Photochemical hazes in sub-Neptunian atmospheres with focus on GJ 1214 b [PDF]
, 2019 We study the properties of photochemical hazes in super-Earths/mini-Neptunes atmospheres with particular focus on GJ1214b. We evaluate photochemical haze properties at different metallicities between solar and 10000$\times$solar.
Koskinen, Tommi +4 more
core +6 more sources
The Exoplanet Population Observation Simulator. II -- Population Synthesis in the Era of Kepler [PDF]
, 2019 The collection of planetary system properties derived from large surveys such as Kepler provides critical constraints on planet formation and evolution.
Apai, Daniel +5 more
core +3 more sources
Water Absorption in the Transmission Spectrum of the Water World Candidate GJ 9827 d
The Astrophysical Journal Letters, 2023 Recent work on the characterization of small exoplanets has allowed us to accumulate growing evidence that sub-Neptunes with radii greater than ∼2.5 R _⊕ often host H _2 /He-dominated atmospheres both from measurements of their low bulk densities and ...
Pierre-Alexis Roy +18 more
doaj +1 more source
The contribution of the major planet search surveys to EChO target selection [PDF]
, 2014 The EChO core science will be based on a three tier survey, each with increasing sensitivity, in order to study the population of exo-planets from super-Earths to Jupiter-like planets, in the very hot to temperate zones (temperatures of 300 K - 3000 K ...
Bakos, Gaspar A. +6 more
core +2 more sources
Where are the Water Worlds?: Self-consistent Models of Water-rich Exoplanet Atmospheres
The Astrophysical Journal, 2023 It remains to be ascertained whether sub-Neptune exoplanets primarily possess hydrogen-rich atmospheres or whether a population of H _2 O-rich water worlds lurks in their midst.
Eliza M.-R. Kempton +7 more
doaj +1 more source
Updated Planetary Mass Constraints of the Young V1298 Tau System Using MAROON-X
The Astronomical Journal, 2023 The early K-type T-Tauri star, V1298 Tau ( V = 10 mag, age ≈ 20–30 Myr) hosts four transiting planets with radii ranging from 4.9 to 9.6 R _⊕ . The three inner planets have orbital periods of ≈8–24 days while the outer planet’s period is poorly ...
James Sikora +16 more
doaj +1 more source
Photochemical Haze Formation in the Atmospheres of Super-Earths and Mini-Neptunes [PDF]
The Astronomical Journal, 2018 Abstract UV radiation can induce photochemical processes in exoplanet atmospheres and produce haze particles. Recent observations suggest that haze and/or cloud layers could be present in the upper atmospheres of exoplanets. Haze particles play an important role in planetary atmospheres and may provide a source of organic material to the
Chao He +10 more
openaire +2 more sources
Photolytic Hazes in the Atmosphere of 51 Eri b [PDF]
, 2016 We use a 1D model to address photochemistry and possible haze formation in the irradiated warm Jupiter, 51 Eridani b. The intended focus was to be carbon, but sulfur photochemistry turns out to be important.
Marley, Mark S. +3 more
core +3 more sources
Importance of Sample Selection in Exoplanet-atmosphere Population Studies
The Astronomical Journal, 2022 Understanding planet formation requires robust population studies, which are designed to reveal trends in planet properties. In this work we aim to determine if and how different methods for selecting populations of exoplanets for atmospheric ...
Natasha E. Batalha +7 more
doaj +1 more source
SIOUX project: a simultaneous multiband camera for exoplanet atmospheres studies [PDF]
, 2016 The exoplanet revolution is well underway. The last decade has seen order-of-magnitude increases in the number of known planets beyond the Solar system.
Bonomo, Aldo Stefano +13 more
core +2 more sources