IDL = Interactive Data Language
SIMPLE Imaging and Mosaicking Pipeline
Below are some small tools that may be useful for some people.
Generate a 2-D Gaussian image.
Cross-correlate two
catalogs and find
overlap objects. Useful for
dealing with multi-wavelength catalogs. This is a NEW
version,
which runs much faster than the old one for large catalogs of >104
sources. A subroutine cross_dogs.pro
is required.
Merge two vectors into one.
My version of ascii file reading tool.
Detect objects in an image. This was written to replace find.pro in the IDL Astronomy Library, by using the SExtractor package, which is now standard in extragalactic astronomy for generating source catalogs. Comparing to find.pro, sexfind.pro produces better flux measurements and more accurate source positions. To use this, you must have both the IDL Astronomy Library (how to?) and SExtractor installed in your system, and the subroutine my_read_ascii.pro in your working directory or included in the IDL library. You also need to have a SExtractor configuration file and a catalog parameter file in your working directory. Here are examples of the configuration file sexfind.default and parameter file sexfind.para.
Write a set of RA/Dec or x/y data into ds9's reg file. Useful to see how a catalog and an image match.