The mass of Dark Matter in the Milky Way Galaxy is roughly;The recommended time to answer this question is 2.5 minutes.Soru 22Yanıtten times the total mass of the Stars.hundred times the total mass of the Stars.one tenth of the total mass of the Stars.one percent of the total mass of the Stars.one thousandth of the total mass of the Stars.

Which of the following indicates dark matter in a galaxy?The recommended time to answer this question is 2.5 minutes.Soru 25YanıtMost stars orbiting the galactic center have similar velocities.The galaxy is brighter than expected.The presence of a bar-like structure in the bulge of the galaxy.The diameter of the disk of the galaxy increases over time.The stars in certain regions of the galaxy appear fainter than they should be.

Most of the mass of the Milky Way seems to exist in the form ofGroup of answer choicespopulation II stars in the Halo.the black hole in the Galactic Center.hydrogen gas in the disk and spiral arms.dark matter out in the Halo.population I stars in the disk.

The mass of galaxies has been found by*1 pointCounting the stars it containsDetermining the gravitational force and speed of rotationEstimating the number of interstellar clouds it containsPut it on a triple beam balance and estimate to one decimal point beyond the smallest markingThere is no way to determine the mass of a galaxy... it is too big

Which of the following information about gas and dust in the Milky Way Galaxy is incorrect?The recommended time to answer this question is 2.5 minutes.Soru 4YanıtDust grains typically have a diameter of 1 cm - 10 cm.Atomic gas is mostly composed of hydrogen, some helium and a small amount of other elements.Some cold and dense gas clouds may have a molecular structure.Due to the size of the dust grains, the images of the objects behind the dust may darken slightly.Dust grains mainly contain carbon, oxygen and silicon as well as the other elements.

Our Sun is one star among billions of stars in the Milky Way. However, it is difficult to determinethe exact number of stars. By observing the nearby stars around us, you find that the local den-sity of stars is 0.05 stars/(light-year)3. For simplicity, assume that the Milky Way has a cylindricalshape with a diameter of 100,000 light-years and a thickness of 1,000 light-years.Use this information to estimate the total number of stars in the Milky Way