Results 21 to 30 of about 52,265 (308)

Astronomy Astrophysics Evolution of the solar irradiance during the Holocene [PDF]

open access: yes, 2011
International audienceContext. Long-term records of solar radiative output are vital for understanding solar variability and past climate change.
I. Usoskin   +10 more
core   +1 more source

Evolução do Sistema Solar Primordial em Termos de Grande História e Evolução Universal

open access: yesJournal of Big History, 2018
A presente contribuição é dedicada a alguns aspectos da história e evolução do Sistema Solar primordial. A origem do Sol, da Terra, de outros planetas e dos seus satélites tem sido de grande interesse para as pessoas.
Leonid Grinin
doaj   +1 more source

Insights on the Sun Birth Environment in the Context of Star Cluster Formation in Hub–Filament Systems

open access: yesThe Astrophysical Journal Letters, 2023
Cylindrical molecular filaments are observed to be the main sites of Sunlike star formation, while massive stars form in dense hubs at the junction of multiple filaments.
Doris Arzoumanian   +9 more
doaj   +1 more source

A ring system detected around the Centaur (10199) Chariklo [PDF]

open access: yes, 2014
Hitherto, rings have been found exclusively around the four giant planets in the Solar System1. Rings are natural laboratories in which to study dynamical processes analogous to those that take place during the formation of planetary systems and galaxies.
Vanzi, L.   +228 more
core   +1 more source

Concentrating Solar Power Technologies

open access: yesEnergies, 2019
Nowadays, the evolution of solar energy use has turned into a profound issue because of the implications of many points of view, such as technical, social, economic and environmental that impose major constraints for policy-makers in optimizing solar ...
Maria Simona Răboacă   +7 more
doaj   +1 more source

An advanced protection coordination technique for solar in-feed distribution systems

open access: yesAin Shams Engineering Journal, 2019
Distributed electricity resources (DERs) are power generating sources which are installed to meet the increasing peak demand. Renewable and zilch emission characteristics are making them as a perfect choice in distribution system.
M.V. Tejeswini   +3 more
doaj   +1 more source

Evolution of Stars on The Establishment of The Solar System and Planetary System

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2016
This research is the literature studies that provide an introduction to the theory of the formation and early evolution of solar system and planetary systems.
Khilyatul Khoiriyah
doaj   +1 more source

Solar evolution and extrema: current state of understanding of long-term solar variability and its planetary impacts

open access: yesProgress in Earth and Planetary Science, 2021
The activity of stars such as the Sun varies over timescales ranging from the very short to the very long—stellar and planetary evolutionary timescales.
Dibyendu Nandy   +4 more
doaj   +1 more source

The role of protostellar jets in star formation and the evolution of the early solar system: Astrophysical and meteoritical perspectives

open access: yes, 2012
The rock record from the early solar system indicates high-temperature thermal processing sufficient to melt refractory oxides and silicates. The astrophysical context for the formation and evolution of our solar system, from a molecular cloud to a ...
Salmeron, Raquel, Ireland, Trevor
core   +1 more source

The Early Evolution of the Solar System [PDF]

open access: yesInternational Astronomical Union Colloquium, 1971
The problems of relating collapse conditions in an interstellar cloud to a model of the primitive solar nebula are discussed. In such a nebula there is a radial force balance between gravity, the pressure gradient, and centrifugal forces due to the rotation.
openaire   +1 more source

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