{"id":122577,"date":"2019-06-12T22:30:16","date_gmt":"2019-06-12T22:30:16","guid":{"rendered":"https:\/\/www.bnreport.com\/astronomers-may-have-spotted-the-ghost-galaxy-that-hit-the-milky-way-long-ago\/"},"modified":"2019-06-12T22:30:16","modified_gmt":"2019-06-12T22:30:16","slug":"astronomers-may-have-spotted-the-ghost-galaxy-that-hit-the-milky-way-long-ago","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/astronomers-may-have-spotted-the-ghost-galaxy-that-hit-the-milky-way-long-ago\/","title":{"rendered":"Astronomers may have spotted the ghost galaxy that hit the Milky Way long ago"},"content":{"rendered":"

The Milky Way survived a galactic hit and run millions of years ago \u2014 and astronomers may have finally found the culprit.<\/p>\n

Ten years ago, astrophysicists Sukanya Chakrabarti and Leo Blitz of the University of California, Berkeley, suggested that ripples in the outer gas disk of the Milky Way<\/a> were caused by a collision with a dwarf galaxy that shook the Milky Ways gas like a pebble dropped in a pond. The pair made predictions for how massive and distant the galaxy had to be, as well as roughly where it should be found. But none of the known dwarf galaxies that orbit the Milky Way<\/a> fit the bill (SN: 4\/4\/15, p. 6).<\/p>\n

Now, Chakrabarti thinks shes found her quarry, she reported June 12 in St. Louis at the American Astronomical Society meeting<\/a> and in a study posted on arXiv.org<\/a>.<\/p>\n

Last year, astronomers using data from the Gaia space telescope<\/a> discovered a new dwarf galaxy called Antlia 2, which has so few visible stars that its discoverers called it a hidden giant<\/a> (SN Online: 5\/9\/18). Antlia 2s location is \u201cstupidly close\u201d to where Chakrabarti, now at the Rochester Institute of Technology in N.Y., and Blitz predicted that the offending dwarf galaxy should be today, sheRead More \u2013 Source<\/strong><\/a>
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science news<\/a><\/h5>\n

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The Milky Way survived a galactic hit and run millions of years ago \u2014 and astronomers may have final..<\/p>\n","protected":false},"author":1,"featured_media":122578,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-122577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"\nAstronomers may have spotted the ghost galaxy that hit the Milky Way long ago - Business News Report<\/title>\n<meta name=\"description\" content=\"The Milky Way survived a galactic hit and run millions of years ago \u2014 and astronomers may have final..\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bnreport.com\/en\/astronomers-may-have-spotted-the-ghost-galaxy-that-hit-the-milky-way-long-ago\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astronomers may have spotted the ghost galaxy that hit the Milky Way long ago - 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