Results 11 to 20 of about 1,480 (207)
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
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Direct discovery of the inner exoplanet in the HD 206893 system [PDF]
Hinkley, S.; Lacour, S.; Marleau, G.-D.; Lagrange, A.-M.; Wang, J. J.; Kammerer, J.; Cumming, A.; Nowak, M.; Rodet, L.; Stolker, T.; Balmer, W.-O.; Ray, S.; Bonnefoy, M.; Mollière, P.; Lazzoni, C.; Kennedy, G.; Mordasini, C.; Abuter, R.; Aigrain, S.; Amorim, A.; ... (2023). Direct discovery of the inner exoplanet in the HD 206893 system. Astronomy and astrophysics, 671, L5. EDP Sciences 10.1051/0, 2022 Aims. HD 206893 is a nearby debris disk star that hosts a previously identified brown dwarf companion with an orbital separation of ∼10 au. Long-term precise radial velocity (RV) monitoring, as well as anomalies in the system proper motion, has suggested the presence of an additional, inner companion in the system. Methods.
Sasha Hinkley +99 more
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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
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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
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
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Solar System Physics for Exoplanet Research [PDF]
Publications of the Astronomical Society of the Pacific, 2020 Abstract Over the past three decades, we have witnessed one of the great revolutions in our understanding of the cosmos—the dawn of the Exoplanet Era. Where once we knew of just one planetary system (the solar system), we now know of thousands, with new systems being announced on a weekly basis.
T. Löhne +18 more
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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. 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 +4 more
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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
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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 ...
Matthew W. Mengel +5 more
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The Berlin Exoplanet Search Telescope System [PDF]
Publications of the Astronomical Society of the Pacific, 2003 We describe a small telescope system, the Berlin Exoplanet Search Telescope (BEST), dedicated to the search for planetary transits of Jupiter-sized planets on close-in orbits. This system consists of a commercial 20 cm telescope equipped with a 2048 x2048 pixel CCD.
H. Rauer +6 more
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