All of the billions of galaxies in our universe can be broken down into three main categories of galaxies. First there are the spiral galaxies, like our Milky Way, that have spiral arms jutting out from a central bulge. Then there are the elliptical galaxies that have a uniform ellipsoid ...
What are we missing in elliptical galaxiesJeremy MouldMatthew CollessLachlan CampbellHeath JonesJohn Lucey
What are galaxies made of? What are some physical characteristics of elliptical galaxies? What is space in astronomy? What does a elliptical galaxy look like? What is planetary migration? What is a planetoid? What is a protostar? Which galaxies have the greatest redshift?
Radio-loud galaxies can also be subdivded into categories like radio galaxies, quasars, and blazars. As the name suggests, radio galaxies are elliptical galaxies that are strong emitters of radiowaves. Quasars are the most luminous type of AGN, which have spectra similar to Seyferts. However,...
Some research suggests radio loudness may be connected to host galaxy type, with radio galaxies almost exclusively taking the form of giant elliptical galaxies. These galaxies could be created by the merger of two smaller galaxies. Radio emissions could also be connected to the rotation of the cen...
We examined the physical origin of the colour-magnitude relation of elliptical galaxies in clusters of galaxies in the hierarchical clustering scenario by using a semi-analytic model of galaxy formation. We particularly investigate the effects of the star formation process, the supernova feedback and...
the mechanism that powers them is similar. The evidence now shows that most—and probably all—elliptical galaxies and all spirals with nuclear bulges have black holes at their centers. The amount of energy emitted by material near the black hole depends on two things: the mass of the black...
Student: You are talking about the shape of the cluster though, not the shape of the galaxies within the cluster. Professor: Right. For example, let's consider the Coma Cluster. It's a symmetrical cluster basically spherical in shape, but the individual galaxies within it are elliptical. The...
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galaxies : nucleigalaxies : Seyfertradiation mechanisms : nonthermalradio continuum : galaxiesMany nearby early-type (elliptical and S0) galaxies contain weak (millijansky level) nuclear radio sources on scales of a few hundred parsecs or less. The origin of the radio emission, however, has ...