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Nova Cen 2013 or V1369 Cen (PNV J13544700-5909080) was a bright nova in the constellation Centaurus. It was discovered on December 2, 2013 by amateur astronomer John Seach in Australia with coordinates RA and Dec and unfiltered magnitude 5.5. On December 14, 2013 it peaked at about magnitude 3.3〔IAU Circ., 9266, 2 (2013). Edited by Green, D. W. E.〕 being the brightest nova of this millennium. Nova Centauri 2013 was observed emitting gamma-rays between 7–10 December 2013 by the Fermi Gamma-ray Space Telescope.〔Astronomer's Telegram #5649〕 The nova continued to brighten in gamma-rays and the peak coincided with the second optical maximum on 11 December 2013.〔Astronomer's Telegram #5653〕 The Swift Gamma-Ray Burst Mission detected X-ray emission from Nova Centauri 2013 on 18 and 25 February 2014 and 8 March 2014.〔Astronomer's Telegram #5966〕 In July 2015 it was announced that the element lithium has been detected in material ejected from Nova Centauri 2013. This is the first time lithium has been detected in a nova system. The amount detected was less than a billionth of the mass of the Sun.〔 This finding is significant because it confirms a theory that the extra lithium found in Population I stars (compared to Population II stars) comes from novae.〔 ==See also== * List of novae in the Milky Way galaxy * Nova Delphini 2013 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nova Centauri 2013」の詳細全文を読む スポンサード リンク
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