Algorithm and Technique Development
I have also worked data acquisition and reduction techniques.
By good observational technique, and careful data reduction I have
managed to obtain exquisite correction for the effects of absorption
in the Earth's atmosphere on stellar spectra.
The most dramatic example of this process was our detection of
features at the 1 percent level in the cataclysmic variable SS Cyg
(Webb, Naylor & Jeffries 2002
This showed its secondary star has the cool spots predicted by the idea
that magnetic braking drives the mass transfer in these stars.
The method has also allowed us to derive precise masses and radii for
the secondary stars in these systems, confirming the theoretical
predictions are correct, but also suggesting peculiar abundances as a
result of the binary evolution
Allan & Long 2005
Beekman et al 2000