2016年WW Vul的一个类似阿尔戈尔的深度极小值的光度测量和光谱学研究

arXiv - PHYS - Solar and Stellar Astrophysics Pub Date : 2024-09-16 DOI:arxiv-2409.10073

David Boyd

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摘要

我们报告了对2016年7月和8月前主序恒星WW Vul的一次深度类木卫一最小值的测光和光谱分析。去色后，我们得到的WW Vul光谱与整个事件中的光谱型A3V一致。在WW Vul中，H{alpha}通常处于发射状态。在其最小值期间，H{alpha}的发射下降了约30%，H{alpha}线的全宽降低了约15%。

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Photometry and spectroscopy of a deep Algol-like minimum of WW Vul in 2016

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. H{\alpha} is normally in emission in WW Vul. During the minimum, H{\alpha} emission dropped by ~30% and FWHM of the H{\alpha} line reduced by ~15%.

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arXiv - PHYS - Solar and Stellar Astrophysics

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