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Visible Emission Line Coronagraph on Aditya-L1

机译:Aditya-L1的可见排放线菌根

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Solar coronagraph mimics total solar eclipse by blocking the solar disk and enabling the observation of extended coronal atmosphere of the Sun. Visible Emission Line Coronagraph (VELC), on-board Aditya-L1 space mission, is an internally occulted solar coronagraph capable of simultaneous imaging, spectroscopy and spectro-polarimetry close to the solar limb. This payload is designed to study the coronal plasma and heating of the solar corona. Studying development, dynamics and origin of coronal mass ejections and measurement of coronal magnetic fields over active regions are other important science goals. VELC is designed to image the solar corona at 500 nm with an angular resolution of 5 '' over a field of view (FOV) of 1.05-3 R-o. It also facilitates simultaneous multi-slit spectroscopy at three emission lines, viz. Fe XIV (530.3 nm), Fe XI (789.2 nm) and Fe XIII (1074.7 nm) with a spectral resolution of 28, 31 and 202 m angstrom/pixel respectively, over an FOV of 1.05-1.5 R-o. The payload has a dual-beam spectro-polarimetry channel for magnetic field measurements at 1074.7 nm.
机译:太阳能调度件通过阻挡太阳能盘,使太阳能磁盘的观察到太阳的扩展冠气氛来模仿总日食。可见排放线调节(VELC),载于Aditya-L1空间任务,是一种内隐星太阳能调度,能够同时成像,光谱学和光谱 - 偏振谱靠近太阳肢体。本有效载荷旨在研究太阳能电晕的冠状等离子体和加热。在活跃地区研究发展,动力学和冠状磁场测量的冠状磁场的测量是其他重要的科学目标。 Velc设计用于在500nm处将太阳能电晕,角度分辨率为1.05-3 R-O的视野(FOV)。它还促进了三条排放线的同时多狭光谱,Viz。 FE XIV(530.3nm),Fe Xi(789.2nm)和Fe XIII(1074.7nm)分别具有28,31和202M埃/像素的光谱分辨率,在1.05-1.5的R-O的FOV上。有效载荷具有双光束光谱 - 偏振频道,用于1074.7nm的磁场测量。

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