How to Run HELIOS++ Surveys with the Helios Launcher HELIOS++ is a powerful radiative transfer model used for exoplanet atmospheres, and running it efficiently often requires managing complex input parameters across multiple simulations. The Helios Launcher provides a user-friendly interface designed to streamline this process, allowing researchers to set up and execute HELIOS++ surveys (multiple runs) with ease.
This guide outlines how to use the launcher to manage, configure, and execute your HELIOS++ simulations. 1. Prerequisites
Before running surveys, ensure you have the following installed: HELIOS++: The core radiative transfer model.
Helios Launcher: The graphical user interface to manage simulation inputs and execution.
Input Files: Required files such as planetary atmospheric profiles, stellar spectrum files, and opacity tables. 2. Launching and Configuring the Survey
The Helios Launcher serves as the interface between your input parameters and the HELIOS++ engine.
Open the Helios Launcher: Open the application to access the survey configuration interface.
Define the Input Files: Select the necessary input files (.json, .h5, or .dat files) required for your study. This includes: Planetary atmosphere structure. Stellar spectrum.
Configure Survey Parameters: In the launcher, set the range of parameters you wish to explore. This could include varying: Atmospheric composition (e.g., changing opacity files). Planetary temperature profiles (P-T profiles). Incident stellar flux.
Set Output Directories: Define where the resulting spectrum and temperature structure files will be saved. 3. Running the Simulation Once the parameters are set within the launcher:
Validate Inputs: Use the launcher’s validation tool to ensure all input files and paths are correct.
Execute the Survey: Click the “Run” or “Start” button. The launcher will automatically manage the sequential or parallel execution of the HELIOS++ runs, depending on your machine’s capabilities.
Monitor Progress: The interface provides real-time updates on which simulation is currently running and the percentage completion of the overall survey. 4. Post-Processing
After the launcher completes the survey, the data will be located in the output folder you specified. You can then analyze the resulting data, such as: Comparing different chemical compositions. Analyzing output spectra using provided Python scripts.
For more advanced setups, such as using custom opacity tables or coupling to photochemical kinetics, consult the detailed HELIOS 3.0 Documentation. If you’d like, I can: Provide a template for the config.json files needed. Explain how to use command-line scripting for automation. Explain the required file formats for input data.
Let me know how you’d like to proceed with setting up your survey. Tutorial — HELIOS 3.0 documentation – Read the Docs