Figure 4 from Upper Limits on the 21 cm Epoch of Reionization Power Spectrum from One Night with LOFAR

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Upper Limits on the 21 cm Epoch of Reionization Power Spectrum from One Night with LOFAR

Authors: A. H. Patil, S. Yatawatta, L. V. E. Koopmans, A. G. de Bruyn, M. A. Brentjens, S. Zaroubi, K. M. B. Asad, M. Hatef, V. Jelić, M. Mevius, A. R. Offringa, V. N. Pandey, H. Vedantham, F. B. Abdalla, W. N. Brouw, E. Chapman, B. Ciardi, B. K. Gehlot, A. Ghosh, G. Harker, I. T. Iliev, K. Kakiichi, S. Majumdar, M. B. Silva, G. Mellema, J. Schaye, D. Vrbanec, and S. J. Wijnholds

2017 The Astrophysical Journal 838 65.

Provider: AAS Journals

Caption: Figure 4.

Stokes I (top) and V (bottom) cylindrical power spectra after sky model and GMCA-model subtraction, for L90490. From left to right are shown the redshift ranges z = 9.6–10.6, z = 8.7–9.6, and z = 7.9–8.7, respectively. The dashed curved lines in the Stokes I spectra refer to k-values of 0.054, 0.067, 0.083, 0.103, and 0.128 for z = 8.7–9.6, and only slightly different values for the other redshift bins. It is along these lines that we form the spherically averaged power spectra.

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