Telluric correction

Telluric correction#

Description#

This sequence applies telluric correction to a time-series of 2D echelle spectra in ESO format.

First, put all files to be corrected within a directory of your choosing. You need to provide both the _S2D_A.fits and _S2D_BLAZE_A.fits files, which can be retrieved as explained here.

Then copy the configuration file as ANTARESS_settings_sequence.py in your working directory, and modify the following fields:

gen_dic['type'] = {instrument:'spec2D'}
gen_dic['data_dir_list'] = {instrument:{'all':data_path}}

Where instrument is the name of the spectrograph used to acquire your dataset, and data_path is the absolute path toward your dataset directory.

You can adjust more finely the correction settings with the fields available in the Telluric correction module.

The sequence can then be executed from your working directory as:

antaress --sequence tell_opti --custom_settings ANTARESS_settings_sequence.py

Procedure#

This sequence carries out the following reduction steps:

  • Data upload and formatting

  • Calibration and noise estimates

  • Telluric correction

Details about these steps can be found in the reduction tutorial.

Application#

TBD