Milky Waydark matterstellar halodynamicssatellite galaxiesWe perform an extensive review of the numerous studies and methods used to determine the total mass of the Milky Way. We group the various methods into seven broad classes, including: i) estimating Galactic escape velocity using high velocity...
Milky Way n. 1.The galaxy containing the sun, solar system, and all of the individually visible stars in the night sky, along with various nebulae, star clusters, and dust clouds, thought to have a super-massive black hole at its center of mass. ...
Explore how big the Milky Way is and compare it to the sun. Learn the formula for calculating the mass of the Milky Way. Study the components of...
The centre of our Milky Way galaxy is too distantfor us to visit in person, but we can still explore it.Tele-scopes give us a chance to see what the Galactic Centrelooks like in different types of light. By translating the in-herently digital data (in the form of ones and zeroes)cap...
The last observed point of the Galactic rotation curve would suggest a Galactic size greater than or similar to 30 - 50 kpc and a total mass greater than or similar to 3.2 - 3.6 x 10(11) M(circle dot). Our fastest star, W7547, with V(T) = 509 km s(-1) but sigma(VT) ...
We set new limits on the mass of the Milky Way, making use of the latest kinematic information for Galactic satellites and halo objects. Our sample consists of 11 satellite galaxies, 137 globular clusters, and 413 field horizontal-branch (FHB) stars up to distances of 10 kpc from the Sun....
The model is used to estimate the total mass of the Milky Way halo using the latest data on the motions of satellite galaxies and globular clusters at Galactocentric radii greater than 20 kpc. This comprises a data set of 27 objects with known distances and radial velocities, of which six ...
A parametrized model of the mass distribution within the Milky Way is fitted to the available observational constraints. The most important single parameter is the ratio of the scalelength R d * of the stellar disc to R 0 . The disc and bulge dominate v c ( R ) at R R 0 only for ...
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...
Butno-oneknowshowmuchoftheMilkyWay'smassliesbeyonditsglitteringdisc. 但没有人知道银河系的质量里有多少是在它那闪闪发亮的圆盘之外的。 article.yeeyan.org 8. Therewasnoinklingofthesizeof theuniversebeyondtheMilkyWay,andradioactivity,relativityandquantumtheorywereunimaginable. ...