Description

NOT READY

The astro.binary package contain functions related to binary stars including eclipsing binary, spectroscopic binaries, and astrometric binaries.

Related tools are available in celestial.Kepler and celestial.OrbitalEl.

Functions

• astro.binary.allFunList - Functions and Classes list for the astro.binary package
• astro.binary.astrometric_binary - Predict astrometric binary position
• astro.binary.binary_reflection_effect - reflection effect from a star with unit illumination on mirror
• astro.binary.binary_rv - Binary star radial velocity (RV)
• astro.binary.chi2_astrometric_binary - Find astrometric binary elements from observations
• astro.binary.coalescence_gw_time - Calculate the coalescence time for binary stars due to GW emission
• astro.binary.eb_demo - GUI Eclipsing Binary light-curve demo.
• astro.binary.eb_light_curve - Eclipsing binary light curve as a function of time.
• astro.binary.equipot - Calculate the gravitational potential of a binary star on a grid.
• astro.binary.fit_astrometric_binary - Fit an elliptical-orbit binary orbit to astrometric data.
• astro.binary.fit_rv_ellipse - Fit radial velocity to an ellipse as a function of period
• astro.binary.limb_darkening - Limb darkening function
• astro.binary.obstruction - Stellar obstruction due to the eclipse
• astro.binary.plot_eb_lc - Plot eclipsing binary light curve as a function of time.
• astro.binary.plot_eb_lc_ph - Plot eclipsing binary light curve as a function of phase.
• astro.binary.rv2ellipse - Convert radial velocity as a function of time to ellipse
• astro.binary.total_light - Primary total light given its radius and limb darkening.
• astro.binary.unitTest - Package Unit-Test

Examples

Eclisping binaries

Spectroscopic binaries

Astrometric binaries

To plot the orbit of astrometric binary as a function of time:

[Orbit,Par]=astro.binary.astrometric_binary;
plot(Orbit.X,Orbit.Y,'.');

See the function help to control the orbital elements.