Author: Behrouz Safari
License: MIT
A python package for retrieving and analysing stellar spectra (ELODIE-SOPHIE Archive)
Install the latest version of stelspec from PyPI:
pip install stelspec
Requirements are requests, numpy and pandas.
Let's start by creating an Elodie instance by passing an object name:
import stelspec as sp
el = sp.Elodie('HD217014')You can access two tables, CCF and Spectra, as pandas DataFrame.
# table: Cross-Correlation Functions
df_ccf = el.ccf()
# table: Spectra
df_spc = el.spec()You can also download spectra as FITS file, whether in s1d or s2d format:
# download spectrum FITS file in s1d format
el.get_spec(dataset=19960831, imanum='0017', path='data/', s1d=True)
# download spectrum FITS file in s2d format
el.get_spec(dataset=19960831, imanum='0017', path='data/', s1d=Flase)The same process can be done for Sophie, except that instead of dataset and imanum, you should pass the seq number.
For a brief help on the structure of FITS files, see ELODIE and SOPHIE.