Results 1 to 10 of about 3,499 (168)
Stability analysis of three exoplanet systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT 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 critical tool to probe the stability and feasibility of the candidate ...
M W Mengel +4 more
openaire +4 more sources
PLANETESIMAL COMPOSITIONS IN EXOPLANET SYSTEMS [PDF]
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. Of the major solid forming elements, we find that, as for the Sun, the C and O abundances (and particularly the C/O abundance ...
Olivier Mousis +2 more
exaly +4 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
openaire +3 more sources
Is there an exoplanet in the Solar system? [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2016 Abstract We investigate the prospects for the capture of the proposed Planet 9 from other stars in the Sun's birth cluster. Any capture scenario must satisfy three conditions: the encounter must be more distant than ∼150 au to avoid perturbing the Kuiper belt; the other star must have a wide-orbit planet (a ≳ 100 au); the planet must be ...
Mustill, Alexander J., +2 more
openaire +3 more sources
The Science of Exoplanets and Their Systems [PDF]
Astrobiology, 2013 A scientific forum on "The Future Science of Exoplanets and Their Systems," sponsored by Europlanet and the International Space Science Institute (ISSI) and co-organized by the Center for Space and Habitability (CSH) of the University of Bern, was held during December 5 and 6, 2012, in Bern, Switzerland.
Lammer, Helmut +22 more
openaire +7 more sources
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
Analysis of the exoplanet containing system Kepler-91 [PDF]
Astrophysics and Space Science, 2015 We have applied the graphical user interfaced close binary system analysis program WinFitter to an intensive study of Kepler 91 using all the available photometry from the NASA Exoplanet Archive (NEA) at the Caltech website: http://exoplanetarchive.ipac.caltech.edu . Our fitting function for the tidal distortion derives from the relevant Radau equation
Budding, E. +9 more
openaire +7 more sources
Testing exoplanet evaporation with multitransiting systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT 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. Even if masses are available for individual planets, the host star’s unknown EUV/X-ray
Owen, JE, Estrada, BC
openaire +3 more sources
DEBRIS DISKS INKEPLEREXOPLANET SYSTEMS [PDF]
The Astrophysical Journal, 2012 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 Infrared Survey Explorer (WISE) to search for emission from dust in these systems.
Lawler, S. M., Gladman, B.
openaire +2 more sources
X-Ray studies of exoplanet systems [PDF]
, 2022 X-rays are integral to furthering our knowledge of exoplanetary systems. In this work we discuss the use of X-ray observations to understand star-planet interac- tions, mass-loss rates of an exoplanet’s atmosphere and the study of an exoplanet’s atmospheric components using future X-ray spectroscopy.
openaire +1 more source