SpectroscopicBinarySystem 1.0.16

Python astronomy tools for spectroscopic binary system

Spectroscopic Binary System

Spectroscopic Binary System is a package intended to contain functionality and some common tools needed for performing astrophysics on spectroscopic binary stars with Python. It allows, among other things, to automatically measure the radial velocity of SB1 type systems and to find their orbital solution with BinaryStarSolver (https://github.com/NickMilsonPhysics/BinaryStarSolver)

Installation

mac/unix

  pip install spectroscopicbinarysystem

windows

  py -m pip install spectroscopicbinarysystem

Usage/Examples

Download sample data (see /examples/alphadra directory)

And run this code :

from spectroscopicbinarysystem import SpectroscopicBinarySystem

sbs = SpectroscopicBinarySystem(
    object_name='hd123299',
    spectra_path='./examples/alphadra/',
    t0=2451441.804,
    period_guess=51,
    conf={
        "LAMBDA_REF": 6562.82,
        "LINE_FIT_MODEL": "voigt",
        "LINE_FIT_WINDOW_WIDTH": 10,
        "LINE_FIT_CONT_NORM_EXCLUDE_WIDTH": 1.5,
        "LINE_FIT_FWHM": .5,
        "RV_CORR_TYPE": "barycentric",
        "SB_TYPE": 1
    },
    debug=True)

# plot result with matplotlib and save the results
sbs.plotRadialVelocityCurve(title="α Dra - HD123299 - Phased radial velocities", savefig=True)

# display result with plotly
sbs.plotlyRadialVelocityCurve(
    title="α Dra - HD123299 - Phased radial velocities")