Quote:
Originally Posted by Paul Haese
d.
Thanks Robert for your comments. Quite interesting. I will go and take a look at that thread. It might help with my processing of halos in future.
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Hello Paul,
Halo studies are really hotting up, at present, in the professional community. They have pushed integrated-light imaging of halos to about 30 magn. per sq. arsecond, and they are currently trying for 32 magn. per square arcsecond.
See for instance work done with this interesting array of small refractors:
http://dunlap.utoronto.ca/instrumentation/dragonfly/
http://arxiv.org/abs/1401.5473
I am pretty sure that the professionals have figured out some pretty good tricks and techniques for reducing the effects of sub-optimal flatfielding, scattered light in the optics, and other factors that could make it difficult to detect extremely low surface brightness light.
I am not, however, familiar with the literature on this!
cheers,
Robert
And now, just for fun and profit.....
Very Deep Image of the Virgo Cluster to 28.5 V magnitude per square arcsecond, by Mihos and Harding of CWRU::
