Results 11 to 20 of about 105,508 (303)
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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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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Red thick disks of nearby galaxies [PDF]
The Astronomical Journal, 2004 Edge on systems reveal the properties of disk galaxies as a function of height, z, above the plane. Four local edge-on galaxies, that are close enough to have been resolved into stars by the Hubble Space Telescope, show thick disks, composed of a red stellar population, which is old and relatively metal rich.
arxiv +6 more sources
The thick disks of spiral galaxies as relics from gas-rich, turbulent, clumpy disks at high redshift [PDF]
Astrophys.J.707:L1-L5,2009, 2009 The formation of thick stellar disks in spiral galaxies is studied. Simulations of gas-rich young galaxies show formation of internal clumps by gravitational instabilities, clump coalescence into a bulge, and disk thickening by strong stellar scattering. The bulge and thick disks of modern galaxies may form this way.
F. Bournaud +2 more
arxiv +3 more sources
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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, 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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Comparison of magnetized thick disks around black holes and boson stars [PDF]
European Physical Journal C: Particles and FieldsBoson stars are considered as promising candidates for black hole mimickers. Similar to other compact objects they can form accretion disks around them.
Kristian Gjorgjieski +2 more
doaj +2 more sources
Milky Way's thick and thin disk: Is there a distinct thick disk? [PDF]
Astronomische Nachrichten, 2016 AbstractThis article is based on our discussion session on Milky Way models at the 592 WE‐Heraeus Seminar, Reconstructing the Milky Way's History: Spectroscopic Surveys, Asteroseismology and Chemodynamical Models. The discussion focused on the following question: “Are there distinct thick and thin disks?”.
Kawata, D, Chiappini, C
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Mapping the Asymmetric Thick Disk: The Hercules Thick-Disk Cloud [PDF]
The Astrophysical Journal, 2008 The stellar asymmetry of faint thick disk/inner halo stars in the first quadrant first reported by Larsen & Humphreys (1996) and investigated further by Parker et al. (2003, 2004) has been recently confirmed by SDSS (Juric et al. 2008). Their interpretation of the excess in the star counts as a ringlike structure, however, is not supported by ...
Roberta M. Humphreys +2 more
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ON THE FORMATION OF GALACTIC THICK DISKS [PDF]
The Astrophysical Journal, 2015 5 pages, 2 figures, Accepted for publication in ApJ ...
I. Minchev +5 more
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