To answer this question, the researchers ran “the most complete and accurate to date” simulation of the formation of a Milky Way-like galaxy — a simulation that included not only the stars, but the gases between them. To run that simulation, they used ATERUI II, NAOJ’s in-house super...
The Milky Way galaxy is estimated to be 1 trillion to 2 trillion times more massive than the sun, according to CfA researchers. Most of that mass (about five-sixths) is dark matter, while the remaining mass consists of normal matter — gas, dust and stars. Even still, when astronomers ...
Several scenarios have been suggested to explain the phase-space distribution of the Milky Way (MW) satellite galaxies in a disc of satellites (DoS). To quantitatively compare these different possibilities, a new method analysing angular momentum directions in modelled data is presented. It ...
We have demonstrated that this expression can retrieve, with an excellent agreement, the recent measurements of the rotation speed of the Milky Way19 from 16 kpc and until the end of our Galaxy, with, in particular, the significantly faster decline they observe in the circular velocity curve co...
In the 1980's, Astronomer Bohdan Paczynski Proposed a Way of Determining Whether the Enormous Dark Halo Constituting the Outermost Part of the Milky Way Galaxy How likely are you to recommend collegedunia.com to a friend or a colleague? 1 Not so likely 2 3 4 5 6 7 8 9 10 Highly Likel...
(Examples available at Wikipedia's "List of Satellites of the Milky Way".) Apparently the title text refers to dwarf galaxies, which could be 90% of all galaxies. Of course, there is probably no obvious limit between a dwarf galaxy and a regular galaxy. At the other end of the scale...
X-ray and gamma-ray emission bubbles in the Milky Way. Credit: NASA A team of scientists from Russia and China has developed a model explaining the nature of high-energy cosmic rays (CRs) in our galaxy. These CRs have energies exceeding those produced by supernova explosions by one or two...
X-ray and gamma-ray emission bubbles in the Milky Way. Credit: NASA A team of scientists from Russia and China has developed a model explaining the nature of high-energy cosmic rays (CRs) in our galaxy. These CRs have energies exceeding those produced by supernova explosions by one or two...
An image of the glowing heart of the Milky Way, where stellar nurseries and intense activity is shrouded in a cloud of dust. A mysterious signal from some of the dustier regions of our galaxy could be coming from spinning grains of microscopic dust, new research suggests. (Image credit: ...
awhen man began to search the sky, he saw lots of things. In the universe(宇宙), the earth seemed to be just a bit of dust. It is only a small planet, and travels around the sun. The sun together with its planets, travels in the Milky Way(银河), our galaxy(星系). The Milky ...