Computer Science – Databases
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mwoc.conf..419s&link_type=abstract
Multi-Wavelength Observations of Coronal Structure and Dynamics -- Yohkoh 10th Anniversary Meeting. Proceedings of the conferenc
Computer Science
Databases
4
Scientific paper
Since the CHIANTI database for astrophysical emission line spectroscopy was extended to X-ray wavelengths below 50Å recently (Dere et al. 2000), a temperature response of YOHKOH/SXT has been able to calculate using the database. The functions of temperature responses of SXT are very important for plasma diagnostic since we usually derive the electron temperature of coronal plasma using the observed signal counts and the ratio of the temperature responses. In this paper, we present the properties of the SXT temperature responses which are calculated from the CHIANTI database and also compare them with the SXT temperature responses which are calculated using Mewe spectral databases (Mewe, et al., 1985, 1986). We calculated the filter ratios using CHIANTI database and compared them with the filter ratios which are calculated from Mewe database. At the result, it is found that the difference between temperatures which are derived using CHIANTI and Mewe database is about 2 MK around 5 MK, if we use Al and Al12 filters for the plasma diagnostic. The result is the same as Schmelz et al.(1999). In the paper, we also discuss the effect of the CHIANTI spectral databases for previous works which used the filter ratios based on Mewe database.
Hara Hisayuki
Kano Ryouhei
Shimojo Miki
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