Bibcode
González Manrique, S. J.; Denker, C.; Kuckein, C.; Pastor Yabar, A.; Collados, 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.; Schmidt, W.; Sigwarth, M.; Sobotka, M.; Solanki, S. K.; Soltau, D.; Staude, J.; Strassmeier, K. G.; Volkmer, R.; von der Lühe, O.; Waldmann, T.
Referencia bibliográfica
Fine Structure and Dynamics of the Solar Atmosphere, Proceedings of the International Astronomical Union, IAU Symposium, Volume 327, pp. 28-33
Fecha de publicación:
10
2017
Número de citas
5
Número de citas referidas
4
Descripción
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,
e.g., in the near-infrared He i 10830 Å triplet, 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.