Foregrounds in Wide-Field Redshifted 21 cm Power Spectra

@article{Thyagarajan2015ForegroundsIW,
  title={Foregrounds in Wide-Field Redshifted 21 cm Power Spectra},
  author={N. Thyagarajan and D. Jacobs and J. Bowman and N. Barry and A. Beardsley and G. Bernardi and F. Briggs and R. Cappallo and P. Carroll and B. E. Corey and A. D. Oliveira-Costa and J. S. Dillon and D. Emrich and A. Ewall-Wice and L. Feng and R. Goeke and L. Greenhill and B. J. Hazelton and J. Hewitt and N. Hurley-Walker and M. Johnston-Hollitt and D. Kaplan and J. Kasper and H. Kim and P. Kittiwisit and E. Kratzenberg and E. Lenc and J. Line and A. Loeb and C. Lonsdale and M. Lynch and B. McKinley and S. R. McWhirter and D. Mitchell and M. Morales and E. Morgan and A. Neben and D. Oberoi and A. Offringa and S. M. Ord and S. Paul and B. Pindor and J. C. Pober and T. Prabu and P. Procopio and J. Riding and A. Rogers and A. Roshi and N. Shankar and S. Sethi and K. Srivani and R. Subrahmanyan and I. Sullivan and Max Tegmark and S. J. Tingay and C. Trott and M. Waterson and R. B. Wayth and R. Webster and A. Whitney and A. Williams and C. Williams and C. Wu and J. Wyithe},
  journal={The Astrophysical Journal},
  year={2015},
  volume={804},
  pages={14}
}
  • N. Thyagarajan, D. Jacobs, +61 authors J. Wyithe
  • Published 2015
  • Physics
  • The Astrophysical Journal
  • Detection of 21 cm emission of H I from the epoch of reionization, at redshifts > z 6, is limited primarily by foreground emission. We investigate the signatures of wide-field measurements and an all-sky foreground model using the delay spectrum technique that maps the measurements to foreground object locations through signal delays between antenna pairs. We demonstrate interferometric measurements are inherently sensitive to all scales, including the largest angular scales, owing to the… CONTINUE READING
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