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Mostrando ítems 91-100 de 708
Radiating, slowly rotating bodies in general relativity
(SABER ULA, 2006)
Yule-Simpson's paradox in galactic archaeology
(Wiley Blackwell Publishing, Inc, 2019-05)
Simpson's paradox, or Yule-Simpson effect, arises when a trend appears in different subsets of data but disappears or reverses when these subsets are combined. We describe here seven cases of this phenomenon for chemo-kinematical ...
Variations in the width, density, and direction of the Palomar 5 tidal tails
(IOP, 2020)
Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep grz ...
Comparative analysis of the orbital structure for non–cuspy and cuspy triaxial models of galaxies using different expansions of the gravitational potentialAnálisis comparativo de la estructura orbital de modelos de galaxias triaxiales no cuspidales y cuspidales utilizando distintas expansiones para el potencial gravitatorio
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 2013)
The dynamical mass of a classical Cepheid variable star in an eclipsing binary systems
(2010)
Stellar pulsation theory provides a means of determining the masses of pulsating classical Cepheid supergiants—it is the pulsation that causes their luminosity to vary. Such pulsational masses are found to be smaller than ...
Capture of field stars by giant interstellar clouds: The formation of moving stellar groups
(Wiley Blackwell Publishing, Inc, 2015-03)
In the solar neighbourhood, there are moving groups of stars with similar ages and others of stars with heterogeneous ages as the field stars. To explain these facts, we have constructed a simple model of three phases. ...
The Gaia-ESO Survey: a quiescent Milky Way with no significant dark/stellar accreted disc(a similar to...)
(OXFORD UNIV PRESS, 2015)
According to our current cosmological model, galaxies like the Milky Way are expected to experience many mergers over their lifetimes. The most massive of the merging galaxies will be dragged towards the disc plane, ...
Characterization of the continuum and kinematical properties of nearby NLS1
(EDP Sciences, 2019-09)
Aims. In order to study the slope and strength of the non-stellar continuum, we analysed a sample from nearby Narrow Line Seyfert1 (NLS1). Also, we re-examined the location of NLS1 galaxies on the MBH - σ relation, using ...
Interplay of tidal evolution and stellar wind braking in the rotation of stars hosting massive close-in planets
(The American Astronomical Society, 2020)