{ "id": "1912.08611", "version": "v1", "published": "2019-12-18T13:52:53.000Z", "updated": "2019-12-18T13:52:53.000Z", "title": "Coordinated observations between China and Europe to follow active region 12709", "authors": [ "S. J. González Manrique", "C. Kuckein", "P. Gömöry", "S. Yuan", "Z. Xu", "J. Rybák", "H. Balthasar", "P. Schwartz" ], "comment": "4 pages, 3 figures, to appear in the proceedings of IAUS 354", "categories": [ "astro-ph.SR" ], "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 \\r{A} 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$\\alpha$ 6562 \\r{A}. 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$\\alpha$ 6562 \\r{A}. 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.", "revisions": [ { "version": "v1", "updated": "2019-12-18T13:52:53.000Z" } ], "analyses": { "keywords": [ "active region", "coordinated observations", "multi-channel high resolution imaging system", "tight polarity inversion line", "fuxian solar observatory" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }