The disk of the galaxy is mostly made of
WebGalaxies come in a variety of shapes, mostly spirals and ellipticals, as well as those with less orderly appearances, usually dubbed irregular. Most galaxies are between 10 billion and … WebApr 17, 2024 · Galaxies—facts and information. 1 / 12. A composite image of the Messier 81 (M81) galaxy shows what astronomers call a "grand design" spiral galaxy, where each of …
The disk of the galaxy is mostly made of
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WebAug 14, 2024 · And the heavier elements made inside stars ends up in the interstellar medium via supernova explosions. So, these old stars are expected to lack metals. In other words, Population II stars... WebAncient, very metal-poor (VMP) stars offer a window into the earliest epochs of galaxy formation and assembly. We combine data from the H3 Spectroscopic Survey and Gaia to measure metallicities, abundances of α elements, stellar ages, and orbital properties of a sample of 482 VMP ([Fe/H] < -2) stars in order to constrain their origins.
WebPhysics questions and answers. 3%) Problem 10: How are globular clusters distributed in our Milky Way Galaxy? Please select the best choice from the available options. O only in the very center of the Galaxy, really crowded together O only in the main spiral disk of the galaxy mostly in a large spherical halo (or cloud) surrounding the flat ... WebThis structure can be viewed as consisting of six separate parts: (1) a nucleus, (2) a central bulge, (3) a disk (both a thin and a thick disk), (4) spiral arms, (5) a spherical component, …
WebAnd just as our Earth is composed of a myriad of materials that are unique to Earth, each galaxy is composed of a mix of gas, dust, and stars that are unique to that galaxy. All these things are held together by gravitational forces. WebStarts in the disk of the galaxy are mostly old, metal-poor Population II starts True or False False The 21-cm emission is used mainly to map out globular clusters around the Galaxy …
WebNov 19, 2024 · The disk of stars orbiting the bulge separates into arms that circle the galaxy. These spiral arms contain a wealth of gas and dust and younger stars that shine brightly …
WebMar 17, 2024 · James K. 105k 5 262 368. Add a comment. 7. Galaxies are disc shaped because they are gas rich and dynamically young. Stars are also gas rich but they are dynamically old so they have had time to rid themselves of their discs. Young protostars (which are dynamically young) are surrounded by proto-stellar discs. current issues facing the cruise industryWebThe disks of S0 galaxies, on the other hand, are composed almost entirely of stars (i.e. there is no gas or dust in the disk). Disk galaxies vary in size from dwarf galaxies with masses of only a billion solar masses , to large spiral or S0 galaxies with masses of 1,000 billion … Study Astronomy Online at Swinburne University All material is © Swinburne … Most of the mass-energy, about 95%, in the universe is ‘dark’. By dark we mean that it … The Galactic centre is the point about which our Galaxy is rotating. It is located … charlynn 103-1005WebApr 24, 2024 · The net result is, as a galaxy ages, its initial thin disk of stars starts to thicken—the middle-aged spread—and the galaxy becomes older, rounder and less squashed. Elliptical galaxy NGC... char-lynn 101 series specsWebApr 21, 2024 · A simulation of dark matter surrounding the Milky Way galaxy (small ring at center) and the Large Magellanic Cloud (LMC) reveals two areas of high density: the smaller of the two light blue areas is a wake created by the LMC’s motion through this region. The larger corresponds to an excess of stars in the Milky Way’s northern hemisphere. charlynn 103-1040WebMar 17, 2024 · The shape that achieves this is a disc. Any gas clouds that are not orbiting in the plane of the disc will hit it, and over time they will be pulled into the same disc. Gas … current issues in artWebFeb 7, 2008 · It's made of hot gas and possibly dark matter. All of these components orbit the nucleus and are held together by gravity. Because gravity depends upon mass, you might think that most of a galaxy's mass … char lynn 103 seriesWebJan 19, 2024 · The arms of the pinwheel are made up of stars and lots of gas and dust. Gas and dust are some of the main ingredients needed to form new stars. Young stars burn … current issues highlighted by bhf for obesity