Figure 6 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 6.

Ratio between the Stokes I power before and after DD-calibration There is a drop of two orders of magnitude in power in the foregrounds at low ﹩{k}_{\parallel }﹩. The dashed slanted lines indicate, from bottom to top, the location of angular distances of 4.°5 and 10° from the phase center, and the maximum delay corresponding to the horizon as seen from the zenith.

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