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Pawel Warchal / 50 items

N 13 B 97 C 0 E May 9, 2019 F Nov 19, 2019
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N 119 B 1.1K C 2 E May 9, 2019 F Nov 19, 2019
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N 27 B 376 C 1 E Nov 19, 2019 F Nov 19, 2019
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Astronomers have confirmed the first example of a galaxy cluster where large numbers of stars are being born at its core. Using data from NASA space telescopes and a National Science Foundation radio observatory, researchers have gathered new details about how the most massive black holes in the universe affect their host galaxies.

Galaxy clusters are the largest structures in the cosmos that are held together by gravity, consisting of hundreds or thousands of galaxies embedded in hot gas, as well as invisible dark matter. The largest supermassive black holes known are in galaxies at the centers of these clusters.

For decades, astronomers have looked for galaxy clusters containing rich nurseries of stars in their central galaxies. Instead, they found powerful, giant black holes pumping out energy through jets of high-energy particles and keeping the gas too warm to form many stars.

Now, scientists have compelling evidence for a galaxy cluster where stars are forming at a furious rate, apparently linked to a less effective black hole in its center. In this unique cluster, the jets from the central black hole instead appear to be aiding in the formation of stars. Researchers used new data from NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and the NSF’s Karl Jansky Very Large Array (VLA) to build on previous observations of this cluster.

The black hole is in the center of a galaxy cluster called the Phoenix Cluster, located about 5.8 billion light years from Earth in the Phoenix Constellation. The large galaxy hosting the black hole is surrounded by hot gas with temperatures of millions of degrees. The mass of this gas, equivalent to trillions of Suns, is several times greater than the combined mass of all the galaxies in the cluster.

This year, NASA's Chandra X-ray Observatory celebrates its 20th year in space exploring the extreme universe.

Image credit: X-ray: NASA/CXC/SAO/G.Schellenberger et al.; Optical:SDSS

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More about Chandra's 20th Anniversary

More about the Chandra X-ray Observatory

NASA Media Usage Guidelines

Tags:   NASA NASA's Marshall Space Flight Center NASA Marshall Marshall MSFC Chandra X-Ray Observatory CXO Solar System & Beyond astronomy astrophysics X-ray Hubble Space Telescope HST galaxy cluster black hole dark matter

N 102 B 1.4K C 0 E May 9, 2019 F Nov 19, 2019
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N 165 B 1.5K C 9 E Nov 18, 2019 F Nov 19, 2019
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Please follow the link to my other Flickr site if you wish www.flickr.com/photos/167278372@N02/
DC Rail Freight's latest acquisition, 60046 'William Wilberforce' powers the 6Z55 1210 Chaddesden Sdgs to Carlisle Kingmoor V.Q.(Nr) empty ballast boxes and she is about to pass the rather large gallery of photters at Breaston Fields Farm/Sawley/Long Eaton or Church Wilne Reservoir, whatever you prefer to call it.18/11/2019.

Tags:   # 60046 # William Wilberforce 6Z55 Chaddesden Sidings Carlisle Kingmoor Virtual Quarry Empty Ballast boxes Truck # Wagon Tug Brush Loughborough Breaston Fields Farm Sawley Long Eaton Church Wilne Reservoir Derbyshire # England # Europe Great Britain United Kingdom # Transport Outdoors Outside Tree Nature Landscape Vehicle Light Sony Mirrorless Full Frame Field Grass Day Autumn 2019 November Engine Locomotive British Freight Train DC Rail Freight Paul Manley Cappagh Devon and Cornwall Railways Art # Cloud Picture Digital Photography Camera Canon Grey Gray Yellow Blue Green Erewash Sky


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