Results 31 to 40 of about 409,060 (363)

Dynamical Outcomes of Planet‐Planet Scattering [PDF]

open access: yesThe Astrophysical Journal, 2008
Observations in the past decade have revealed extrasolar planets with a wide range of orbital semimajor axes and eccentricities. Based on the present understanding of planet formation via core accretion and oligarchic growth, we expect that giant planets often form in closely packed configurations.
Chatterjee, Sourav   +3 more
openaire   +3 more sources

Ontosonographic Maps: Toward a Theoretization of Soundscape Forms in the Anthropocene Epoch

open access: yesEtnoantropološki Problemi, 2021
This paper deals with the ways in which it is possible to conceptualize and map forms of soundscape in the epoch of the Anthropocene. After humans became a geological force, which is a role that used to be reserved for the planet itself, one can pose the
Andrija Filipović
doaj   +1 more source

A new family of planets? “Ocean-Planets” [PDF]

open access: yesIcarus, 2004
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these putative planets, including that of their ocean, as well as their possible Exobiology interest.
Leger, A.   +11 more
openaire   +4 more sources

The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au [PDF]

open access: yesAstronomical Journal, 2019
We present a statistical analysis of the first 300 stars observed by the Gemini Planet Imager Exoplanet Survey. This subsample includes six detected planets and three brown dwarfs; from these detections and our contrast curves we infer the underlying ...
E. Nielsen   +65 more
semanticscholar   +1 more source

Validação da Aplicação de Imagens Planet à Regularização Ambiental de Imóveis Rurais no Mato Grosso do Sul [PDF]

open access: yesAnuário do Instituto de Geociências, 2019
As legislações e normas ambientais direcionadas à preservação e monitoramento da utilização dos recursos naturais tem sido combustível para uma gama de pesquisas nas áreas das ciências ambientais.
Évelyn Camila Casadias Pinheiro   +2 more
doaj   +1 more source

Water vapour in the atmosphere of the habitable-zone eight-Earth-mass planet K2-18 b [PDF]

open access: yesNature Astronomy, 2019
In the past decade, observations from space and the ground have found water to be the most abundant molecular species, after hydrogen, in the atmospheres of hot, gaseous extrasolar planets1–5. Being the main molecular carrier of oxygen, water is a tracer
A. Tsiaras   +4 more
semanticscholar   +1 more source

Specific Analysis of Web Camera and High Resolution Planetary Imaging [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
Web camera is usually used for video communication between PC, it has small sensing area, cannot using long exposure application, so that is insufficient for astronomical application.
Youngsik Park   +3 more
doaj   +1 more source

Validation of Visually Interpreted Corine Land Cover Classes with Spectral Values of Satellite Images and Machine Learning

open access: yesRemote Sensing, 2021
We analyzed the Corine Land Cover 2018 (CLC2018) dataset to reveal the correspondence between land cover categories of the CLC and the spectral information of Landsat-8, Sentinel-2 and PlanetScope images.
Orsolya Gyöngyi Varga   +7 more
doaj   +1 more source

A giant planet candidate transiting a white dwarf [PDF]

open access: yesNature, 2020
Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs.
A. Vanderburg   +63 more
semanticscholar   +1 more source

THE FIRST PLANETS: THE CRITICAL METALLICITY FOR PLANET FORMATION [PDF]

open access: yesThe Astrophysical Journal, 2012
12 pages, 5 figures; accepted for publication in ...
Johnson, J., Li, H.
openaire   +3 more sources

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