Nature Astronomy 1, 0141 (2017); published 26 May 2017; corrected 19 June 2017 In the version of this Letter originally published, the author's name in ref. 11 was incorrect and… Click to show full abstract
Nature Astronomy 1, 0141 (2017); published 26 May 2017; corrected 19 June 2017 In the version of this Letter originally published, the author's name in ref. 11 was incorrect and should have read ‘Reid, I. N.’
               
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