Espectroscopía atómica / molecular

• NIST Recommended Rest Frequencies for Observed Interstellar Molecular Microwave Transitions
• NIST Molecular Spectroscopic Data
• NIST Atomic Spectroscopy Data
• Leiden Atomic and Molecular Database (LAMDA)
• JPL Molecular Spectroscopy
• The Cologne Database for Molecular Spectroscopy (CDMS)
• Splatalogue: Database for Astronomical Spectroscopy
• High-resolution Transmission Molecular Absorption Database (HITRAN)
• IR spectral Databases
• The UMIST Database for Astrochemistry
• Jacques Crovisier Molecular Database
• IR Line lists for Atoms and Molecules
• Theoretical Spectral Database of Polycyclic Aromatic Hydrocarbons
• Atomic Data for Astrophysics
• astrochemistry.net

Coeficientes colisionales

• Basecol: Ro-vibrational collisional excitation database and utilities
• Collisional Rate Coefficients
• Molecular Collision Rates Relevant to Microwave and IR Astronomy

Códigos numéricos

• On-line Calculator for Molecular Line Strengths (RADEX)
• Monte Carlo Program for Molecular Radiative Transfer (RATRAN)
• Cassis Interactive Spectrum Analyzer