Buscar
Mostrando ítems 1-10 de 35
Modelling the inner debris disc of HR 8799
(2016-11-21)
In many ways, the HR 8799 planetary system strongly resembles our own. It features four giant planets and two debris belts, analogues to the Asteroid and Edgeworth-Kuiper belts. Here, we present the results of dynamical ...
Estudo da evolução dinâmica do sistema planetário HR8799 via simulações hidrodinâmicas
(Universidade Estadual Paulista (Unesp), 2021-05-27)
Entre mais de 3300 sistemas planetários conhecidos, o sistema HR8799 é um dos mais interessantes sistemas de planetas gigantes pois, nele contém pelo menos quatro planetas gigantes gasosos, com massas superiores à de ...
Debris Disk around Star HR 8799
(Spitzer Space Telescope - NASA, 2016)
Debris Disk around Star HR 8799
(Spitzer Space Telescope - NASA, 2011)
Resolving the planetesimal belt of HR 8799 with ALMA
(Oxford University Press, 2016)
The star HR 8799 hosts one of the largest known debris discs and at least four giant planets. Previous observations have found evidence for a warm belt within the orbits of the planets, a cold planetesimal belt beyond their ...
First light of the VLT planet finder SPHERE IV. Physical and chemical properties of the planets around HR8799
(EDP Sciences S.A., 2016-03)
Context. The system of four planets discovered around the intermediate-mass star HR8799 offers a unique opportunity to test planet formation theories at large orbital radii and to probe the physics and chemistry at play ...