Exoplanet biosignatures Flashcards
1
Q
What happens when we directly image an exoplanet?
A
pixelated image but this can be used to look at the absorption and emission of light
2
Q
Types of exoplanetary biosignatures?
A
- gaseous
- surface
- temporal
3
Q
What are the strongest biosignatures for exoplanets?
A
oxidizing and reducing gases
4
Q
3 types of biosignatures for exoplanets
A
Type 1 - redox gradients which are oxidised and reduced reactants that are used in metabolic processes
Type 2 - biomass
Type 3 - secondary metabolic by products
