X-ray observations by Suzaku Observatory provides the clearest picture to date of the size, mass and chemical content of a nearby galaxy cluster. The study also provides the first direct evidence that there are clouds at temperatures of millions of degrees that are squeezed into the outer regions of the cluster. Suzaku
Agency belongs to the Japan Aerospace Exploration Agency (JAXA), with contributions from NASA and participation of the international scientific community. The discovery was published in Science magazine in its edition today.
clusters of galaxies have sizes of millions of light years, and most stop normal matter content is in the form of hot gas emitting X-rays and fills the space between galaxies.
"Understanding the content of normal matter in galaxy clusters is a key to use these objects in the study of the evolution of the universe," says Adam Mantz, co-author.
Suzaku issue explored weak X-ray hot gas through two stretches of the Perseus Galaxy Cluster. The images, recorded X-rays with energies between 700 and 7,000 volts of electrons in a combined exposure of three days, two bands are shown in false color. blue colors indicate X-ray emission of lower intensity. The dashed circle is 11.6 billion light years across and marks the virial radio call, where the cold gas is now entering the cluster. Red circles indicate X-ray sources not associated with the group. Box: An image of the bright central region of the cluster taken by NASA's Chandra X-ray Observatory is shown to scale. (Credits NASA / ISAS / DSS / A Simionescu and others, insert: ... NASA / CXC / A Fabian et al.)
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SOURCE
3Asuzaku http://observatori.uv.es/index.php?option=com_content&view=article&id=1886% -presents-the-image-more-clear-of-cluster-of-galaxy-of-Perseus & catid = 52% 3Anoticosmos & Itemid = 74 & lang = en
