The spectral evolution of nebular phase from Nova V5667 Sgr
The spectral evolution of nebular phase from Nova V5667 Sgr
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Nova V5667 Sgr 星云相的光谱演化
DOI：
10.1088/1742-6596/771/1/012054
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Arai
中科院分区：
文献类型：
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作者：
R. Muztaba;H. L. Malasan;A. Arai
2015年6月12日、6月23日和8月15日，利用安装在印度尼西亚伦邦博沙天文台C-11望远镜上的NEO-R1000光谱仪观测到了Nova V5668SGR的光谱演化。观测到的光谱表明，这颗新星已经进入星云阶段。这一阶段的光谱显示出[OI]λ6300,6364，[O II]λ7320和[O III]λ5007，[N II]λ5755的强禁带。光谱还显示了Fe IIλ4924,5169,5317,6149的发射线。我们将Nova V5668 SGR归入Fe II类型。根据新星V5668SGR的演化阶段，给出并讨论了其星云丰度N(X)/N(H)的变化。
The spectral evolution of the Nova V5668 Sgr has been observed on 12 June, 23 June, and 15 August 2015 using NEO-R1000 spectrograph attached to the C-11 telescope at Bosscha Observatory, Lembang, Indonesia. The observed spectra indicate that the nova has been entering the nebular phase. The spectra during this phase showed strong forbidden lines of [OI] λ6300, 6364,[O II] λ7320, and [O III] λ5007,[N II] λ5755. The spectra also showed emission line of Fe II λ4924, 5169, 5317, 6149. We classify Nova V5668 Sgr into the Fe II type. We present and discuss the variation of nebular abundance N (X)/N (H) of the Nova V5668 Sgr in the light of its evolutionary stages.