A. explain why the same object has a different weight on different stars B. compare the distance between the Milky Way and Andromeda C. show that studying dark matter could help to answer some scientific questions D. support the idea that scientists prefer to talk about mass instead of weight...
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 Mass distribution of the Galaxy is reasonably well understood. Out to a radius of at least 200kpc, the enclosed mass increases roughly linearly with radius at about \\\(10^{10}M_\\\odot\\\) per kpc. The inner mass distribution is inconsistent with what we know to be present in ...
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....
Some of these models suggest that as much as 85% of the Galactic mass may be in the form of dark matter, and that about 50% of the total mass may lie in an outer dark-halo fall-off region. 展开 关键词: galaxy fundamental parameters - galaxy kinematics and dynamics ...
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...
As they indicate in their study, the mass of the Milky Way is fundamental to our understanding of astrophysics. Not only is it important in terms of placing our galaxy into the context of the general galaxy population, but it also plays a major role when addressing some of the greatest mys...
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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. ...
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 ...