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Galaxy rotation curve - Wikipedia


The rotation curve of a disc galaxy is a plot of the orbital speeds of visible stars or gas in that ... The rotational/orbital speeds of galaxies/stars do not follow the rules found in ... constants...

Astronomy 123 Test 2 November 18, 2011 Name


Nov 18, 2011 ... 6) In a lobe radio galaxy, the ultimate energy source for the entire galaxy is thought ... 8) Why are supermassive galaxies often found at the cores of rich galaxy clusters? ... B) Many globular clusters swarmed together to form it.

Cosmic Evolution - Epoch 2 - Galactic Evolution


We observe loose and tight spiral galaxies having mixtures of old and new stars, large .... explaining why the big ellipticals reside near the core of galaxy clusters and the ... Such cannibalism may also explain why supermassive galaxies— those ... like our Milky Way—are often found near the centers of rich galaxy clusters.

Chapter 15 | SixDay Science


Also, large-scale structure is covered (galaxy clusters and collisions and ... The distances between galaxies are large and are often measured in megaparsecs. ..... When Hubble plotted the redshift vs. the distance of the galaxies, he found a ...... Our galaxy harbors a supermassive black hole in its core that has a mass of ...

Chapter 24, Section 4


The seeds of galaxy formation were sown in the very early universe when .... why supermassive galaxies are often found at the cores of rich galaxy clusters.

Supermassive black hole found in an unlikely place – Astronomy Now


Apr 7, 2016 ... The newly discovered black hole is in a galaxy, NGC 1600, in the opposite ... “ Rich groups of galaxies like the Coma Cluster are very, very rare, but ... These black holes would likely sink to the core of the new and larger galaxy and, after .... This result provides insight into how often galaxies merge and how ...

NASA's Chandra Weighs Most Massive Galaxy Cluster in Distant ...


A newly discovered galaxy cluster is the most massive one ever detected with ... bright core, or nucleus, powered by material falling toward a supermassive black hole. .... Some of the feline features are actually distant galaxies whose light has .... In Hollywood blockbusters, explosions are often among the stars of the show.

What are elliptical galaxies? | Space | EarthSky


Dec 5, 2012 ... Elliptical galaxies are among the largest single star systems in the universe and ... Within their uniform halos, ellipticals show a rich and complex history tracing ... Sitting at the core of the cluster is a massive elliptical galaxy—NGC ... Deep in the centers, ellipticals each contain a supermassive black hole.

Elliptical Galaxies - Caltech Astronomy


Mar 2, 2006 ... in the denser regions of the universe, from rich clusters to small groups ... by the bright elliptical galaxy NGC 4874, which is surrounded ... cores, where we often find separate components, even ..... as 'D-type' galaxies, often found in the centers of rich ... A good review of the evidence for supermassive bla...

Hot Gas In and Around Elliptical Galaxies - W.G. Mathews & F ... - NED


Later, many ellipticals and their groups merged into massive galaxy clusters. ... big elliptical galaxies are often found near the centers of groups and rich clusters. ... associated with a supermassive black hole in the core of the central elliptical.