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[nova] Nova Sgr 2011: spectral development

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We found that intriguing features in spectra of V5587 Sgr (Nova Sgr 2011).  It showed a re-growth of absorption components in P-Cygni profiles for H-beta and other lines on 21 Feb. These features are often observed when rebrightening events of classical novae (Tanaka+2010). We continue observations of this object.

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2022/05

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