Speaker
Pyxie Star
(University of Washington)
Description
As spectral calibration precision is the greatest limiting factor for EoR science, understanding individual antenna behavior is crucial. The new MWAX correlator provides a unique opportunity to examine antenna spectral shape without the nonlinearities and other digital artifacts present in Legacy correlator data. By removing coarse channel polyphase filter shapes and cable reflections we uncover the underlying antenna bandpass as well as some unexpected residual digital artifacts. This work reveals a diversity of bandpasses with previously unseen features, informing new directions in precision calibration for EoR and other science.
Primary author
Pyxie Star
(University of Washington)
