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Mostrando ítems 41-50 de 448
Formação planetária usando uma abordagem hidrodinâmica: aplicações em sistemas binários compactos e sistema Solar
(Universidade Estadual Paulista (Unesp), 2021-05-19)
Mais de 4 mil exoplanetas foram encontrados desde a descoberta, em 1995, do primeiro exoplaneta orbitando uma estrela da sequência principal. Essas descobertas, devem-se,em sua maioria à bem sucedida missão Kepler. A ...
High precision astrometry mission for the detection and characterization of nearby habitable planetary systems with the Nearby Earth Astrometric Telescope (NEAT)
(SPRINGERDORDRECHT, 2012)
A complete census of planetary systems around a volume-limited sample of solar-type stars (FGK dwarfs) in the Solar neighborhood (d a parts per thousand currency signaEuro parts per thousand 15 pc) with uniform sensitivity ...
Planetary formation and water delivery in the habitable zone around solar-type stars in different dynamical environments
(EDP Sciences, 2018-01)
Context. Observational and theoretical studies suggest that there are many and various planetary systems in the Universe. Aims. We study the formation and water delivery of planets in the habitable zone (HZ) around solar-type ...
Setting the stage: Planet formation and volatile delivery
(Springer, 2020-07-01)
The diversity in mass and composition of planetary atmospheres stems from the different building blocks present in protoplanetary discs and from the different physical and chemical processes that these experience during ...
Stellar multiplicity and debris discs: an unbiased sample
(Oxford University Press, 2015)
Circumstellar dust discs have been observed around many nearby stars. However, many
stars are part of binary or multiple stellar systems. A natural question arises regarding the
presence and properties of such discs in ...
On the nature of the tertiary companion to FW Tau: ALMA CO observations and SED modeling
(IOP Publishing, 2015)
It is thought that planetary mass companions may form through gravitational disk instabilities or core accretion. Identifying such objects in the process of formation would provide the most direct test for the competing ...
The Peculiar Chemical Pattern of the WASP-160 Binary System: Signatures of Planetary Formation and Evolution?
(IOP Publishing, 2021-12)
Wide binary stars with similar components hosting planets provide a favorable opportunity for exploring the star-planet chemical connection. We perform a detailed characterization of the solar-type stars in the WASP-160 ...
Chemical signatures of planets: beyond solar-twins
(EDP SciencesLes Ulis, 2014)
Context. Elemental abundance studies of solar twin stars suggest that the solar chemical composition contains signatures of the formation of terrestrial planets in the solar system, namely small but significant depletions ...