Results 21 to 30 of about 200,659 (240)
Dynamics and morphology of the Milky Way spiral arms from the metallicity distribution and radial mixing [PDF]
, 2017 Albeit radial migration must be a ubiquitous process in disc galaxies, its significance in the evolution of stellar discs is not always reflected through global trends.
L. A. Martinez-Medina +3 more
openalex +3 more sources
Erratum: “Galactic Forces Rule the Dynamics of Milky Way Dwarf Galaxies” (2018, ApJ, 860, 76) [PDF]
Astrophysical Journal, 2018 (2018, ApJ, 860, 76) Francois Hammer , Yanbin Yang, Frederic Arenou, Carine Babusiaux, Jianling Wang, Mathieu Puech, and Hector Flores 1 GEPI, Observatoire de Paris, Université PSL, CNRS, Place Jules Janssen F-92195, Meudon, France; francois.hammer@obspm.
F. Hammer +6 more
openalex +2 more sources
Milky Way globular cluster dynamics: are they preferentially co-rotating? [PDF]
Research in Astronomy and Astrophysics, 2020 The motion of baryonic components of the Milky Way is governed by both luminous and dark matter content of the Galaxy. Thus, the dynamics of Milky Way globular clusters (GCs) can be used as tracers to infer the mass model of the Galaxy up to a large ...
Saikat Das, N. Roy
semanticscholar +5 more sources
The role of galactic dynamics in shaping the physical properties of giant molecular clouds in Milky Way-like galaxies [PDF]
, 2020 We examine the role of the large-scale galactic-dynamical environment in setting the properties of giant molecular clouds in Milky Way-like galaxies. We perform three high-resolution simulations of Milky Way-like discs with the moving-mesh hydrodynamics ...
Sarah Jeffreson +4 more
openalex +3 more sources
Large-scale Gas Dynamics in the Milky Way
, 2003 We present new gas flow models for the Milky Way inside the solar circle. Using a mass model derived from the COBE/DIRBE maps and clump giant star counts, and using a parametric model for the spiral arm pattern in the disk, we calculate the gas flow and compare with 12CO observations.
P. Englmaier +2 more
openalex +4 more sources
The barred inner Milky Way: dynamical models from surveys [PDF]
Proceedings of the International Astronomical Union, 2017 AbstractThe Milky Way is a barred galaxy whose central bulge has a box/peanut shape and consists of multiple stellar populations with different orbit distributions. This review describes dynamical and chemo-dynamical equilibrium models for the Bulge, Bar, and inner Disk based on recent survey data.
Gerhard, Ortwin
openaire +5 more sources
GAS DYNAMICS IN THE MILKY WAY: A LOW PATTERN SPEED MODEL [PDF]
The Astrophysical Journal, 2016 We present gas flow models for the Milky Way based on high-resolution grid-based hydrodynamical simulations. The basic galactic potential we use is from an N-body model constrained by the density of red clump giants in the Galactic bulge. We augment this
Zhi Li +4 more
semanticscholar +4 more sources
Structure and Dynamics of the Milky Way: The Evolving Picture
, 2010 From the inception of radio astronomy, the study of the Interstellar Medium has been both aided and frustrated by one fact: we are right within it! Our embedded perspective is favourable to observing kinematic and structural details that are likely to remain inaccessible in external galaxies for some time, but not so to gaining a birdseye view of our ...
T. Foster, Brendan Cooper
openalex +4 more sources
On the dynamics of tidal streams in the Milky Way galaxy
, 2010 We present a brief history of Galactic astrophysics, and explain the origin of halo substructure in the Galaxy. We motivate our study of tidal streams by highlighting the tight constraints that analysis of the trajectories of tidal streams can place on the form of the Galactic potential.
Andy Eyre
openalex +4 more sources
International Conference on Communications and Information Technology, 2018 After the discovery of radiation from Galactic Hydrogen gas clouds in 1951, the 21cm wavelength HI line had become the best marker to study spectral profiles in radio astronomy.
Mir Sakhawat Hossain, Banrupa Mallik
openalex +3 more sources