Planets around F stars, which are hotter than our G-class Sun, have peak PFD in the blue. K-star planets peak in the red-orange. Because of their abundance visible radiation, F- and K-star planets are likely to have very similar photosynthesis to that on Earth, with slight variation in the dominant visible color. M-star planets, however, peak in the near infrared and have very little visible light. Because mature M stars past their UV flaring stage will not produce UV radiation at damaging levels to organisms, anoxygenic photosynthesis in the NIR could have the competitive advantage on land.
Densidades de flujo de fotones (PFD) para la Tierra (línea amarilla) y otros planetas similares alrededor de estrellas de tipo F (más calientes que el Sol) y de varios tipos K y M (más frías).
¿Bienvenidos a Sirio?
Para que quede claro, he fusilado esta tabla que he visto en este blog tan curioso:
Tipo Estelar | Color principal usado en la fotosíntesis | Colores de las Plantas |
Más caliente que el Sol | azul | blanco (para prevenir saturación de los pigmentos) o verde-amarillo-naranja |
Similar al Sol | rojo | verde-amarillo-naranja |
Más fría que el Sol | rojo | verde-amarillo-naranja |
Enana Roja | toda la luz visible, | negro |
infrarrojo, | gris-blanco | |
o amarillo-rojo | púrpura, colores varios |
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