Headlines > News > Picture of the Day - Dozens of Galaxies and hot gas in the Galaxy Cluster of MS0735

Picture of the Day - Dozens of Galaxies and hot gas in the Galaxy Cluster of MS0735

Published by Elina on Wed Oct 2, 2013 9:10 pm via: HubbleSite
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This is a composite image of galaxy cluster MS0735, located about 2.6 billion light-years away in the constellation Camelopardalis.

The image represents three views of the region that astronomers have combined into one photograph. The optical view of the galaxy cluster (seen as space objects in the background), taken by the Hubble Space Telescope’s Advanced Camera for Surveys in February 2006, shows dozens of galaxies bound together by gravity.

Diffuse, hot gas with a temperature of nearly 50 million degrees permeates the space between the galaxies. The gas emits X-rays, seen as blue in the image taken with the Chandra X-ray Observatory in November 2003. The X-ray portion of the image shows enormous holes or cavities in the gas, each roughly 640,000 light-years in diameter — nearly seven times the diameter of the Milky Way.

The cavities are filled with charged particles gyrating around magnetic field lines and emitting radio waves shown in the red portion of image taken with the Very Large Array telescope in New Mexico in October 2004. The cavities were created by jets of charged particles ejected at nearly light speed from a supermassive black hole weighing nearly a billion times the mass of our Sun lurking in the nucleus of the bright central galaxy. The jets displaced more than one trillion solar masses worth of gas. The power required to displace the gas exceeded the power output of the Sun by nearly ten trillion times in the past 100 million years.

Dozens of galaxies with surrounding gas and X-ray radiation clouds. Credit: NASA, ESA, CXC, STScI, and B. McNamara (University of Waterloo), NRAO, and L. Birzan and team (Ohio University)

Dozens of galaxies with surrounding gas and X-ray radiation clouds. Credit: NASA, ESA, CXC, STScI, and B. McNamara (University of Waterloo), NRAO, and L. Birzan and team (Ohio University)

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