Atmosphere concept
Atmospheric Metallicity & C/O Ratio
The enrichment of an atmosphere in elements heavier than hydrogen and helium, and the ratio of carbon to oxygen within it. These quantities are more than bookkeeping: because different ices and gases condense at different distances in the disk, a planet's measured metallicity and C/O ratio carry a fingerprint of where and how it formed.
Highlights
- ›A composition fingerprint of where a planet formed
Methods, worlds & facilities
Across exoplanet science
Knowledge connections
- Associated withAtmospheric Retrieval
- Associated withAtmospheric Retrieval
- Associated withThe Snow Line
- Associated withStellar Metallicity
- Associated withThe Snow Line
- Associated withAriel (exoplanet mission)
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.