Results 1 to 10 of about 577,018 (252)
Dynamics of stellar and HI streams in the Milky Way halo [PDF]
EPJ Web of Conferences, 2012 Stellar streams are key players in many aspects of Milky Way studies and, in particular, studying their orbital dynamics is crucial for furthering our understanding of the Milky Wayʼs gravitational potential.
Jin S.
doaj +9 more sources
Testing modified Newtonian dynamics in the Milky Way [PDF]
Physical Review D, 2015 Modified Newtonian dynamics (MOND) is an empirical theory originally proposed to explain the rotation curves of spiral galaxies by modifying the gravitational acceleration, rather than by invoking dark matter.
Bertone, Gianfranco +2 more
core +8 more sources
Modified Newtonian Dynamics in the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Both microlensing surveys and radio-frequency observations of gas flow imply that the inner Milky Way is completely dominated by baryons, contrary to the predictions of standard cold dark matter (CDM) cosmology.
Binney, J., Famaey, B.
core +7 more sources
Celestial Mechanics and Dynamical Astronomy, 2006 The Milky Way is made up of a central bar, a disk with embedded spiral arms, and a dark matter halo. Observational and theoretical constraints for the characteristic parameters of these components will be presented, with emphasis on the constraints from the dynamics of the Milky Way gas.
Englmaier, Peter, Gerhard, Ortwin
arxiv +5 more sources
Locally Cold Flows from Large-Scale Structure [PDF]
, 2011 We show that the "cold" Hubble flow observed for galaxies around the Milky Way does not represent a problem in cosmology but is due to the particular geometry and dynamics of our local wall. The behavior of the perturbed Hubble flow around the Milky Way is the result of two main factors: at small scales (R < 1 Mpc) the inflow is dominated by the ...
A. S. Szalay +40 more
arxiv +3 more sources
Milky Way chemo-dynamics in the era of Gaia [PDF]
Astronomische Nachrichten, 2016 The main goal of Galactic Archaeology is understanding the formation and evolution of the basic Galactic components. This requires sophisticated chemo-dynamical modeling, where disc asymmetries (e.g., perturbations from the central bar, spirals arms, and
Adibekyan +35 more
core +5 more sources
The Dynamical Evolution of Accreted Star Clusters in the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We perform $N$-body simulations of star clusters in time-dependant galactic potentials. Since the Milky Way was built-up through mergers with dwarf galaxies, its globular cluster population is made up of clusters formed both during the initial collapse of the Galaxy and in dwarf galaxies that were later accreted.
Alison Sills +2 more
arxiv +5 more sources
Gas Dynamics and Large-Scale Morphology of the Milky Way Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We present a new model for the gas dynamics in the galactic disk inside the Sun's orbit. Quasi-equilibrium flow solutions are determined in the gravitational potential of the deprojected COBE NIR bar and disk, complemented by a central cusp and, in some ...
Englmaier, Peter, Gerhard, Ortwin
core +7 more sources
Dynamical evolution of a bulge in an N-body model of the Milky Way [PDF]
EPJ Web of Conferences, 2011 The detailed dynamical structure of the bulge in the Milky Way is currently under debate. Although kinematics of the bulge stars can be well reproduced by a boxy-bulge, the possible existence of a small embedded classical bulge can not be ruled out. We study the dynamical evolution of a small classical bulge in a model of the Milky Way using a self ...
Ortwin Gerhard +2 more
arxiv +6 more sources
The dynamic Milky Way in the Gaia era [PDF]
The Milky Way is a relatively typical galaxy, and we are in the middle of it. That allows astronomers to observe an enormous amount of individual stars and their properties. With the success of the Gaia mission, the amount of catalogued stars is reaching
Koop, Orlin
core +3 more sources