Welcome to the complete beginner’s guide to Exostriker!
Transit and Radial velocity Interactive Fitting tool for Orbital analysis and N-body simulations: The Exo-Striker.
The Exo-Striker analyzes exoplanet orbitals, performs N-body simulations, and models the RV stellar reflex motion caused by dynamically interacting planets in multi-planetary systems. It offers a broad range of tools for detailed analysis of transit and Doppler data, including power spectrum analysis for Doppler and transit data, Keplerian and dynamical modeling of multi-planet systems, MCMC and nested sampling, Gaussian Processes modeling, and a long-term stability check of multi-planet systems. The Exo-Striker can also perform Mean Motion Resonance (MMR) analysis, create fast fully interactive plots, and export ready-to-use LaTeX tables with best-fit parameters, errors, and statistics. It combines Fortran efficiency and Python flexibility and is cross-platform compatible (MAC OS, Linux, Windows).
Keplerian and Dynamical modeling of RV & Transit photometry exoplanet data.
RV signal and alias search: via GLS periodogram & maximum lnL periodogram (MLP).
Activity index signal search via GLS periodogram.
RVs vs. Activity time-series correlation analysis/plots.
RV auto-fit (RV automated planet-finder algorithm).
Transit signal search (via “TLS”).
Interactive transit photometry detrending (via “wotan”), interactive outlier removal, and more.
Linear models for detrending ground-based transit photometry.
GP modeling (via “celerite”).
Joint RVs + Transit + GPs best-fit optimization (internal Fortran Simplex and L-M minimizers, or many more via “SciPyOp”).
Joint RVs + Transit + GPs MCMC/Nested Sampling (via “emcee” & “dynesty”).
TTVs and/or joint TTVs + RVs analysis.
Fit for apsidal orbital precession, or apply General Relativity (GR) precession.
Long-term stability check of multiple planetary systems using SyMBA, MVS, and MVS with a GR precession.
Instant AMD stability check for multiple planetary systems (including during optimization or MCMC/Nested Sampling).
Multi-platform: It works on MAC OS (10.6+), Linux (Suse, Mint, Ubuntu, etc.) and Windows 10.
Import/Export of work sessions and multi-sessions.
Export plots to a matplotlib window for further customization.
Export ready to use LaTeX tables with best-fit parameters, errors, and statistics.
Print the GUI screen into a .jpeg/.png image (useful for sharing quick results).
Fully interactive, super-fast, high-quality, exportable plots.
Integrated Bash-shell (Linux only).
Integrated Jupyter shell.
Handy “cornerplot” GUI control.
Instant online access to the “RVBank” database (over 212 000 RVs and activity indices of about 3000 HARPS stars & over 64 000 RVs and activity indices of about 1700 HIRES stars).
Handy text-editor and calculator tools.
Direct import of TESS lc.fits and CHEOPS SCI_COR.fits files.
Importable as a standard python library (i.e., “import exostriker”).
What is to be implemented
Larger arsenal of N-body/dynamical simulation/analysis tools (+ “REBOUND” is planned to be included).
Internal TTV and photo-dynamical modeling (i.e. the external “TTVFast” will become a secondary option).
Swap “celerite” with “celerite2” (the dSHO kernel from “celerite2” is available).
Combined modeling with Astrometry (work in progress).
Trifon Trifonov, MPIA Heidelberg.
with contributions by Mathias Zechmeister, Jakub Morawski, Man Hoi Lee, Stefan Dreizler, Grigorii Smirnov-Pinchukov, Stephan Stock, Jonas Kemmer and Harry Psarakis.