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The authors have feuded with the EHT collaboration for quite a while. Here is a previous reply by the collaboration: https://eventhorizontelescope.org/blog/imag

• SiempreViernes 2y ago
  This time they put more effort into it: https://eventhorizontelescope.org/blog/response-independent-analysis-ehtc-imaging-sgr-miyoshi-et-al-2024 https://eventhorizontelescope.org/blog/response-independent-... Some highlights: * M24 erroneously claims that the EHTC methodology does not account for the point-spread-function (PSF) of the observation. In fact, the EHTC hybrid imaging approach explicitly corrects for the PSF through the CLEAN algorithm. Other algorithms implicitly incorporate PSF effects into the reconstruction algorithms. Furthermore, non-imaging (e.g., model fitting) methods confirm the ring-like structure is the most likely simple model that fits the data. Note that the EHTC methods recover non-ring structures in both synthetic data tests as well as real data that has the same PSF, for example when imaging the non-ring-like polarization of the black holes M87* and Sgr A* (10). * M24 erroneously claims that the EHTC did not release uncalibrated raw data. In fact, all of 2017 EHTC raw and calibrated data have been publicly available since May 2022 (11).