论文标题
第一个高分辨率干涉测量值与阿尔玛的太阳突出
First High Resolution Interferometric Observation of a Solar Prominence With ALMA
论文作者
论文摘要
我们使用高分辨率的ALMA的高分辨率干涉成像来提出对太阳突出性的首次观察，价格为84-116美元。来自Białkaw天文台和SDO/AIA的H $α$的同时观察结果显示出与Alma观察的类似的突出形态。显示3毫米和H $α$排放的贡献函数在一系列气体压力上具有显着的重叠。我们估计最大毫米含量的光学厚度为$τ_\ mathrm {3mm} \大约2 $，以及观察到的H $α$强度的亮度温度。 ALMA测量的亮度温度为$ \ sim 6000-7000 $ K，在突出脊柱中，这与气温为8000 K的估计亮度温度很好地相关。
We present the first observation of a solar prominence at $84-116$ GHz using the high resolution interferometric imaging of ALMA. Simultaneous observations in H$α$ from Białkaw Observatory and with SDO/AIA reveal similar prominence morphology to the ALMA observation. The contribution functions of 3 mm and H$α$ emission are shown to have significant overlap across a range of gas pressures. We estimate the maximum millimetre-continuum optical thickness to be $τ_\mathrm{3mm}\approx 2$, and the brightness temperature from the observed H$α$ intensity. The brightness temperature measured by ALMA is $\sim 6000-7000$ K in the prominence spine, which correlates well with the estimated brightness temperature for a gas temperature of 8000 K.
