Molecular Emission Line Tool (MELT)
About This Tool
Open Source: This is an open-source web tool designed to make molecular line identification more efficient than searching the original publication. You can visit our GitHub repository to download everything or contribute to the project. I am still working on proofreading of the database (there is a lot of work), so a contribution is very welcome!
Purpose: This tool allows astronomers and laboratory spectroscopists to quickly filter and identify molecular emission lines. Users can filter elements and wavelength (frequency) range. For atomic emission lines, there is already a fantastic database the NIST Atomic Spectra Database, and a visualization platform the NIST LIBS Database
New Feature - Spectrum Visualization: You can now select multiple emission lines and generate an interactive example spectrum!
How to use: Enter the range of the line (or line group) you observed (a very small range is preferred), and choose the possible elements, click "Search Emission Lines". To generate a spectrum, check the boxes next to desired lines and click "Generate Spectrum". Adjust the peak width to simulate different instrumental resolutions. Please note that the intensity is relative, it is only comparable within the same system of a molecule/ion.
Cite this: If this tool is helpful in your research, please cite our work. How to cite?
Select Elements
Click once to include an element, click twice to exclude it, click again to reset. Click to exclude all other elements except the ones you have selected to include.
Search Results
Enter search parameters and click "Search Emission Lines" to find molecular emission lines.
Generated Spectrum
Selected lines: 0