• DOI:10.1088/0004-637X/774/2/99
• Corpus ID: 118470111

A HIGH-RESOLUTION SPECTROSCOPIC SEARCH FOR THE REMAINING DONOR FOR TYCHO'S SUPERNOVA

@article{Kerzendorf2013AHS,
  title={A HIGH-RESOLUTION SPECTROSCOPIC SEARCH FOR THE REMAINING DONOR FOR TYCHO'S SUPERNOVA},
  author={W. E. Kerzendorf and David Yong and Brian Schmidt and Joshua D. Simon and C. Simon Jeffery and Jay Anderson and Philipp Podsiadlowski and Avishay Gal-yam and Jeffrey M. Silverman and Alexei V. Filippenko and Ken’ichi Nomoto and Simon J. Murphy and Michael S. Bessell and Kim A. Venn and Ryan J. Foley},
  journal={The Astrophysical Journal},
  year={2013},
  volume={774}
}

• W. E. Kerzendorf, D. Yong, +12 authors R. Foley
• Published 9 October 2012
• Physics
• The Astrophysical Journal

In this paper, we report on our analysis using Hubble Space Telescope astrometry and Keck-I HIRES spectroscopy of the central six stars of Tycho's supernova remnant (SN 1572). With these data, we measured the proper motions, radial velocities, rotational velocities, and chemical abundances of these objects. Regarding the chemical abundances, we do not confirm the unusually high [Ni/Fe] ratio previously reported for Tycho-G. Rather, we find that for all metrics in all stars, none exhibit the characteristics expected from traditional Type Ia supernova single-degenerate-scenario calculations. The only possible exception is Tycho-B, a rare, metal-poor A-type star; however, we are unable to find a suitable scenario for it. Thus, we suggest that SN 1572 cannot be explained by the standard single-degenerate model.