论文标题
亚毫米级中的Betelgeuse Fainter也是：在最近的光学最小值期间对JCMT和APEX监视的分析
Betelgeuse fainter in the sub-millimetre too: an analysis of JCMT and APEX monitoring during the recent optical minimum
论文作者
论文摘要
Betelgeuse是最近的红色超级恒星，在其最新的脉动周期中，它在光波长处进行了异常深的最小值。我们介绍了詹姆斯·克莱克·麦克斯韦（James Clerk Maxwell）望远镜和阿塔卡玛（Atacama）探路者实验在13年的时间跨度，包括光学调光（Optical Dimming）进行的亚亚略列观测。我们发现，在此光学最小值期间，在这些较长的波长下，Betelgeuse也使\ sim20 \％变暗。使用辐射转移模型，我们表明这可能是由于文献中先前建议的，而不是周围灰尘的光球（光度）变化。
Betelgeuse is the nearest Red Supergiant star and it underwent an unusually deep minimum at optical wavelengths during its most recent pulsation cycle. We present submillimetre observations taken by the James Clerk Maxwell Telescope and Atacama Pathfinder Experiment over a time span of 13 years including the optical dimming. We find that Betelgeuse has also dimmed by \sim20\% at these longer wavelengths during this optical minimum. Using radiative-transfer models, we show that this is likely due to changes in the photosphere (luminosity) of the star as opposed to the surrounding dust as was previously suggested in the literature.
