What Is The Difference Between Type 1 And Type 2 Seyfert Galaxies Quizlet? Seyfert type 1 galaxies are AGNs with the accretion disk tipped slightly from face-on. Seyfert type 2 galaxies are AGN accretion disks with an edge-on view. … The gas in the disk is orbiting at high speeds and short-duration fluctuations in brightness
Which Galaxy Has Arms Of Gas And Dust Sprial Galaxy Galaxy Galaxy Galaxy Irregular Galaxy Bar Galaxy? Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way. The disk of stars orbiting the bulge separates into arms that circle the galaxy. These spiral arms contain a wealth
Do Elliptical Galaxies Have O And B Stars? Ellipticals contain neither interstellar dust nor bright stars of spectral types O and B. Many, however, contain evidence of the presence of low-density gas in their nuclear regions. How are the stars distributed in an elliptical galaxy? Unlike flat spiral galaxies with organization and structure, elliptical galaxies
What Is The Major Difference Between Elliptical Galaxies And Spiral Galaxies? While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren’t nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born. What’s the difference between spiral
Why Do We Think That Quasars Are Extremely Distant Quizlet? Why are most quasars so far away? There is a greater volume of the universe that is far away than is nearby and quasars were more abundant in the past when galaxies were close together. This image shows four quasars around a galaxy. The redshift
Can An Elliptical Galaxy Evolve Into A Spiral Can A Spiral Turn Into An Elliptical How? We know this because spiral galaxies rotate quickly (on an astronomical scale), while elliptical galaxies do not. There is no way that an elliptical galaxy could spontaneously begin rotating, so there is no way an elliptical galaxy could turn
Where Does The Spiral Arms Lie? All spiral arms lie within the thin disk of the galaxy. They are delineated by dark dust lanes and highlighted by young, blue stars and luminous nebulae. What is a spiral arm in astronomy? Spiral arms are regions of stars that extend from the center of spiral and barred
Where Does The Halo Of A Galaxy Expand From? The gas from halo mergers goes toward the formation of the central galactic components, while stars and dark matter remain in the galactic halo. On the other hand, the halo of the Milky Way Galaxy is thought to derive from the Gaia Sausage. Where is the
Which Phrase Describes An Irregular Galaxy Has A Round Shape? Answer: “Contains many young stars”. Does an irregular galaxy have a round shape? As their name suggests, elliptical galaxies are round or oval, with stars distributed fairly uniformly throughout. … The stars in ellipticals tend to be older. Irregular galaxies have no identifiable shape or
What Are The Common Galaxies? There are four main categories of galaxies: elliptical, spiral, barred spiral, and irregular. … The most common type of galaxy found throughout the universe is the spiral galaxy. Around 77% of the galaxies observed by man are spiral galaxies. A good example of this type is the Andromeda galaxy. What