Results 11 to 20 of about 22,347,435 (253)
Stability analysis of three exoplanet systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 The orbital solutions of published multiplanet systems are not necessarily dynamically stable on time-scales comparable to the lifetime of the system as a whole. For this reason, dynamical tests of the architectures of proposed exoplanetary systems are a
J. Marshall +4 more
semanticscholar +6 more sources
Testing exoplanet evaporation with multitransiting systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 The photoevaporation model is one of the leading explanations for the evolution of small, close-in planets and the origin of the radius-valley. However, without planet mass measurements, it is challenging to test the photoevaporation scenario.
J. Owen, B. C. Estrada
semanticscholar +8 more sources
PLANETESIMAL COMPOSITIONS IN EXOPLANET SYSTEMS [PDF]
The Astrophysical Journal, 2012 We have used recent surveys of the composition of exoplanet host stars to investigate the expected composition of condensed material in planetesimals formed beyond the snow line in the circumstellar nebulae of these systems.
T. Johnson +3 more
semanticscholar +6 more sources
Alkaline exospheres of exoplanet systems: evaporative transmission spectra [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 Hydrostatic equilibrium is an excellent approximation for the dense layers of planetary atmospheres where it has been canonically used to interpret transmission spectra of exoplanets.
A. Gebek, A. Oza
semanticscholar +6 more sources
Speckle Imaging Characterization of Radial Velocity Exoplanet Systems [PDF]
The Astronomical Journal, 2020 We conducted speckle imaging observations of 53 stellar systems that were members of long-term radial velocity (RV) monitoring campaigns and exhibited substantial accelerations indicative of planetary or stellar companions in wide orbits.
P. Dalba +12 more
semanticscholar +7 more sources
Statistical Trends in the Obliquity Distribution of Exoplanet Systems [PDF]
The Astronomical Journal, 2018 Important clues to the formation and evolution of planetary systems can be inferred from the stellar obliquity ψ. We study the distribution of obliquities using the California-Kepler Survey and the TEPCat Catalog of Rossiter–McLaughlin (RM) measurements,
D. Muñoz, H. Perets
semanticscholar +5 more sources
DEBRIS DISKS IN KEPLER EXOPLANET SYSTEMS [PDF]
The Astrophysical Journal, 2011 The Kepler mission recently identified 997 systems hosting candidate extrasolar planets, many of which are super-Earths. Realizing these planetary systems are candidates to host extrasolar asteroid belts, we use mid-infrared data from the Wide-field ...
S. Lawler, B. Gladman
semanticscholar +5 more sources
What can exoplanets tell us about our Solar System? [PDF]
arXiv, 2002 We update our analysis of recent exoplanet data that gives us a partial answer to the question: How does our Solar System compare to the other planetary systems in the Universe? Exoplanets detected between January and August 2002 strengthen the conclusion that Jupiter is a typical massive planet rather than an outlier. The trends in detected exoplanets
Charles H. Lineweaver +2 more
arxiv +3 more sources
Exoplanets prediction in multiplanetary systems [PDF]
Publications of the Astronomical Society of Australia, 2021 AbstractWe present the results of a search for additional exoplanets in all multiplanetary systems discovered to date, employing a logarithmic spacing between planets in our Solar System known as the Titius–Bode (TB) relation. We use the Markov Chain Monte Carlo method and separately analyse 229 multiplanetary systems that house at least three or more ...
M. Mousavi-Sadr +2 more
openalex +7 more sources
Searching for transit timing variations in transiting exoplanet systems [PDF]
Proceedings of the International Astronomical Union, 2008 Searching for transit timing variations in the known transiting exoplanet systems can reveal the presence of other bodies in the system. Here we report such searches for two transiting exoplanet systems, TrES-1 and WASP-2.
M. Hrudkov'a +15 more
semanticscholar +5 more sources