initially compact orbital configurations undergoing a (possibly extended) phase of giant impacts following the dispersal of the dissipativ…
Preliminary Analysis of Planetary Characteristics, Dynamics, and Climates from the Systems Alliance Planetary Survey Catalogue
Alysa Obertas, Adiv Paradise
Just a few decades after the discovery of the Charon Relay, and the ensuing First Contact War, relatively little is known about the population of planets linked by the Prothean mas…
Predicting the long-term stability of compact multiplanet systems
Daniel Tamayo, Miles Cranmer, Samuel Hadden +11
We combine analytical understanding of resonant dynamics in two-planet systems with machine learning techniques to train a model capable of robustly classifying stability in compac…
The Long Night: Modeling the Climate of Westeros
Adiv Paradise, Alysa Obertas, Anna O'Grady +1
Many previous authors have attempted to find explanations for Westeros's climate, characterized by a generally moderate, Earth-like climate punctuated by extremely long and cold wi…
Fast Radio Bursts from Terraformation
Almog Yalinewich, Mubdi Rahman, Alysa Obertas +1
Fast radio bursts (FRBs) are, as the name implies, short and intense pulses of radiation at wavelengths of roughly one metre. FRBs have extremely high brightness temperatures, whic…
The Onset of Convective Coupling and Freezing in the White Dwarfs of 47 Tucanae
Alysa Obertas, Ilaria Caiazzo, Jeremy Heyl +3
Using images from the Hubble Space Telescope Advanced Camera for Surveys, we measure the rate of cooling of white dwarfs in the globular cluster 47 Tucanae and compare it to modell…
The stability of tightly-packed, evenly-spaced systems of Earth-mass planets orbiting a Sun-like star
Alysa Obertas, Christa Van Laerhoven, Daniel Tamayo
Many of the multi-planet systems discovered to date have been notable for their compactness, with neighbouring planets closer together than any in the Solar System. Interestingly,…
A Machine Learns to Predict the Stability of Tightly Packed Planetary Systems
Daniel Tamayo, Ari Silburt, Diana Valencia +9
The requirement that planetary systems be dynamically stable is often used to vet new discoveries or set limits on unconstrained masses or orbital elements. This is typically carri…