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A Tour of il Gioiello Cluster

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Paths are the best way to keep exploring content you're interested in. We'll create a stream of content for you filled with the best videos related to “A Tour of il Gioiello Cluster”.

This galaxy cluster is officially known as XDCP J0044.0-2033. Perhaps not surprisingly, astronomers decided to give a nickname to this mouthful of a cluster name.
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Now researchers have direct evidence for just how that energy keeps the gas in the entire galaxy cluster so hot.
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This video shows the movement of blue straggler stars in globular clusters over time. Blue straggler stars are blue, bright stars, with a higher mass than the average for a cluster, and they are expected to sink towards the centre of a star cluster over time. Those closest to the cluster core are the first to migrate inwards, with more distant blue stragglers progressively moving inwards over time. A new study using the NASA/ESA Hubble Space Telescope and the MPG/ESO 2.2-metre telescope at the ESO La Silla Observatory has shown that not all globular clusters evolve at the same rate. While all globular clusters are old (over 10 billion years), the stellar distribution within some remains youthful, with the blue straggler stars spread throughout the cluster. Others have aged prematurely, with the stars all located in the centre. More information and download-options: http://www.spacetelescope.org/videos/heic1221a/ Credit: NASA, ESA, L. Calçada, F. Ferraro (University of Bologna)
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The NASA/ESA Hubble Space Telescope has observed many star clusters. As well as being scientifically interesting, these clusters produce stunning images, appearing like sparkling baubles in the sky. This episode of the Hubblecast looks at how Hubble has studied and imaged these beautiful objects, also introducing a striking new image of Messier 15, one of the oldest globular clusters in our skies. This is the best ever image of this cluster, which contains over 100 000 stars, a planetary nebula known as Pease 1 (otherwise named PN Ku 648 or Kürster 648), and something more exotic: at its core, it is thought to host a rare type of black hole. More information and download options: http://www.spacetelescope.org/videos/heic1321a/ Subscribe to our iTunes channel here: https://itunes.apple.com/gb/podcast/hubblecast-hd/id258935617 Credit: ESA/Hubble Directed by: Nicola Guttridge Visual design and editing: Martin Kornmesser Written by: Nicola Guttridge Narration: Sara Mendes da Costa Images: ESA/Hubble and NASA; View of the Milky Way: Nick Risinger (skysurvey.org)/ESO/MPE/VISTA/J. Emerson/Digitized Sky Survey 2 Animations: M. Kornmesser, L. Calçada, L. L. Christensen Music: Zero Project and ccMixter (ccmixter.org) Web and technical support: Mathias Andre and Raquel Yumi Shida Cinematography: Peter Rixner (www.perix.de) Executive producer: Lars Lindberg Christensen
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Astronomers have found an extraordinary galaxy cluster -- one of the largest objects in the Universe -- that is breaking several important cosmic records.
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This video shows an artist's animation of a globular cluster. Globular clusters are huge balls of old stars that orbit the centres of galaxies. Many of them were once little galaxies, cannibalised by their larger companions over the history of the Universe. More information and download options: http://www.spacetelescope.org/videos/heic1321c/ Credit: NASA, ESA, and M. Kornmesser
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A team of astronomers has used Chandra X-ray Observatory and XMM-Newton to study a large group of galaxy clusters with a surprising result.

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