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

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2
Q

Types of exoplanetary biosignatures?

A
  • gaseous
  • surface
  • temporal
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3
Q

What are the strongest biosignatures for exoplanets?

A

oxidizing and reducing gases

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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

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