Results 131 to 140 of about 22,347,435 (253)
The Astronomical JournalIt has been suggested that β Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star β Pic and therefore the planet’s parent protoplanetary disk, β Pic b’s C/O ratio suggests that it formed via ...
Henrique Reggiani +7 more
doaj +1 more source
Application of transit timing variation method (TTV) to exoplanet system TrES-3
Вісник Астрономічної школи, 2015 On the basis of the original photometric data, the light curves of several transits in the exoplanet system TrES-3 were simulated by Monte Carlo method. Using these curves, the estimates of precise values of mid-transit time were calculated to assess the
Yu. Kuznyetsova +4 more
doaj +1 more source
Multiplicity Study of Exoplanet Host Stars: the HD 3651 AB System [PDF]
, 2006 M. Mugrauer +4 more
openalex +1 more source
The Astrophysical JournalPlanet formation models suggest that the small exoplanets that migrate from beyond the snowline of the protoplanetary disk likely contain water-ice-rich cores (∼50% by mass), also known as water worlds.
Aritra Chakrabarty, Gijs D. Mulders
doaj +1 more source
Ammonia, Water Clouds and Methane Abundances of Giant Exoplanets and Opportunities for Super-Earth Exoplanets [PDF]
arXiv, 2014 Future direct-imaging exoplanet missions such as WFIRST/AFTA, Exo-C, and Exo-S will measure the reflectivity of exoplanets at visible wavelengths. The exoplanets to be observed will be located further away from their parent stars than is Earth from the Sun.
arxiv
Towards the Albedo of an Exoplanet: MOST Satellite Observations of Bright Transiting Exoplanetary Systems [PDF]
, 2008 Jason F. Rowe +9 more
openalex +1 more source
The HD 191939 Exoplanet System is Well Aligned and Flat
The Astronomical JournalAbstract We report the sky-projected spin–orbit angle λ for HD 191939 b, the innermost planet in a six-planet system, using Keck/KPF to detect the Rossiter–McLaughlin (RM) effect. Planet b is a sub-Neptune with radius 3.4 ± 0.8 R ⊕ and mass 10.0 ± 0.7 M ⊕ with an RM amplitude <1 m s−1.
Jack Lubin +27 more
openaire +4 more sources
Dynamics of Small Solar System Bodies and Exoplanets [PDF]
, 2010 The Gaia space mission to be operated in early 2012 by the European Space Agency (ESA), will make a huge step in our knowledge of the Sun's neighbor-hood, up to the Magellanic clouds. Somewhat closer, Gaia will also provide ma jor improvements in the science of asteroids, and more generally to our Solar System, either directly or indirectly.
Rudolf Dvorak, Jean J. Souchay
openaire +2 more sources
The Hot and Energetic Universe: Solar system and exoplanets
, 2013 The high resolution non-dispersive spectroscopy and unprecedented sensitivity of Athena+ will revolutionize solar system observing: the origin of the ions producing Jupiter's X-ray aurorae via charge exchange will be conclusively established, as well as their dynamics, giving clues to their acceleration mechanisms.
Branduardi-Raymont, G. +13 more
openaire +2 more sources
Using asteroseismology to characterise exoplanet host stars [PDF]
arXiv, 2018 The last decade has seen a revolution in the field of asteroseismology - the study of stellar pulsations. It has become a powerful method to precisely characterise exoplanet host stars, and as a consequence also the exoplanets themselves. This synergy between asteroseismology and exoplanet science has flourished in large part due to space missions such
arxiv