723 citations · 4.5k across the 41 of their papers we have counts for
29 papers · 1 filter
The language of exoplanet ranking metrics needs to change
Elizabeth Tasker, Joshua Tan, Kevin Heng +14
We have found many Earth-sized worlds but we have no way of determining if their surfaces are Earth-like. This makes it impossible to quantitatively compare habitability, and prete…
Radio Emission from Red-Giant Hot Jupiters
Yuka Fujii, David S. Spiegel, Tony Mroczkowski +5
When planet-hosting stars evolve off the main sequence and go through the red-giant branch, the stars become orders of magnitudes more luminous and, at the same time, lose mass at…
IAS15: A fast, adaptive, high-order integrator for gravitational dynamics, accurate to machine precision over a billion orbits
Hanno Rein, David S. Spiegel
We present IAS15, a 15th-order integrator to simulate gravitational dynamics. The integrator is based on a Gauß-Radau quadrature and can handle conservative as well as non-conserva…
Some inconvenient truths about biosignatures involving two chemical species on Earth-like exoplanets
Hanno Rein, Yuka Fujii, David S. Spiegel
The detection of strong thermochemical disequilibrium in the atmosphere of an extrasolar planet is thought to be a potential biosignature. In this article we present a new kind of…
Prospects for Detecting Oxygen, Water, and Chlorophyll on an Exo-Earth
Timothy D. Brandt, David S. Spiegel
The goal of finding and characterizing nearby Earth-like planets is driving many NASA high-contrast flagship mission concepts, the latest of which is known as the Advanced Technolo…
The Structure of Exoplanets
David S. Spiegel, Jonathan J. Fortney, Christophe Sotin
The hundreds of exoplanets that have been discovered in the past two decades offer a new perspective on planetary structure. Instead of being the archetypal examples of planets, th…