News tagged with cluster of galaxies

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Enriching the intracluster medium

(PhysOrg.com) -- Galaxies are sometimes found in large clusters with many hundreds of members. Typically there is a giant elliptical galaxy near the center; most of these ellipticals are very bright emitters of radio radiation ...

dateMar 22, 2011 in Astronomy
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Planck detects new supercluster of galaxies

Surveying the microwave sky, Planck has obtained its very first images of galaxy clusters, amongst the largest objects in the Universe, by means of the Sunyaev-Zel'dovich effect, a characteristic signature they imprint on ...

dateSep 16, 2010 in Astronomy
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Scientists get a look at the birth of the Milky Way

(PhysOrg.com) -- For the first time, a team of astronomers has succeeded in investigating the earliest phases of the evolutionary history of our home Galaxy, the Milky Way. The scientists, from the Argelander Institute for ...

dateJun 21, 2010 in Astronomy
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Alien invaders pack the Milky Way

(PhysOrg.com) -- Around a quarter of the globular star clusters in our Milky Way are invaders from other galaxies, new research from Swinburne University of Technology (Australia) shows.

dateFeb 23, 2010 in Astronomy
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Giant galaxy Messier 87 finally sized up

The new observations reveal that Messier 87's halo of stars has been cut short, with a diameter of about a million light-years, significantly smaller than expected, despite being about three times the extent of the halo ...

dateMay 20, 2009 in Astronomy
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