从光到声：耀发新星V612 Scuti的光谱演化与声化处理
From Light to Sound: Spectroscopic Evolution & Sonification of the flaring Nova V612 Scuti
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中文总结 AI 辅助
研究2017年银河系新星V612 Sct的测光与光谱观测，发现其耀发伴随高速吸收系统出现，建立测光耀发与光谱转变的关联，通过声化处理呈现演化，支持反复抛射与激波驱动极大值的结论。
中文摘要 AI 辅助
我们呈现了2017年银河系新星V612 Sct的测光与光谱观测结果，其光学演化特征为多个异常大的极大值。该爆发包含两次持续约一个月、振幅约2.5等的显著耀发，随后是一系列较小的耀发。广泛的光谱监测揭示了一个显著模式：每次耀发都会出现新的吸收系统，且其速度逐渐升高。这种行为在其他耀发新星中也有观测到，为以不断增加的速度发生的反复质量抛射或外流事件提供了证据。V612 Sct在爆发的不同阶段还交替出现Fe II和He/N光谱阶段，建立了测光耀发与主要光谱转变之间的明确关联。我们呈现了二维动态光谱，其直接追踪了与光变曲线耀发同期出现的新吸收特征。我们还引入了该光谱序列的声化处理，为爆发的时间演化提供了另一种呈现方式。这些结果支持这样一种图景：反复的抛射事件与激波形成在驱动耀发新星中观测到的多个极大值方面发挥核心作用。
英文摘要
We present photometric and spectroscopic observations of the 2017 Galactic nova V612 Sct, whose optical evolution was marked by multiple unusually large maxima. The eruption included two prominent flares lasting around a month each and reaching amplitudes of about 2.5 mag, followed by a series of smaller flares. Extensive spectroscopic monitoring reveals a striking pattern: with each flare, new absorption systems emerge at progressively higher velocities. This behavior, also seen in other flaring novae, provides evidence for repeated episodes of mass ejection or outflow at increasing velocities. V612 Sct also alternated between Fe II and He/N spectral phases during different stages of the eruption, establishing a clear connection between the photometric flares and major spectral transitions. We present two-dimensional dynamic spectra that directly trace the appearance of new absorption features contemporaneous with the light-curve flares. We also introduce a sonification of the spectroscopic sequence, offering an alternative representation of the temporal evolution of the eruption. These results support a picture in which repeated ejection episodes and shock formation play a central role in powering the multiple maxima observed in flaring novae.
