This website lists the cookbooks that involve the use of the SSC software tool SPICE.


IRS-SL
Mapping-mode
SPICE extraction
NGC4579 is an extragalactic source which was observed as part of the SINGS Legacy program. The source was mapped out using both the low and high resolution modules of the IRS. In this cookbook we outline the steps required to go from the zip file you get from the Spitzer data archive to a basic spectrum using the spectral extraction tool called SPICE. The illustration here is for only one position in the spectral map but can be used for any observation performed in the staring mode or spectral mapping mode.

IRS-SL2
Staring-mode
SPICE Point Source extraction
This is a demonstration of using SPICE to extract a spectrum from IRS data for the object Herbig-Haro 46/47. We outline the basic steps for using SPICE as a generic example for handling any point source data obtained with Spitzer IRS-Staring Mode. The steps are analogous to those outlined here. This specific example involves an extraction from the SL2 module, but it is generally applicable to all of the IRS modules. This demonstrates only a point source extraction; SPICE is currently capable of extracting spectra for extended sources. For a discussion, see the IRS Extended Source calibration page on our website.

IRS-LL2
Moving target
Background-subtraction
SPICE extraction
This demonstration uses SPICE to extract a spectrum from IRS data of the Comet Schwassmann-Wachmann-1. We describe the steps required to background-subtract your data and use the SPICE tool to perform a custom extraction of your target's spectrum. Background subtraction is particularly important for targets on a high background, such as that found in the ecliptic plane. Similarly for a moving target such as a comet, a custom extraction, rather than the standard pipeline product, may be important to separate the effects of nucleus and coma, and to otherwise correctly extract a slightly extended object, or one with an unusual morphology. This demonstration then, serves as a generic example for handling moving target data obtained with Spitzer IRS-Staring Mode. This specific example involves an extraction from the LL2 module, but it is generally applicable to all of the IRS modules.

IRS-LL1
Mapping-mode
SPICE Optimal extraction
In this cookbook, we demonstrate the data reduction strategies used for ultradeep IRS spectroscopy. This page follows the IRS Best Practices memo for the same observation, but we now include optimal extraction in SPICE which was not previously available. The ultradeep proof of concept data (PID=252) included observations in SL1, LL2, and LL1. We use the LL1 data here. The target was a z=2.69 ULIRG. A total of 12 hours on-source integration was performed, using mapping-mode to place the target at 6 positions along the slit.


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This file was last modified on Fri Mar 28 14:33:42 PDT 2008.

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