Michael Liu
Michael Liu
adaptive close faint found images optics parent produce seen sharp star using
Only by using adaptive optics to produce very sharp images could we have found this companion. It is too faint and too close to its parent star to be seen otherwise.
bright halo handful saw seen stars stellar
If the halo had a normal, stellar population, we should have seen over 100 bright stars in our images. Much to our surprise, we only saw a handful of them.