Results 51 to 60 of about 299,348 (228)
Modelo dinâmico do Sistema Solar em actionscript com controle de escalas para ensino de astronomia
Neste trabalho é apresentado um software de simulação dinâmica do Sistema Solar, onde as escalas relativas entre as dimensões do Sol, dos planetas e suas órbitas podem ser ajustadas para melhorar a visualização e compreensão dos seus movimentos.
Anderson de Vechi +5 more
doaj +1 more source
A Statistical Reconstruction of the Planet Population Around Kepler Solar-Type Stars
Using the cumulative catalog of planets detected by the NASA Kepler mission, we reconstruct the intrinsic occurrence of Earth- to Neptune-size (1 - 4$R_{\oplus}$) planets and their distributions with radius and orbital period.
Gaidos, Eric, Silburt, Ari, Wu, Yanqin
core +1 more source
Searching for signatures of planet formation in stars with circumstellar debris discs [PDF]
(Abridged) Tentative correlations between the presence of dusty debris discs and low-mass planets have been presented. In parallel, detailed chemical abundance studies have reported different trends between samples of planet and non-planet hosts.
Eiroa, C. +4 more
core +4 more sources
Laboratory studies of electromagnetic signal generation as a result of charged dust particle collisions under simulated dynamics of the Earth’s atmosphere have been performed.
Mohamad E. Abdelaal +10 more
doaj +1 more source
Survival of habitable planets in unstable planetary systems
Many observed giant planets lie on eccentric orbits. Such orbits could be the result of strong scatterings with other giant planets. The same dynamical instability that produces these scatterings may also cause habitable planets in interior orbits to ...
Carrera, Daniel +2 more
core +1 more source
Thermal modeling of subduction zones with prescribed and evolving 2D and 3D slab geometries
The determination of the temperature in and above the slab in subduction zones, using models where the top of the slab is precisely known, is important to test hypotheses regarding the causes of arc volcanism and intermediate-depth seismicity.
Nathan Sime +2 more
doaj +1 more source
An Objective Classification Scheme for Solar-System Bodies Based on Surface Gravity
We introduce succinct and objective definitions of the various classes of objects in the solar system. Unlike the formal definitions adopted by the International Astronomical Union in 2006, group separation is obtained from measured physical properties ...
Dimitris M. Christodoulou +2 more
doaj +1 more source
What the Upper Atmospheres of Giant Planets Reveal
The upper atmospheres of the Giant Planets, Jupiter, Saturn, Uranus and Neptune are transition regions between meteorological layers and outer space. As a result of their exceptionally rarefied nature, they are highly sensitive and therefore revealing ...
James O’Donoghue, Tom Stallard
doaj +1 more source
Музыкально-математико-астрономический синтез в трудах древнегреческих ученых
В статье рассматривается проблема единства музыкально-математико-астрономических представлений античных ученых начала первого тысячелетия - неопифагорейца Никомаха и выдающегося астронома Клавдия Птолемея на основе их малоизученных трудов.
Александрова, Людмила Викторовна
doaj +1 more source
High-Sensitivity Seismometer Development for Lunar Applications
Lunar seismology is a critical area of research, providing insights into the Moon’s internal structure, composition, and thermal history, as well as informing the design of safe and resilient habitats for future human settlements. This paper presents the
Leandro A. N. de Paula +6 more
doaj +1 more source

