TIGRE Telescope
readheros
Menu:
Update:
16th January 2024
With this function, one can read the standard output fits file of the TIGRE/HEROS automatic data reduction pipeline.
The notation of the main output fits file is Sci_...sp_ech_main.fits. A secondary output is a small fits file. The notation is Sci_...sp_ech_small.fits.
This file include only the blaze normalised spectrum.
In this function, the barycentric velocity correction is performed automatically if one don't set barrcorr=no. The barycentric velosity correction is estimated during the reduction and listed in the image header. Furthermore, one can also commit a radial velocity and the wavelength is shifted by this value.
The syntax is:
Input:
file: Name of the fits file
Optional:
radvel: Radial velocity [km/s]
barycorr: If one set no than the radial velocity and barycentric correction are not performed
small: One use small=yes if one read the small fits file
Returns:
For a spectrum from 1 exposure and from more than 1 where the single images are co-add:
result[0]: Header of the image
result[1]: Header of the spectrum
result[2]: Array of the wavelength of each order
result[3]: Array of the blaze normalised spectrum of each order
result[4]: Array of the blaze function (flat field spectrum) of each order
result[5]: Array of the signal to noise of each order
result[6]: Array of the normalised spectrum of each order
result[7]: Array of the merged wavelength
result[8]: Array of the merged blaze normalised spectrum
result[9]: Array of the error of the merged blaze normelised spectrum
result[10]: Array of the merged normalised spectrum
result[11]: Array of the error of the merged normalised spectrum
result[12]: Array of the global response curve
result[13]: Array of the correction of the small scale variations in the spectrum
For a spectrum from more than 1 exposure and the single spectra are available:
result[0]: Header of the spectrum
result[1]: Header of the image
result[2]: Array of the wavelength of each order
result[3]: Array of the blaze normalised spectrum of each order
result[4]: Array of the blaze function (flat field spectrum) of each order
result[5]: Array of the signal to noise of each order
result[6]: Array of the normalised spectrum of each order
result[7]: Array of the spectrum of each exposure and each order
result[8]: Array of the merged wavelength
result[9]: Array of the merged blaze normalised spectrum
result[10]: Array of the error of the merged blaze normelised spectrum
result[11]: Array of the merged normalised spectrum
result[12]: Array of the error of the merged normalised spectrum
result[13]: Array of the global response curve
result[14]: Array of the correction of the small scale variations in the spectrum
For the small fits file:
result[0]: Header of the spectrum
result[1]: Array of the wavelength
result[2]: Array of the spectrum
Example:
In this function, the barycentric velocity correction is performed automatically if one don't set barrcorr=no. The barycentric velosity correction is estimated during the reduction and listed in the image header. Furthermore, one can also commit a radial velocity and the wavelength is shifted by this value.
The syntax is:
function readheros(file [, radvel=Value, barycorr=no, small=yes])
Input:
file: Name of the fits file
Optional:
radvel: Radial velocity [km/s]
barycorr: If one set no than the radial velocity and barycentric correction are not performed
small: One use small=yes if one read the small fits file
Returns:
For a spectrum from 1 exposure and from more than 1 where the single images are co-add:
result[0]: Header of the image
result[1]: Header of the spectrum
result[2]: Array of the wavelength of each order
result[3]: Array of the blaze normalised spectrum of each order
result[4]: Array of the blaze function (flat field spectrum) of each order
result[5]: Array of the signal to noise of each order
result[6]: Array of the normalised spectrum of each order
result[7]: Array of the merged wavelength
result[8]: Array of the merged blaze normalised spectrum
result[9]: Array of the error of the merged blaze normelised spectrum
result[10]: Array of the merged normalised spectrum
result[11]: Array of the error of the merged normalised spectrum
result[12]: Array of the global response curve
result[13]: Array of the correction of the small scale variations in the spectrum
For a spectrum from more than 1 exposure and the single spectra are available:
result[0]: Header of the spectrum
result[1]: Header of the image
result[2]: Array of the wavelength of each order
result[3]: Array of the blaze normalised spectrum of each order
result[4]: Array of the blaze function (flat field spectrum) of each order
result[5]: Array of the signal to noise of each order
result[6]: Array of the normalised spectrum of each order
result[7]: Array of the spectrum of each exposure and each order
result[8]: Array of the merged wavelength
result[9]: Array of the merged blaze normalised spectrum
result[10]: Array of the error of the merged blaze normelised spectrum
result[11]: Array of the merged normalised spectrum
result[12]: Array of the error of the merged normalised spectrum
result[13]: Array of the global response curve
result[14]: Array of the correction of the small scale variations in the spectrum
For the small fits file:
result[0]: Header of the spectrum
result[1]: Array of the wavelength
result[2]: Array of the spectrum
Example: