Results 61 to 70 of about 464 (180)
Journal of Geophysical Research: Planets, Volume 129, Issue 3, March 2024.Abstract Toroidal atmospheres and exospheres characterized at exoplanets may be fueled by volcanically active exomoons, often referred to as exo‐Ios. We study the neutral outgassing and volatile evolution of a close‐orbiting, evaporating satellite at eight candidate exoplanet‐exomoon systems WASP‐49,‐96,‐69,‐17 b, XO‐2N b, HAT‐P‐1 b, HD‐189733 b, and ...
M. Meyer zu Westram, A. V. Oza, A. Galli
wiley +1 more source
Masses and Properties of Extrasolar Planets [PDF]
, 2018 NASA's Kepler Mission revealed that the majority of planets orbiting close to Sun-like stars are between the size of Earth and Neptune. Yet these \super-Earths" and \sub-Neptunes" are absent from our Solar System.
Sinukoff, Evan J.
core
Formation and structure of the three Neptune-mass planets system around HD 69830
, 2006 Accepted in AA LettersSince the discovery of the first giant planet outside the solar system in 1995 (Mayor & Queloz 1995), more than 180 extrasolar planets have been discovered. With improving detection capabilities, a new class of planets with masses 5-
F. Bouchy +22 more
core +1 more source
Redox state and interior structure control on the long-term habitability of stagnant-lid planets [PDF]
, 2022 A major goal in exoplanet science is the search for planets with the right conditions to support liquid water (1). The habitability of a planet depends strongly on the composition of its atmosphere. Meanwhile, the interior and atmosphere of rocky planets
Baumeister, Philipp +4 more
core
Effects of dynamical evolution of giant planets on survival of terrestrial planets
, 2013 The orbital distributions of currently observed extrasolar giant planets allow marginally stable orbits for hypothetical, terrestrial planets. In this paper, we propose that many of these systems may not have additional planets on these "stable" orbits ...
Soko Matsumura +5 more
core +1 more source
Impact of ηEarth on the Capabilities of Affordable Space Missions to Detect Biosignatures on Extrasolar Planets [PDF]
, 2015 peer reviewedWe present an analytic model to estimate the capabilities of space missions dedicated to the search for biosignatures in the atmosphere of rocky planets located in the habitable zone of nearby stars. Relations between performance and mission
Malbet, Fabien +9 more
core +1 more source
Photosynthesis in Hydrogen-Dominated Atmospheres
Life, 2014 The diversity of extrasolar planets discovered in the last decade shows that we should not be constrained to look for life in environments similar to early or present-day Earth.
William Bains, Sara Seager, Andras Zsom
doaj +1 more source
, 2017 Discoveries done during the last two decades have revealed the impressive diversity of extrasolar planetary systems. A diversity challenging our understanding of mechanisms of formation and evolution.
Mayor, Michel
core
Small and Close-in Planets are Uncommon Around A-type Stars
The Astronomical JournalThe Kepler and K2 missions enabled robust calculations of planet occurrence rates around FGKM-type stars. However, these missions observed too few stars with earlier spectral types to tightly constrain the occurrence rates of planets orbiting hotter ...
Steven Giacalone, Courtney D. Dressing
doaj +1 more source
Constraints on planetary formation from the discovery amp study of transiting Extrasolar Planets
, 2011 After centuries of wondering about the presence of other worlds outside our Solar System, the first extrasolar planets were discovered about fifteen years ago. Since the quest continued. The greatest discovery of our new line of research, exoplanetology,
Triaud, A.~H.~M.~J.; id_orcid +1 more
core +2 more sources