Spectrally dispersed kernel phase interferometry with scexao/charis: proof of concept and calibration strategies

HIGHLIGHTS

SUMMARY

    By producing interferometric observables that are self-calibrating to first order in phase, KPI can be used J. Astron. This can result in uncorrected "calibration errors," since the PSF KPs do not accurately represent the systematics present in the science target.12 A key goal of this study is to compare the performance of kernel phase RDI (KP-RDI) and kernel phase spectral differential imaging16 (KP-SDI) for calibration of data. For CHARIS, due to the relatively small width of the spectral bands (~20 nm) and simultaneous measurement, kernel phases from adjacent wavelength bands . . .

     

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