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 shape. Finally, there are the irregular galaxies whose shape fits in neither the spiral nor the elliptical ...
What are elliptical galaxies made of? What is the nebular hypothesis of planet formation? When was the heliocentric model accepted? Why is the Sun fourth in the Ptolemaic planetary system? What is the standard unit of period in astrophysics?
What are we missing in elliptical galaxiesJeremy MouldMatthew CollessLachlan CampbellHeath JonesJohn Lucey
By using the Doppler shift of the emission from CO molecules, astronomers can measure the velocities of clouds, and ALMA makes it possible to resolve the very centers of galaxies where the orbital speeds are highest. “Our team has been surveying nearby elliptical galaxies with ALMA for several ...
An irregular cluster might appear to be lopsided, asymmetrical, with a little concentration of galaxies in the center. 一个不规则的星团可能出现不平衡,不对称,只有少量星系集中在中间的情况。 Student: You are talking about the shape of the cluster though, not the shape of the galaxies within the...
distances,however,billions of other galaxies are scattered.These galaxies are of many shapes and sizes.The Milky Way Galaxy is shaped like a spiral(螺旋型)disk.Other galaxies have been found to be shaped like spirals,too.In addition,still other galaxies are elliptical or irregular in shape. ...
We particularly investigate the effects of the star formation process, the supernova feedback and the UV background on the formation and evolution of elliptical galaxies. It is suggested by observation that the colour-magnitude relation reflects the metallicity-luminosity relation of galaxies, and ...
galaxies : activegalaxies : elliptical and lenticular, cDgalaxies : 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....
Among the biggest cosmic structures we can see are galaxies, which essentially are vast collections of stars. Our own galaxy is called theMilky Way, and is considered a "barred spiral" shape. There are several types of galaxies, ranging from spiral to elliptical to irregular, and they can ch...
What is the shape of the Magellanic Clouds? What gave the galaxy its distorted shape according to the Hubble Telescope? How big is a spiral galaxy? What type of star is Deneb? What are elliptical galaxies made of? What are dwarf galaxies?