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Globular cluster

en.wikipedia.org/wiki/Globular_cluster

A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. ... Globular clusters, which are found in the halo of a galaxy, contain .... in such a galaxy is oft...

Chapter 15, Section 4 - Castle Rock Schools

www.castlerock.wednet.edu/HS/stello/Astronomy/TEXT/CHAISSON/BG315/HTML/BG31504.htm

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.

Chapter 24, Section 4

astronomy.nju.edu.cn/~lixd/GA/AT4/AT424/HTML/AT42404.HTM

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.

Galaxy Formation and Evolution

astronomy.nju.edu.cn/~chenpf/astron/astron/at3/AT32404.HTM

Unfortunately, the theory of galaxy formation is still very much in its infancy, and no .... supermassive galaxies are often found at the cores of rich galaxy clusters.

Quiz on Galaxy Clusters and AGN

daisy.astro.umass.edu/~arny/jclus_agnquiz.html

Galaxies are often found in groups called clusters of galaxies. ... In rich galaxy clusters the most common kind of galaxy is elliptical, while in poor clusters and for galaxies not in clusters, spiral types dominate. 6. ... About 1% of all galaxies show signs of activity in their cores. 11. ... The explosion of a supermassive star. B)...

15 Years of Hubble | NASA

www.nasa.gov/multimedia/imagegallery/image_feature_314.html

Mar 23, 2008 ... They are usually found orbiting other larger galaxies such as our own, and are ... Like all galaxy clusters, the Perseus cluster is filled with hot gas .... In this gas-rich environment, star birth may have been triggered by gas ..... The galactic core of NGC 4845 is not just supermassive, but also super-hungry.

Chapter 15 | SixDay Science

sixdayscience.com/curriculum/textbooks/chapter-15/

Also, large-scale structure is covered (galaxy clusters and collisions and superclusters). ... The distances between galaxies are large and are often measured in megaparsecs. ... Messier 87: giant elliptical (E1) at the Virgo Cluster's core. .... When Hubble plotted the redshift vs. the distance of the galaxies, he found a ...

Stars influence the central distribution of dark matter in galaxy clusters

wwwmpa.mpa-garching.mpg.de/mpa/research/current_research/hl2014-11/hl2014-11-en.html

Some of the cluster galaxies (e.g. the bright elliptical galaxy one on the south- east ... would significantly affect the distribution of stars and dark matter in the BCG core. ... by the "universal" profile found in cosmological dark-matter-only simulations. ... suggest that it might explain the large stellar cores often obser...

On the Connection between Interaction between Galaxies and ...

www3.mpifr-bonn.mpg.de/staff/sfriedrichs/files/agn_seminar_30.06.pdf

provided overwhelming evidence for the presence of supermassive black holes in nearby active galaxies and for an association between galaxy interactions and AGN. ... rich disk galaxies collide – observational evidence: supersonically colliding gas ..... decoupled cores have been found now in a high fraction of ellipticals.

Multiple supermassive black holes in galactic bulges

mnras.oxfordjournals.org/content/336/3/L61.full

Nov 1, 2002 ... It is expected that stars will be ejected from galaxy cores as these low mass ratio binaries harden. ... Note that in the models, the mass accretion rate often exceeds the ... If two galaxies with roughly equal mass merge, a binary black hole ... If the supermassive black holes do indeed merge during gas-rich ...

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Chapter 25 & Chapter 26 Astronomy Test - ProProfs Quiz

www.proprofs.com

The best method of determining the mass of nearby spiral galaxies is by: A. ... Why are super-massive galaxies often found at the cores of rich galaxy clusters? A.

unit 13 - Astronomy 1040 with Carroll at Weber State University ...

www.studyblue.com

Apr 23, 2014 ... In the 18th century, who discovered galaxies during his search for new ___ .... large __ galaxies are found at the centers of groups and clusters of galaxies. ... If an elliptical captures a gas-rich system, the gas then becomes the __ of a "new" ... An active galaxy has at its core a supermassive __ that cont...

Cosmic Evolution - Epoch 2 - Galactic Evolution

www.cfa.harvard.edu

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.