Results 11 to 20 of about 21,297 (217)

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.
Bockelée-Morvan, Bond, Delgado Mena, Dullemond, Fortney, Fossati, Gibb, Gibb, Gonzalez, Johnson, Jonathan I. Lunine, Lide, Lodders, Madhusudhan, Marboeuf, Mousis, Mousis, Nikku Madhusudhan, Olivier Mousis, Papaloizou, Petigura, Prinn, Takeda, Torrence V. Johnson, Wong, Öberg, Öberg   +26 more
core   +6 more sources

On the Ordering of Exoplanet Systems

The Astrophysical Journal
We present a comprehensive analysis of planetary radius ordering within multiplanet systems, namely their ordinal position with respect to their size in a given system, utilizing data from the NASA Exoplanet Archive. In addition, we consider not only the
Michael Lozovsky, Hagai B. Perets
doaj   +3 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.
Gebek, Andrea, Oza, Apurva V.
core   +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, G. Gozaliasl, D.M. Jassur   +2 more
openaire   +3 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   +5 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., Püsküllü, Ç., Demircan, O., Rhodes, M., Budding, Edwin, Püsküllü, Çağlar, Rhodes, Michael, Demircan, Osman, Erdem, A., Erdem, Ahmet   +9 more
openaire   +7 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

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, Blanc, Michel, Benz, Willy, Fridlund, Malcolm, Foresto, Vincent Coudé Du, Güdel, Manuel, Rauer, Heike, Udry, Stephane, Bonnet, Roger-Maurice, Falanga, Maurizio, Charbonneau, David, Helled, Ravit, Kley, Willy, Linsky, Jeffrey, Elkins-Tanton, Linda T., Alibert, Yann, Chassefière, Eric, Encrenaz, Therese, Hatzes, Artie P., Lin, Douglas, Liseau, Rene, Lorenzen, Winfried, Raymond, Sean N.   +22 more
openaire   +7 more sources

DYNAMIC EVOLUTION EXOPLANET SYSTEMS, MOVING IN ORBITAL RESONANCES WITH THE ACCOUNT OF SECULAR PERTURBATION FROM N BODIES

Odessa Astronomical Publications, 2017
Equations of exoplanet's motion connected with orbital Lindblad resonances with the account of secular terms caused by gravitational non-resonant perturbation are derived. Qualitative researches of orbital evolution modeling exoplanet systems are carried
B. R. Mushailov, A. K. Chuyas
doaj   +1 more source

Validating AU Microscopii d with Transit Timing Variations

The Astronomical Journal, 2023
AU Mic is a young (22 Myr), nearby exoplanetary system that exhibits excess transit timing variations (TTVs) that cannot be accounted for by the two known transiting planets nor stellar activity.
Justin M. Wittrock, Peter P. Plavchan, Bryson L. Cale, Thomas Barclay, Mathis R. Ludwig, Richard P. Schwarz, Djamel Mékarnia, Amaury H. M. J. Triaud, Lyu Abe, Olga Suarez, Tristan Guillot, Dennis M. Conti, Karen A. Collins, Ian A. Waite, John F. Kielkopf, Kevin I. Collins, Stefan Dreizler, Mohammed El Mufti, Dax L. Feliz, Eric Gaidos, Claire S. Geneser, Keith D. Horne, Stephen R. Kane, Patrick J. Lowrance, Eder Martioli, Don J. Radford, Michael A. Reefe, Veronica Roccatagliata, Avi Shporer, Keivan G. Stassun, Christopher Stockdale, Thiam-Guan Tan, Angelle M. Tanner, Laura D. Vega   +33 more
doaj   +1 more source