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...
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 ...
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 ...
The nature of Fermi bubbles is still unclear, but the location of these objects indicates their connection to past or present activity in the center of the galaxy, where a central black hole of 106solar masses is believed to be located. Modern models relate the bubbles to star formation and/...
We demonstrate a very general mathematical and physical expression of the rotation speed at the end of the galaxy (far from the vast majority of the galaxy’s baryonic mass) obtained from General Relativity without non-baryonic matter. We show the excell
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...
Most of the mass of the milky way exists in the form of ___. Does Gravity exists in space yes or no, explain your answer. Why is the name "Milky Way" appropriate for our galaxy? What property of a globular cluster enables us to determine the age of the globular ...
—Douglas Adams,The Hitchhiker's Guide to the Galaxy This is another comic with aFact, the second in a row of these fact comics to use an Astronomy fact. Our best approximation of the number ofgalaxiesin theobservable universeis about 200 billion (2 × 1011). That's a lot of galaxies...
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 Way has more than 200 billion stars,...
“Avoiding this mass transfer episode as we suggest hints that there is a radio-quiet population of such systems in the Milky Way.” Reference: “Fallback Supernova Assembly of Heavy Binary Neutron Stars and Light Black Hole–Neutron Star Pairs and the Common Stellar Ancestry of GW190425 and ...