A system for treatment and visualization of astronomical spectral data / Um sistema para tratamento e visualização de dados astronômicos espectrais

AUTOR(ES)
DATA DE PUBLICAÇÃO

1999

RESUMO

The Brazilian Solar Spectroscope (BSS) is a radiotelescope that features high sensitivity and high spectral and temporal resolutions. The BSS is currently being used for the observation of solar explosions, in the decimetric bandwidth, at the Brazilian Institute for Space Research (INPE). An acquisition system was developed to digitise BSS signals up to 35 MBytes per hour. Besides this high dataflow there is the inherent complexity of such observations as the signal intensity of the observed phenomena is superposed by a continuous Sun background emission and both signals vary in time and frequency. As the processing, visualization and analysis of such data are difficult for the astronomer, this work presents a system to perform this tasks, the BSSView. It was designed following Scientific Visualization models and it is composed by specific modules aimed for preprocessing, visualization and post-processing of observed data, provided with user graphical interfaces and written in the Interactive Data Language (IDL). As BSSview allows near real time visualization it provides a feedback for the modification of the acquisition parameters, according to the observed phenomena. This system is currently operational and processes data daily between 11:30 AM and 7:30 PM. Several datasets related to solar flares were already acquired and visualized, being available to further analysis.

ASSUNTO(S)

aquisição de dados computação gráfica radioastronomia visualização científica radioteles-cópio explosões solares em rádio

ACESSO AO ARTIGO

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