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arXiv · 1912.08611

Coordinated observations between China and Europe to follow active region 12709

S. J. González Manrique·C. Kuckein·P. Gömöry·S. Yuan·Z. Xu·J. Rybák·H. Balthasar·P. Schwartz
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Abstract

We present the first images of a coordinated campaign to follow active region NOAA 12709 on 2018 May 13 as part of a joint effort between three observatories (China-Europe). The active region was close to disk center and enclosed a small pore, a tight polarity inversion line and a filament in the chromosphere. The active region was observed with the 1.5-meter GREGOR solar telescope on Tenerife (Spain) with spectropolarimetry using GRIS in the He I 10830 Å spectral range and with HiFI using two broad-band filter channels. In addition, the Lomnicky Stit Observatory (LSO, Slovakia) recorded the same active region with the new Solar Chromospheric Detector (SCD) in spectroscopic mode at H$α$ 6562 Å. The third ground-based telescope was located at the Fuxian Solar Observatory (China), where the active region was observed with the 1-meter New Vacuum Solar Telescope (NVST), using the Multi-Channel High Resolution Imaging System at H$α$ 6562 Å. Overlapping images of the active region from all three telescopes will be shown as well as preliminary Doppler line-of-sight (LOS) velocities. The potential of such observations are discussed.

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S. J. González Manrique, C. Kuckein, P. Gömöry, S. Yuan, Z. Xu, J. Rybák, H. Balthasar, P. Schwartz. 2019-12-18. Coordinated observations between China and Europe to follow active region 12709. https://doi.org/10.1017/s1743921320000101

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