prepare.ELODIE: Read an ELODIE Spectrum as Template
In oczoske/slacR: R-package to measure v and sigma from VIMOS IFU cubes

Description Usage Arguments Details Value Author(s) See Also

This function provides a wrapper to prepare.template specifically geared to ELODIE spectra.

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prepare.ELODIE(ident, config.file = NULL, path = NULL, type="H",
               lambda.lim = NULL, resolution.target=NULL,
               contdiv=FALSE, contsub=FALSE, ...)

`ident`	character string identifying an ELODIE spectrum. This is the basename of the corresponding fits file.
`config.file`	name of a configuration file. This can be used to specify a wavelength range to be used with a given target galaxy.
`path`	optional character string to specify non-standard path to the ELODIE library
`type`	Choose high ("H") or low ("L") resolution version of ELODIE spectra. The high-resolution spectra have R=42,000 and a normalized ot the continuum. The low-resolution spectra have R=10,000 and are flux-calibrated.
`lambda.lim`	two-component vector giving the wavelength range to be read from the template spectrum. If `NULL`, the entire spectrum is read.
`resolution.target`	Instrumental resolution (sigma!) of the spectrum that is to be fitted.
`contdiv`	logical. If `TRUE`, the spectrum will be divided by a polynomial fit to the continuum. Since the ELODIE spectra are normalised to the continuum, this is set to `FALSE` by default.
`contsub`	logical. If TRUE a polynomial fit to the continuum will be subtracted. Since the ELODIE spectra are normalised to the continuum, this could be done by subtracting 1 and the parameter is set to `FALSE` by default.
`...`	Further parameters to be passed to `prepare.template`.

The ELODIE library is expected to reside in $SLACS_HOME/ELODIE/H. A non-standard path can be given with path.

From a given resolution.target, the routing automatically computes the required width of the smoothing kernel used by prepare.template. The instrumental resolution of the ELODIE spectra is ??? Angstroms.

The object name and atmospheric parameters are looked for in keywords OBJECT, SPTYPE, I\_FE\_H, I\_TEFF and I\_LOGG.

An object of class spectrum, resampled to a logarithmic wavelength vector.

Oliver Czoske

prepare.template, prepare.spectrum

oczoske/slacR documentation built on May 20, 2019, 8:23 p.m.