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Blue straggler - Wikipedia, the free encyclopedia
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For the first time, astronomers have confirmed that a blue straggler in the core of a globular cluster (a very dense community of stars) is a massive, rapidly rotating star that is spinning 75 times faster than the Sun. This finding provides proof that blue stragglers are created by collisions or other intimate...
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"This is an extremely exciting result," Saffer said, "because it may help distinguish between competing theories of blue straggler star formation and evolution.
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For almost 50 years, astronomers have puzzled over the youthful appearance of stars known as blue stragglers. ... An artist's time series shows two stars colliding to form a blue straggler star. The two stars begin in the top left of the image on a collision course, perhaps as a result of a gravitational dance with a third...
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Blue stragglers like BSS 19, however, can also form from the slow coalescence of contact binary stars, or of a star and brown dwarf. ...
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Messier 30, from HST's Advanced Camera for Surveys. Credit: NASA, ESA and Francesco Ferraro (University of Bologna Blue stragglers are stars that stay on ... A team of astronomers used data from the Hubble Space Telescope to study the blue straggler star content in Messier 30, a swarm of several hundred thousand stars...
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Blue straggler star. A star that is a member of a stellar association and is located at an unusual position on the association's color-magnitude diagram, ...
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Stellar collisions and vampirism give blue straggler stars a 'cosmic facelift' - Washington, December 24 : A new study has shown that stars known as blue stragglers have been rejuvenated by a sort of 'cosmic facelift', courtesy stellar collisions and a process sometimes called vampirism. ... In such a pair, ... Best Of NewKerala...
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HUBBLE CATCHES UP WITH A BLUE STRAGGLER STAR ... Astronomers studied a blue straggler in the tumultuous heart of the nearby globular cluster 47 Tucanae (47 Tuc), ... "This is an extremely exciting result," Saffer said, "because it may help distinguish between competing theories of blue straggler star formation and evolution."
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Composite of Hubble Space Telescope images of globular cluster 47 Tucanae, which contains many blue stragglers (seen here as blue dots within yellow circles) ; ... One Astronomer's Universe | A Bad Day in the Milky Way; Catalogue of the Cosmos | Tour the Spectrum; Resources | Transcript | Site Map | Death Star Home;
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