Results 21 to 30 of about 9,374,373 (212)

Exoplanets prediction in multiplanetary systems [PDF]

open access: yesPublications 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

exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series [PDF]

open access: yes, 2021
What's Changed Adding test and fixing deprecated unit parameters by @dfm in https://github.com/exoplanet-dev/exoplanet/pull/211 Removing old ValueError in Keplerian orbit that should never be hit by @dfm in https://github.com/exoplanet-dev/exoplanet ...
Savel, Arjun   +41 more
core   +2 more sources

Is there an exoplanet in the Solar system? [PDF]

open access: yesMonthly 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]

open access: yesAstrobiology, 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

Analysis of the exoplanet containing system Kepler-91 [PDF]

open access: yesAstrophysics 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

PLANETESIMAL COMPOSITIONS IN EXOPLANET SYSTEMS [PDF]

open access: yesThe 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 ...
Johnson, T.V.   +3 more
openaire   +3 more sources

exoplanet-dev/exoplanet: exoplanet v0.4.5

open access: yes, 2021
0.5.0 (2021-05-04) Adds high-level, pure-Theano/Aesara implementation of RegularGridInterpolator to replace compiled version #167 Moves compiled Ops to exoplanet-core making exoplanet a pure-Python package #171 Moves ReboundOp and ReboundOrbit to ...
emilygilbert   +10 more
core   +1 more source

Exoplanet imaging data challenge: benchmarking the various image processing methods for exoplanet detection [PDF]

open access: yes, 2020
The Exoplanet Imaging Data Challenge is a community-wide effort meant to offer a platform for a fair and common comparison of image processing methods designed for exoplanet direct detection. For this purpose, it gathers on a dedicated repository (Zenodo)
Desgrange, Célia   +81 more
core   +1 more source

Correlations between the stellar, planetary, and debris components of exoplanet systems observed by Herschel [PDF]

open access: yes, 2014
J.P.M., C.E., J.M. and B.M. are partially supported by Spanish grant AYA 2011-26202. This work was supported by the European Union through ERC grant number no.
Lestrade, J.-F.   +85 more
core   +1 more source

Testing exoplanet evaporation with multitransiting systems [PDF]

open access: yesMonthly 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

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