The images will be part of a new hypertext exhibit to expand the range of topics to biological subjects. His final presentation impressed all of the Observatory staff with the wealth of beauty in our everyday environment. Laura has already prepared her poster for the winter AAS meeting in San Diego. I intend to keep working on it. The 2D Fourier transform of the dynamic spectrum produces a distribution of points in the plane of inverse frequency and inverse time, called the secondary spectrum.
Wisps appear as faint diffuse features extending outward from the origin of secondary spectra.
First recognition of wisps came from recent Arecibo observations, and their study is a topic of contemporary research. They are found to lie significantly above the noise floor. Amanda analyzed data for a dozen pulsars. She found no new islands but did find at least four pulsars with evidence for wisps. Amanda described some of the basic properties of these wisps which may help to explain their nature.