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News Release Archive:

News Release 47 of 121

November 2, 2006 01:00 PM (EST)

News Release Number: STScI-2006-51

Host Galaxy Cluster to Largest Known Radio Eruption

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Image: Galaxy Cluster MS 0735

Galaxy Cluster MS 0735STScI-PRC2006-51

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ABOUT THIS IMAGE:

This is a composite image of galaxy cluster MS0735.6+7421, 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, 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.

Object Name: MS 0735.6+7421

Image Type: Astronomical/Illustration

Hubble and Chandra Image Credit: NASA, ESA, CXC, STScI, and B. McNamara (University of Waterloo)

Very Large Array Telescope Image Credit: NRAO, and L. Birzan and team (Ohio University)

NEWS RELEASE IMAGES

The above montage includes these images:

Composite Image of Galaxy Cluster MS 0735 Image Type: Astronomical Composite Image of Galaxy Cluster MS 0735 X-ray Image of Galaxy Cluster MS 0735 Image Type: Astronomical X-ray Image of Galaxy Cluster MS 0735 Visible-Light Image of Galaxy Cluster MS 0735 Image Type: Astronomical Visible-Light Image of Galaxy Cluster MS 0735 Radio Image of Galaxy Cluster MS 0735 Image Type: Astronomical Radio Image of Galaxy Cluster MS 0735

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