'Roll bins' diaporamas de présentation

Introduction to Visibilities

231 views • 23 slides

The Stacker

The Stacker. Gordon Hurford, Ed Schmahl, Richard Schwartz 18-April-2005. What is the Stacker?. Current imaging algorithms based on time-binned event lists Time bins must be very short (~1-100ms) to preserve modulation Few events per bin (statistics, display, Forward Fit issues)

574 views • 18 slides

RHESSI Visibilities

RHESSI Visibilities. Gordon Hurford, Ed Schmahl, Richard Schwartz 1 April 2005. A visibility is the calibrated measurement of a single Fourier component of the source. Measured spatial frequency (arcsec -1 ): Magnitude determined by the angular pitch of the grid.

258 views • 16 slides