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        검색결과 3

        3.
        2006.12 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        In order to determine the precise effective temperature and surface gravity of warm stars, all synthetic spectral lines in the wavelength range of 4000-5700Å with T=6000-7750 K, and log g=3.5, 4.0, and 4.5 for [M/H]=0.0, Vrot=10 km s-1, and Vtubl=2 km s-1 were calculated using the SYNSPEC package(Hubeny, et al., 1995) and the Kurucz(1995) model. Then, the depth-ratios for all line pairs were investigated and we selected two and six depth-ratios appropriate for the surface gravity and temperature indicators, respectively. We plotted six grids with X- and Y-axes for the depth-ratios of surface gravity and temperature, respectively, for the simultaneous estimation of these two atmospheric parameters. This method was applied to the spectum of δ Scu for the determination of its temperature and surface gravity simultaneously.
        3,000원