Characterization method
High-Resolution Cross-Correlation Spectroscopy
A ground-based technique that resolves thousands of individual spectral lines and uses the planet's changing Doppler shift along its orbit to separate its light from the star's and the Earth's atmosphere. Cross-correlating against molecular templates detects specific gases and even measures atmospheric winds; it is a headline science case for the coming extremely large telescopes.
Highlights
- ›Doppler-tracks molecular lines to isolate the planet's light
Methods, worlds & facilities
Knowledge connections
- Associated withRadial Velocity Method
- Associated withSpectroscopy
- Associated withExtremely Large Telescope
- Associated withGiant Magellan Telescope
- Associated withThirty Meter Telescope
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.