Empirical SpecMatch¶
Empirical SpecMatch, SpecMatch-Emp
for short, is an algorithm for
characterizing the properties of stars based on their optical
spectra. Target spectra are compared against a dense spectral library
of well-characterized touchstone stars. A key component of
SpecMatch-Emp
is the library of high resolution (R~55,000), high
signal-to-noise (> 100) spectra taken with Keck/HIRES by the
California Planet Search. Spectra in the library may be accessed by a
convenient Python API. For non-Python users spectra are also available
monolithic memory-efficient HDF5 archive and a la carte as individual
FITS files.
Code availability¶
The SpecMatch-Emp
codebase is availble on GitHub. Simply clone the
repository and run python setup.py install
. For more details, go to
the Installation page.
Basic Usage¶
The most basic method of using SpecMatch-Emp is to run the command line script:
smemp specmatch rjXXX.XXXX.fits
This performs the shifting and matching process, prints the results and
saves it into a .h5 file which can be read by SpecMatch.read_hdf()
in
python.
For more details on using the command line interface, visit Command Line Interface. For a more general usage primer, check out the Quickstart page.
Attribution¶
If you make use of the specmatch-emp spectral library or matching code, please cite Yee et al. (2017) [ADS Record]
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