Figaro Techinques

Figaro Techniques

A guide to using Figaro functions to perform various data reduction tasks.

  1. 1. Introduction
  2. 2. Flat fielding
    1. 2.1. Image Data
    2. 2.2. Spectral data
  3. 3. B Stars
  4. 4. Filters
  5. 5. Spiketra
  6. 6. Flux calibration
    1. 6.1. Units
    2. 6.2. Standard files
    3. 6.3. The Final Step.
    4. 6.4. Published Standards
    5. 6.5. First Step -- Turning the Table into a Spiketrum
    6. 6.6. Second Step -- For Oke _& Gunn Data
    7. 6.7. Second Step -- For Filippenko & Greenstein Data
    8. 6.8. An Alternative Second Step -- Filippenko-Greenstein Data
    9. 6.9. The Final Step Revisited
    10. 6.10. AB Magnitudes, and a Test
    11. 6.11. Summary
    12. 6.12. References
  7. 7. FFT Functions
    1. 7.1. Complex Data Structures
    2. 7.2. Creating a Complex Structure
    3. 7.3. Going Smoothly to Zero at the Ends -- COSBELL
    4. 7.4. Taking the Fourier Transform
    5. 7.5. Extracting the Real and Imaginary Parts
    6. 7.6. Operations on Complex Data
    7. 7.7. Complex Filters and Data Smoothing
    8. 7.8. Cross Correlation, and a Sequence Something Like SCROSS.
    9. 7.9. Summary of Figaro FFT Routines
    10. 7.10. References:
  8. 8. FITS
    1. 8.1. The FITS data structure in a file
    2. 8.2. Reading FITS Tapes
    3. 8.3. Writing FITS Tapes
    4. 8.4. Accessing the FITS keywords in a file
    5. 8.5. WIFITS and array values.
    6. 8.6. Disk `FITS' Formats
    7. 8.7. References --
  9. 9. Comparing images
  10. 10. Straightening spectra
    1. 10.1. Usual Sequence
    2. 10.2. Self-Correcting Objects
    3. 10.3. Use of the CDIST parameter ROTATE
    4. 10.4. Making Do Without An Image Display
  11. 11. Wavelength calibrations
    1. 11.1. Discrete and Continuous Channel Numbers
    2. 11.2. Wavelength Arrays
    3. 11.3. The ARC Command
    4. 11.4. Applying an Arc Fit to Other Spectra
    5. 11.5. Linear Wavelength Scales -- Scrunching
    6. 11.6. 2-Dimensional Scrunching
    7. 11.7. Sequence Summary
  12. 12. Extinction
    1. 12.1. References
  13. 13. LET
    1. 13.1. Examples
    2. 13.2. Rules
    3. 13.3. Command language symbols
    4. 13.4. Limitations
  14. 14. Build files
  15. 15. The `ARC' command
    1. 15.1. Use with Figdisp
    2. 15.2. Arc line lists
    3. 15.3. Other initial prompts
    4. 15.4. The line selection process
    5. 15.5. Use of the running fit and other subtleties
    6. 15.6. Moving about the spectrum and other commands
    7. 15.7. Fitting and Editing -- The Menu Stage.
    8. 15.8. The Automatic Line-Finding Facility
    9. 15.9. On the way out of ARC