Preliminary results of the solar corona spectroscopic observation of 9th March 2016 Total Solar Eclipse

International Symposium on Sun, Earth, and Life

物理学;天文学;生物科学

Mumpuni, Emanuel Sungging^1 ; Nurzaman, Muhamad Zamzam^1,2 ; Suryana, Nana^1

Center of Space Science, National Institute of Aeronautics and Space (Pussainsa LAPAN), Jl. Dr. Djundjunan 133, Bandung, Indonesia^1

Dept of Astronomy, FMIPA ITB, Jl. Ganesha 10, Bandung, Indonesia^2

关键词: 2-D spectrum;    Extracting information;    Extraction process;    Low signal-to-noise ratio;    Polynomial interpolation;    Solar corona;    Total solar eclipse;    Wavelength calibration;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/771/1/012004/pdf
DOI  :  10.1088/1742-6596/771/1/012004

来源: IOP

【 摘 要 】

Spectroscopy observation of solar corona has been carried out from 9th March 2016 Total Solar Eclipse expedition in Maba, East Halmahera. Due to limitation by the weather condition during the observation, the obtained data were not favorable. Because of the low signal to noise ratio, the wavelength calibration was not straightforward. To obtain the optimum results, steps for data reduction were performed as the following: selecting the finest data, extracting the 1D spectrum from 2D spectrum, and calibrating spectrum wavelength (including careful interpolation). In this preliminary result, we discuss the instrumentation, the data under investigation, the extraction process of spectrum, and the polynomial interpolation that has been used for extracting information from our data.