Flows along arch filaments observed in the GRIS “very fast spectroscopic mode”

0485633 - ASÚ 2018 RIV GB eng C - Conference Paper (international conference)
Gonzalez Manrique, S. J. - Denker, C. - Kuckein, C. - Pastor Yabar, A. - Collados Vera, M. - Verma, M. - Balthasar, H. - Diercke, A. - Fischer, C.E. - Gömöry, P. - Bello González, N. - Schlichenmaier, R. - Cubas Armas, M. - Berkefeld, T. - Feller, A. - Hoch, S. - Hofmann, A. - Lagg, A. - Nicklas, H. - Orozco Suárez, D. - Schmidt, D. - Schmid, W. - Sigwarth, M. - Sobotka, Michal - Solanki, S.K. - Soltau, D. - Staude, J. - Strassmeier, K.G. - Volkmer, R. - von der Lühe, O. - Waldmann, T.A.
Flows along arch filaments observed in the GRIS “very fast spectroscopic mode”.
Fine Structure and Dynamics of the Solar Atmosphere. Cambridge: Cambridge University Press, 2017, s. 28-33. Proceedings of the International Astronomical Union, IAU S327. ISBN 9781107170049. ISSN 1743-9213.
[Symposium of the International Astronomical Union /327./. Cartagena de Indias (CO), 09.10.2016-13.10.2016]
R&D Projects: GA MŠMT(CZ) 7E13003
EU Projects: European Commission(XE) 312495 - SOLARNET
Institutional support: RVO:67985815
Keywords : Sun * chromosphere * photosphere
OECD category: Astronomy (including astrophysics,space science)

A new generation of solar instruments provides improved spectral, spatial, and temporal resolution, thus facilitating a better understanding of dynamic processes on the Sun. High-resolution observations often reveal multiple-component spectral line profiles, which provides information about the chromospheric velocity and magnetic fine structure. We observed an emerging flux region, including two small pores and an arch filament system, on 2015 April 17 with the “very fast spectroscopic mode” of the GREGOR Infrared Spectrograph (GRIS) situated at the 1.5-meter GREGOR solar telescope at Observatorio del Teide, Tenerife, Spain. We discuss this method of obtaining fast (one per minute) spectral scans of the solar surface and its potential to follow dynamic processes on the Sun. We demonstrate the performance of the “very fast spectroscopic mode” by tracking chromospheric high-velocity features in the arch filament system.
Permanent Link: http://hdl.handle.net/11104/0280591