Measurements with widefield radio interferometers often include the near-infinite gradient between the sky and the horizon. This causes aliasing inherent to the measurement itself and is purely a consequence of the Fourier basis. For this reason. the horizon is often attenuated by the instrumental beam down to levels deemed inconsequential. https://www.getpureroutine.com/hot-offer-rosy-teacups-dogwood-discount-best-super/