Atmospheric escape and the evolution of close-in exoplanets

JE Owen - Annual Review of Earth and Planetary Sciences, 2019 - annualreviews.org
Exoplanets with substantial hydrogen/helium atmospheres have been discovered in
abundance, many residing extremely close to their parent stars. The extreme irradiation …

The Nature and Origins of Sub‐Neptune Size Planets

JL Bean, SN Raymond, JE Owen - Journal of Geophysical …, 2021 - Wiley Online Library
Planets intermediate in size between the Earth and Neptune, and orbiting closer to their host
stars than Mercury does the Sun, are the most common type of planet revealed by exoplanet …

Habitability and biosignatures of Hycean worlds

N Madhusudhan, AAA Piette… - The Astrophysical …, 2021 - iopscience.iop.org
We investigate a new class of habitable planets composed of water-rich interiors with
massive oceans underlying H 2-rich atmospheres, referred to here as Hycean worlds. With …

The Transiting Exoplanet Survey Satellite: simulations of planet detections and astrophysical false positives

PW Sullivan, JN Winn… - The Astrophysical …, 2015 - iopscience.iop.org
ABSTRACT The Transiting Exoplanet Survey Satellite (TESS) is a NASA-sponsored
Explorer mission that will perform a wide-field survey for planets that transit bright host stars …

Understanding the mass–radius relation for sub-Neptunes: radius as a proxy for composition

ED Lopez, JJ Fortney - The Astrophysical Journal, 2014 - iopscience.iop.org
Transiting planet surveys like Kepler have provided a wealth of information on the
distribution of planetary radii, particularly for the new populations of super-Earth-and sub …

The PLATO 2.0 mission

H Rauer, C Catala, C Aerts, T Appourchaux… - Experimental …, 2014 - Springer
PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing
accurate key planet parameters (radius, mass, density and age) in statistical numbers, it …

Planet occurrence within 0.25 AU of solar-type stars from Kepler

AW Howard, GW Marcy, ST Bryson… - The Astrophysical …, 2012 - iopscience.iop.org
We report the distribution of planets as a function of planet radius, orbital period, and stellar
effective temperature for orbital periods less than 50 days around solar-type (GK) stars …

The role of core mass in controlling evaporation: the Kepler radius distribution and the Kepler-36 density dichotomy

ED Lopez, JJ Fortney - The Astrophysical Journal, 2013 - iopscience.iop.org
We use models of coupled thermal evolution and photo-evaporative mass loss to
understand the formation and evolution of the Kepler-36 system. We show that the large …

The mass–radius relation for 65 exoplanets smaller than 4 Earth radii

LM Weiss, GW Marcy - The Astrophysical Journal Letters, 2014 - iopscience.iop.org
We study the masses and radii of 65 exoplanets smaller than 4 R⊕ with orbital periods
shorter than 100 days. We calculate the weighted mean densities of planets in bins of 0.5 …

Planets and stellar activity: hide and seek in the CoRoT-7 system

RD Haywood, A Collier Cameron… - Monthly notices of …, 2014 - academic.oup.com
Since the discovery of the transiting super-Earth CoRoT-7b, several investigations have
yielded different results for the number and masses of planets present in the system, mainly …