Results 251 to 260 of about 45,998 (281)
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.
Ortwin Gerhard
exaly +4 more sources
The mass of the Milky Way from satellite dynamics [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Abstract We present and apply a method to infer the mass of the Milky Way (MW) by comparing the dynamics of MW satellites to those of model satellites in the eagle cosmological hydrodynamics simulations. A distribution function (DF) for galactic satellites is constructed from eagle using specific angular momentum and specific energy ...
Thomas M Callingham +2 more
exaly +4 more sources
Milky Way dynamics in light of Gaia
New Astronomy ReviewsThe Gaia mission has triggered major developments in the field of Galactic dynamics in recent years, which we discuss in this review. The structure and kinematics of all Galactic components - disc, bar/bulge and halo - are now mapped in great detail not only in the Solar neighbourhood, but across a large part of the Milky Way. The dramatic improvements
Eugene Vasiliev, Jason A S Hunt
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
The Structure and Dynamics of the Milky Way Galaxy
2002Now that we have become familiar with the stars, their properties and their motions, and also with the various components of the interstellar medium, we have collected all the “parts” we need in order to consider our Milky Way galaxy. We begin in Sect. 11.1 with the information about the structure of the Milky Way which can be gained from observations ...
Albrecht Unsöld, Bodo Baschek
openaire +1 more source
Dynamics of the Milky Way Bar/Bulge
Proceedings of the International Astronomical Union, 2019AbstractStellar surveys and dynamical models have recently led to important progress on understanding the dynamical structure of the Milky Way’s bar and central box/peanut bulge. This talk briefly reviews the density structure of the bulge and bar from star count tomography, the cylindrical rotation of bulge stars, and the measurements of their stellar
openaire +2 more sources
Rotation and Dynamics of the Milky Way Galaxy
2020When Oort returned to Leiden, his parents were in the Dutch East Indies for a year. Already on September 1, the day after his arrival, Oort was introduced to the staff at the Sterrewacht and started his appointment. His old study friend from Groningen, Jan Schilt, also worked in Leiden.
openaire +1 more source
Towards an Understanding of the Dynamics of the Milky Way
2005Determination of outer rotation curve using Galactic masers The rotation curve of the Galaxy is poorly determined outside the solar circle (e.g. Honma & Sofue 1997). The situation makes difficult to derive the dynamical mass of the Galaxy, which is essential for inferring the amount of Galactic dark gravitating matter.
K. Hachisuka, M. Miyoshi
openaire +1 more source
Chemo-dynamical simulations of the Milky Way
2004Using a state of the art galaxy formation software package, GCD+, we model the formation and evolution of galaxies which resemble our own Galaxy, the Milky Way. The simulations include gravity, gas dynamics, radiative gas cooling, star formation and stellar evolution, tracing the production of several elements and the subsequent pollution of the ...
openaire +1 more source
Stellar populations and dynamics in the Milky Way galaxy
2001Our Galaxy offers a unique opportunity to deduce the important physics involved in galaxy formation from observations of those old stars that were formed at the time of the formation of the Milky Way, and whose present properties contain some fossil record of the Galaxy’s history.
openaire +1 more source