The Chemical Abundances of Tycho G in Supernova Remnant 1572

@article{Hernandez2008TheCA,
  title={The Chemical Abundances of Tycho G in Supernova Remnant 1572},
  author={Jonay I. Gonz'alez Hern'andez and Pilar Ruiz-Lapuente and Alexei V. Filippenko and Ryan J. Foley and Avishay Gal-yam and Joshua D. Simon},
  journal={The Astrophysical Journal},
  year={2008},
  volume={691},
  pages={1-15}
}
We present an analysis of the chemical abundances of the star Tycho G in the direction of the remnant of supernova (SN) 1572, based on Keck high-resolution optical spectra. The stellar parameters of this star are found to be those of a G-type subgiant with T eff = 5900 ± 100 K, log(g/cms2) = 3.85 ± 0.30 dex, and [Fe/H] = –0.05 ± 0.09. This determination agrees with the stellar parameters derived for the star in a previous survey for the possible companion star of SN 1572 (Ruiz-Lapuente et al… Expand
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