Skip to main content

Doppler beaming simulation in binary systems.

Project description


Build Status Code License

This software generates a light curve of a binary system which is caused by the photometric beaming. For more details see arXiv:0708.2100. You can set up any configuration of a binary system seen from Earth.

Beaming visualization


The software was written in Python 3.4. To install it, please type from the command line:

$ sudo pip3 install bidobe

or alternatively:

$ git clone
$ cd binary-doppler-beaming
$ sudo python3 install

Additionally the software uses the following modules:

  • numpy
  • scipy
  • matplotlib

They can be easily installed too. Please run:

$ sudo pip3 install -r requirements.txt


All you need are the script and the binary.conf file. Edit the last one and configure your own binary system (see comments inside this file to find out which units are used):

mass1 = 1
mass2 = 2
temperature1 = 6000
temperature2 = 8000
radius1 = 1.0
radius2 = 1.5
distance = 1000

sum_major_axis = 8e10
eccentricity = 0.4
longitude_node = 70.0
inclination = 60.0
periastron_argument = 110.0

Now you can run the

$ python3

The main module bidobe (binary doppler beaming) provides the interface to display, save to files and animate orbits, radial velocities and light curves. Moreover, it allows to convert SI units from and to astronomical units. For example:

orbit1_position = orbit1.convert_m_to_au(orbit1_position)

converts position in meters to position in AUs. The following commands:

plot_projected_orbits(orbit1_position, orbit2_position, "AU", "AU")
plot_projected_orbits(orbit1_position, orbit2_position, "AU", "AU", "orbits.eps")
animate_projected_orbits(orbit1_position, orbit2_position, "AU", "AU")

can be used to display orbits projected on the sky, save them to orbits.eps file and animate them on the screen, respectively.

I encourage to visit my website to see more detailed description of this project. The current link can be found on my GitHub profile.


Binary-doppler-beaming is licensed under the MIT license.

Project details

Release history Release notifications

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
bidobe-0.1.0-py3-none-any.whl (9.4 kB) Copy SHA256 hash SHA256 Wheel py3
bidobe-0.1.0.tar.gz (8.3 kB) Copy SHA256 hash SHA256 Source None

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page