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Contents
Contents
Introduction
Installing Calnic C
Downloading the software
Installation Procedure
Environment Variables and Calnic C
Rebuilding the shared SExtractor Library
Rebuilding the IDL Calnic C binary Library
Using Calnic C
Customizing Calnic C
Running the Program
Input to Calnic C
Output of Calnic C
Viewing the Postscript Output Spectra
Reading a Spectrum's FITS Table Extension into IDL
Algorithms
Overview
Reading Image files
Object Detection & Classification on Direct Images
NICMOSlook
Calnic C
SExtractor
Verify Object Significance
Grism Image Object Identification
Background Subtraction
Variations in Background
Interpolated Background Subtraction
Pre-Defined Background Subtraction
Pre-launch model of Background
Current Background Estimates
Spectra Extraction
Wavelength Calibration and distortions
Description of grisms
Dispersion Relation
Distortion Model
Flux and Error Bars
Extraction Weights
Weights for Point Sources
Weights for Extended Objects
Flatfielding of Spectra
Flux Calibration
Method
Response Files
Deblending Overlapping Objects
Identification of overlapping spectra
Computation of Contamination
Correction for Contamination
Error estimates
Unsolvable cases
Example
Using Deblending
Total Error Estimate
Correction of Spectra for the Pixel Response Function
The Location of Spectra and the Response Function
Correction of Extracted Spectra
Characterization of extracted Spectra
Introduction
Line Searches
Continuum
Broad Absorption Features
Spectral FITS files Format
Catalogue Output
Log file
Software Dependencies, System Requirements & Debugging
Calnic C
Directory Structure
Calnic C Setup Parameters
Calnic C Grismspec Entries
Calnic C Configurable FITS Keyword Values
SExtractor Specific Files
IDL
Environment Variables
Debugging
Debugging Levels
Integration into Pipeline
CALNIC A & B
Request Handler
Acknowledgements
Calnic C Utilities
Reading Spectral FITS Tables Into IRAF
FITS Output File
FITS File Description
FITS Binary Table Description
FITS Table Primary Header Example
FITS Table Primary Header Example: continued
FITS Table Header Extension Example
FITS Table Header Extension Example : Continued
Setup
Grism Specification File
Contents
Format
Direct Image
Grism Image
Tunable Parameters
Configuring FITS Keywords
Input File Format
NICMOS Input FITS File Description
NICMOS FITS Header Keyword Requirements
Object List
Catalogue Output
Sample Data Files
List of all input files
Wolfram Freudling
5/29/1999