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TRES Spectrograph
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[Observation] [Quicklook)] [IDL Pipeline)] [Reduction (Software) [Archive]
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TRES Spectrograph
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[Observation] [Quicklook)] [IDL Pipeline)] [Reduction (Software) [Archive]
You can reduce TRES data using IRAF tools, but we have written a number
of tasks which make it easier. To follow the process described on our
Reduction page, you will need the following
external IRAF packages:
TRES Package
These tasks were written especially for reducing TRES
data.
The package can be downloaded via HTTP from http://tdc-www.harvard.edu/instruments/tres/tres-1.4.0.tar.gz
Precompiled Redhat Linux binaries for IRAF 2.14 are at http://tdc-www.harvard.edu/instruments/tres/tres-1.4.0-bin.redhat.tar.gz
Precompiled Solaris binaries for IRAF 2.14 are at http://tdc-www.harvard.edu/instruments/tres/tres-1.4.0-bin.ssun.tar.gz
You should download templates for the modes in which you have observed into the $tresdata/ directory from:
| Fall (and earlier) 2010 runs with medium fibers | http://tdc-www.harvard.edu/pub/instruments/tres/cal/tresdata20100928.tar.gz |
| December 2009 through July 2010 runs with small and medium fibers | http://tdc-www.harvard.edu/pub/instruments/tres/cal/tresdata20091204.tar.gz |
| Later 2009 runs with small and medium fibers | http://tdc-www.harvard.edu/pub/instruments/tres/cal/tresdata20090608.tar.gz |
| March and April 2009 runs with small and medium fibers | http://tdc-www.harvard.edu/pub/instruments/tres/cal/tresdata20090410.tar.gz |
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December 2007 and January 2008 runs medium and large fibers
(usable at least through July 2008) | http://tdc-www.harvard.edu/instruments/tres/cal/tresdata20080814.tar.gz |
| October 2007 run small fiber | http://tdc-www.harvard.edu/instruments/tres/tres-data-run2s.tar.gz |
| September 2007 run medium fiber | |
| September 2007 run small fiber |
Check http://iraf.noao.edu/iraf/ftp/iraf/extern-v212/ for the latest release. The needed files are usually found in the mscred/ subdirectory.
To process TRES data, you need our mscdb entries.
Here is the latest mscdb, with both ours and NOAO's entries via http:
http://tdc-www.harvard.edu/instruments/hectospec/mscdb-4.3.tar.gz
Rvsao Package
While this package was originally written to compute radial velocities
and redshifts, the sumspec
task turned out to be very useful for manipulating files composed of
stacks of spectra, such as those extracted from a multi-fiber spectrograph
image. The emission-line-fitting task,
emsao,
can be used to measure emission lines for sky scaling (we use the OH
emission line at 8399 Angstroms), while the cross-correlation task,
xcsao can be used to check for
contamination of supposed sky spectra by galaxy or star spectra, using
our standard galaxy emission and absorption templates, femtemp97.fits
and ztemp.fits.
You can download the package via HTTP from http://tdc-www.harvard.edu/iraf/rvsao/rvsao-2.7.8.tar.gz
Precompiled Redhat Linux binaries for IRAF 2.14 are at http://tdc-www.harvard.edu/iraf/rvsao/rvsao-2.7.8-bin.redhat.tar.gz
Precompiled Solaris binaries for IRAF 2.14 are at http://tdc-www.harvard.edu/iraf/rvsao/rvsao-2.7.8-bin.ssun.tar.gz
The templates we use for XCSAO are in rvsao$Templates/
WCSTools Package
This package interfaces IRAF to a package of tools which is used mostly
for header manipulation, though it does lots of other things to images.
Source code in the IRAF package directory structure is at
http://tdc-www.harvard.edu/software/wcstools/wcstools-3.8.1.iraf.tar.gz
(readme)