Results 11 to 20 of about 1,109,137 (355)
The Emergence of the Thick Disk in a CDM Universe. II. Colors and Abundance Patterns [PDF]
, 2005 The recently emerging conviction that thick disks are prevalent in disk galaxies, and their seemingly ubiquitous old ages, means that the formation of the thick disk, perhaps more than any other component, holds the key to unravelling the evolution of ...
Chris B. Brook +3 more
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The Ages of the Thin Disk, Thick Disk, and the Halo from Nearby White Dwarfs [PDF]
, 2017 We present a detailed analysis of the white dwarf luminosity functions derived from the local 40 pc sample and the deep proper motion catalog of Munn et al (2014, 2017).
DeGennaro, Steven +7 more
core +2 more sources
Thick disks of lenticular galaxies - 3D-photometric thin/thick disk decomposition of eight edge-on S0 galaxies [PDF]
Astronomy & Astrophysics, 2004 Thick disks are faint and extended stellar components found around several disk galaxies including our Milky Way. The Milky Way thick disk, the only one studied in detail, contains mostly old disk stars (~10 Gyr), so that thick disks are likely to trace the early stages of disk evolution.
M. Pohlen +3 more
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Abundance trends in the thin and thick disks [PDF]
, 2004 Review article presented at the ESO-ARCETRI workshop on: Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites (September 13-17 2004), To be published in "ESO Astrophysics Symposia", Editors: Luca Pasquini and Sofia Randich, 6 pages, 4 figures (one in colour)
S. Feltzing
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Structural Parameters of Thin and Thick Disks in Edge-On Disk Galaxies [PDF]
The Astronomical Journal, 2005 We analyze the global structure of 34 late-type, edge-on, undisturbed, disk galaxies spanning a wide range of mass. We measure structural parameters for the galaxies using two-dimensional least-squares fitting to our $R$-band photometry. The fits require
Binggeli B. +20 more
core +4 more sources
Bifurcations in the wake of a thick circular disk [PDF]
Theoretical and Computational Fluid Dynamics, 2009 Using DNS, we investigate the dynamics in the wake of a circular disk of aspect ratio χ = d/w = 3(where d is the diameter and w the thickness) embedded in a uniform flow of magnitude U0 perpendicular to its symmetry axis. As the Reynolds number Re = U0d/ν is increased, the flow is shown to experience an original series of bifurcations leading to chaos.
Franck Auguste +2 more
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The Asymmetric Thick Disk: A Star-Count and Kinematic Analysis. II. The Kinematics [PDF]
, 2004 We report a kinematic signature associated with the observed asymmetry in the distribution of thick disk/inner halo stars interior to the Solar circle described in Paper I.
J. E. Parker +2 more
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Thick Disk Planetary Nebulae [PDF]
Proceedings of the International Astronomical Union, 2006 In this work we attempt to find Planetary Nebulae(PNe) belonging to the thick disk population of the Galaxy, based on the proper motion and radial velocity data of the objects available in literature, by using a simulation and Bayesian likelihood analysis.
J.K. Baliga, D. C. V. Mallik
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Clues to the formation of the Milky Way's thick disk [PDF]
Astronomy & Astrophysics, 2015 We analyze the chemical properties of a set of solar vicinity stars, and show that the small dispersion in abundances of -elements at all ages provides evidence that the star formation history (SFH) has been uniform throughout the thick disk.
M. Haywood +3 more
semanticscholar +7 more sources
, 2001 The star formation history of a galaxy, explicitely here our Milky Way Galaxy, where the most detailed information is attainable, is the convolution of two functions. One function describes the rate of formation of the stars which are today in the Galaxy. The second describes the assembly of those stars into the present Galactic potential well.
G. Gilmore, Rosemary F. Ġ. Wyse
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