As I understand it by default the LSST Science Pipelines deblend in single band mode using the HSC/SDSS deblender. If I want to switch on the SCARLET multiband deblender am I right in thinking I need to retarget the deblender using something like:
from lsst.meas.deblender.deblend import MultibandDeblendTask config. singleBandDeblend.retarget(MultibandDeblendTask)
in a config/deblendCoaddSources.py file.
I can see that the default config deblend.py has settings such as “config.multiBandDeblend.monotonic=True” which made me think perhaps I can run it with a different command or it is in fact being run by default in v21.
I had thought that I could use the multibandDeblender by simply sending multiple bands “filter=HSC-G^HSC-R” to the deblendCoaddSources.py task but when it runs it seems to only refer to the singleBandDeblend task.
Finally what should be the result of running the multiband deblender? Will it be a new set of flux measurements that are completely distinct from the standard measurements such as ‘circularApertureFlux’ since the same flux exists in a circle regardless of deblending? Will this exist in an independent catalogue file in the Butler or as an extra set of columns in the main measurement and forced catalogues?
I am surprised to see no multibandDeblend configuration options in obs_subaru. Is that because SCARLET is still under development and not included by default yet?
Many thanks for ongoing support!