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Title:
New improvements of HASTA for the analysis of chomospheric solar events
Authors:
Leuzzi, L.; Francile, C.; Luoni, M. L.; Rovira, M.; Castro, J. I.
Affiliation:
AA(Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de San Juan (UNSJ), San Juan, Argentina ; Félix Aguilar Astronomical Observatory (OAFA), UNSJ, San Juan, Argentina ), AB(Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de San Juan (UNSJ), San Juan, Argentina ; Félix Aguilar Astronomical Observatory (OAFA), UNSJ, San Juan, Argentina ), AC(Instituto de Astronomía y Física del Espacio (IAFE), Argentina ), AD(Instituto de Astronomía y Física del Espacio (IAFE), Argentina ), AE(Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de San Juan (UNSJ), San Juan, Argentina ; Félix Aguilar Astronomical Observatory (OAFA), UNSJ, San Juan, Argentina )
Publication:
Solar and Stellar Variability: Impact on Earth and Planets, Proceedings of the International Astronomical Union, IAU Symposium, Volume 264, p. 93-95
Publication Date:
02/2010
Origin:
CUP
Keywords:
Instrumentation: adaptive optics - Sun: chromosphere - Sun: flares - Sun: filaments - Sun: activity - waves - telescopes
DOI:
10.1017/S1743921309992468
Bibliographic Code:
2010IAUS..264...93L

Abstract

It is well known that chromospheric observations in the hydrogen alpha line give relevant information about solar flares, plages and protuberances, among other typical features of the Sun. From 1998 to 2006, the HAlpha Solar Telescope of Argentina (HASTA) has provided solar images to the scientific community with the technological resources available at that time. Starting in 2007, major improvements have been incorporated, like a new CCD camera with enhanced spatial and temporal resolution, filter replacement, the automatic focusing system, and a new flat-fielding procedure. The hardware changes also called for software improvements, and a new solar-flare classification routine was implemented. At present, the Félix Aguilar Observatory (OAFA) of the University of San Juan (UNSJ) has a permanent staff of observers which now permits continuous solar monitoring. We expect that all these advances will allow to analyze chromospheric solar activity, especially solar flares, in more detail.

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