Spitzer: Downloading, Installing, and Running

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Downloading, Installing, and Running

Downloading and Installing

Download the gzip tar file irsfringe_v1.1.tar.gz (3.9MB)

Unpack the package:
```
tar xvfz irsfringe_v1.1.tar.gz
```

You will need to have IDL installed and the IDL_DIR and IDL_PATH environment variables defined. For example, if you untarred the package in the directory /home/joe/irsfringe_v1.1:
```
setenv IDL_DIR /COTS/idl/idl_5.6 
setenv IDL_PATH /COTS/idl/idl_5.6/lib:+/home/joe/irsfringe_v1.1/IRSFRINGE
```

Create an alias for IRSFRINGE. For example, if you untarred the package in the directory /home/joe/irsfringe_v1.1:
```
 alias irsfringe '/home/joe/irsfringe_v1.1/IRSFRINGE' 
```

Running

Start the IRSFRINGE IDL tool by typing the following alias command in the running directory:
```
irsfringe
```

Read in the IRS product, for example, "SPITZER_S3_5638912_17_1_E173247_tune.tbl", stored in the "data/" sub-directory. Note that IRSFRINGE can only be used on the IRS products that come out of the extraction (post-BCD) pipeline, namely those with the filename suffix spect.tbl, spect2.tbl, or tune.tbl (see Archive Pipeline Products for IRS).
```
IDL> irs=ipac2irs('data/SPITZER_S3_5638912_17_1_E173247_tune.tbl')
```

Defringe spectrum of echelle order 18:
```
IDL> irsd=irsfringe(irs,order=18)
```

By default, IRSFRINGE removes both the main and second fringe components. To remove only the main fringe component:
```
IDL> irsd=irsfringe(irs,order=18,/first)
```

To remove only the second fringe component:
```
IDL> irsd=irsfringe(irs,order=18,/second)
```

To run the same IRSFRINGE session and start the GUI:
```
IDL> irsd=irsfringe(irs,order=18,/GUI)
```

For all other options, see the IRSFRINGE User's Guide.