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flux calibration #45

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changhoonhahn opened this issue Jun 16, 2020 · 1 comment
Open

flux calibration #45

changhoonhahn opened this issue Jun 16, 2020 · 1 comment
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In the current DESI spectroscopic pipeline, flux calibration is applied to the frame spectra in order to calibrate the spectrographs and correct for PSF fiber loss. Currently, we marginalize over the spectro-photometric calibration, which should marginalize over the PSF fiber loss correction if we assume PSF fiber loss is constant across the spectrographs. This assumption seems to be the case based on Legacy Survey (r_fib vs r_tot) but remains to be confirmed from spectral data alone.
@changhoonhahn changhoonhahn added the question Further information is requested label Jun 16, 2020
@changhoonhahn changhoonhahn self-assigned this Jun 16, 2020
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How would the flux calibration in the desispec pipeline affect the inferred fiber M*?

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