Table of Contents
HIGH DYNAMIC RANGE IMAGING
WHY TRY FOR HIGH DYNAMIC RANGE?
High Dynamic Range Example
FIDELITY vs. DYNAMIC RANGE
WHAT MATTERS?
CLOSURE ERRORS
SOURCES OF CLOSURE ERRORS
DEMO OF BANDPASS MISSMATCH
SPECIAL VLA PROBLEMS
IMAGING CONCERNS (1)
IMAGING CONCERNS -- SELF CALIBRATION
CLOSURE CALIBRATION
DYNAMIC RANGE LIMITS
3C273 EXAMPLE (1)
3C273 RESIDUAL DATA
3C273 Calibrated Images
VALUE OF SHORT BASELINES
Deconvolution Problem with Partially Resolved Sources
3C48 UV DATA
3C48 IMAGES
SPECIAL PROBLEMS FOR WIDE FIELDS
WIDE FIELD EXAMPLE
External calibration only
Sample primary beams
Self-cal on confusing source
Confusing source subtracted. Self-cal on primary beam sources
PPT Slide
|
Author: Craig Walker
Email: cwalker@nrao.edu
Other information:
Powerpoint slides for presentation on High
Dynamic Range Imaging at the 2000 NRAO Synthesis Imaging Summer School.
|