2016年WW Vul一次深Algol型极小值的测光与光谱分析
Photometry and spectroscopy of a deep Algol-like minimum of WW Vul in 2016
AI总结：
本文分析了前主序星WW Vul在2016年深Algol型极小值期间的测光与光谱数据，发现星周物质吸收导致显著变红，且去红化后光谱型保持A3V，Hα发射下降约30%、FWHM减少约15%。
摘要：
我们报告了对前主序星WW Vul在2016年7月和8月一次深Algol型极小值的测光与光谱分析。这揭示了由星周物质吸收导致的显著变红。经去红化处理，事件期间WW Vul的光谱始终与A3V光谱型一致。WW Vul的Hα通常处于发射状态。在极小值期间，Hα发射下降了约30%，Hα谱线的FWHM减少了约15%。
英文摘要：
We report analysis of photometry and spectroscopy of a deep Algol-like minimum of the pre-main-sequence star WW Vul in July and August 2016. This revealed substantial reddening due to absorption by circumstellar material. After dereddening, our spectra of WW Vul were consistent with spectral type A3V throughout the event. Hα is normally in emission in WW Vul. During the minimum, Hα emission dropped by ~30% and FWHM of the Hα line reduced by ~15%.
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