Results 31 to 40 of about 202,711 (324)
Selecting a Photometric System for Gaia: C, N, O and Alpha-Process Elements
The sensitivity of stellar spectra to C, N, O and α-process element abundances is discussed with the aim of taking this effect into account when selecting a photometric system for the Gaia orbiting observatory.
Tautvaišienė G. +2 more
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A ciência geográfica no helenismo: I -As mitografias de Gaia.
This article aims to discuss the participation of the myth of Gaia in the formation of geographical science in antiquity. For this purpose, Homer´s The Iliad and the Odyssey, the Homeric Hymns, The origin of the world and the gods according Hesiod's ...
Antonio Carlos Vitte +1 more
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Double stars and astrometric uncertainties in Gaia DR1
A significant number of double stars with separations up to 2.5 arcsec are present in the Gaia Data Release 1 astrometric catalogs. Limiting our analysis to a well-studied sample of 1124 doubles resolved by Hipparcos, provided with individual Tycho ...
Fabricius, Claus +2 more
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My own Passion compositions. Inspirations, texts, composing technique, musical language
This article is devoted to my own Lenten choral and organ music. At first, I introduce my mo- tives for undertaking creative activity, which include, among others, the atmosphere of my family house (my father, Wojciech Łukaszewski, was a composer).
Marcin Tadeusz ŁUKASZEWSKI
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This article considers some metaphysical and theological implications of the Anthropocene, which is the proposed name for a new geological epoch that is characterized by massive human disturbances of the Earth system.
Roberts Austin J.
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James Lovelock’s vision of Earth as a living cybernetic system is popular again. The surprising new preacher of Gaia is Bruno Latour. He uses the concept to refer to a holistic understanding of Earth, in which mankind is situated as integral part. Gaia becomes the catalyst and fundament for his philosophical attempt to design a new believe-system in ...
openaire +3 more sources
The contamination in the Gaia BP and RP spectra, caused by the LSF smearing, is a serious obstacle for the classification of stars since the contamination values at different wavelengths depend on temperatures, gravities, metallicities and interstellar ...
Straižys V. +2 more
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A compilation of known QSOs for the Gaia mission
Quasars are essential for astrometric in the sense that they are spatial stationary because of their large distance from the Sun. The European Space Agency (ESA) space astrometric satellite Gaia is scanning the whole sky with unprecedented accuracy up to
Cao, Zi-huang +3 more
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Expectations on the mass determination using astrometric microlensing by Gaia
Context. Astrometric gravitational microlensing can be used to determine the mass of a single star (the lens) with an accuracy of a few percent. To do so, precise measurements of the angular separations between lens and background star with an accuracy ...
Bastian, U., Klüter, J., Wambsganss, J.
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GAIA Spectroscopy and Radial Velocities [PDF]
GAIA spectroscopic and radial velocity performancies are reviewed on the base of ground-based test observations and simulations. The prospects for accurate analysis of stellar atmospheres (temperature, gravity, chemical abundances, rotation ...
Munari, Ulisse
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