NUV to NIR photometry of type IIP ASASSN-16at
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We report distinctly double-peaked H{alpha} and H{beta} emission lines in the late-time, nebular-phase spectra (>~200 days) of the otherwise normal at early phases (<~100...
本研究报道,在早期阶段(观测时标小于约100天)表现为常规天体的样本,其晚期星云相光谱(观测时标大于约200天)中存在清晰双峰结构的Hα(H-alpha)与Hβ(H-beta)发射线



