Fundamental Limitations on the Calibration of Redundant 21 cm Cosmology Instruments and Implications for HERA and the SKA

@article{Byrne2018FundamentalLO,
  title={Fundamental Limitations on the Calibration of Redundant 21 cm Cosmology Instruments and Implications for HERA and the SKA},
  author={Ruby Byrne and Miguel F. Morales and Bryna J. Hazelton and Wenyang Li and Nichole Barry and Adam P. Beardsley and R Cavallaro Joseph and Jonathan C. Pober and Ian Sullivan and Cathryn M. Trott},
  journal={The Astrophysical Journal},
  year={2018},
  volume={875},
  pages={70}
}
  • Ruby Byrne, Miguel F. Morales, +7 authors Cathryn M. Trott
  • Published 2018
  • Physics
  • The Astrophysical Journal
  • Precise instrument calibration is critical to the success of 21 cm Cosmology experiments. Unmitigated errors in calibration contaminate the Epoch of Reionization (EoR) signal, precluding a detection. Barry et al. 2016 characterizes one class of inherent errors that emerge from calibrating to an incomplete sky model, however it has been unclear if errors in the sky model affect the calibration of redundant arrays. In this paper, we show that redundant calibration is vulnerable to errors from sky… CONTINUE READING