An estimation of the mass dragged by the solar wind from Mars’s atmosphere in its geologic history
DOI:
https://doi.org/10.22201/igeof.00167169p.2001.40.4.415Palabras clave:
Marte, viento solar, atmósfera marcianaResumen
En el pasado Marte tuvo una atmósfera más densa. Debido a la inexistencia de un campo magnético que protegiera la ionosfera y la exosfera del ataque del viento solar, éste erosionó la atmósfera marciana. Se propone un modelo que describe esta erosión a lo largo del tiempo geológico. Se concluye que: a) La cantidad de volátiles desgasificada en Marte fue del orden de 193.7 TAM (1 TAM = 1 Masa de la atmósfera terrestre = 5.28x1018 Kg). b) La cantidad de volátiles arrastrados por el viento solar, si la cronología larga es correcta, está en el intervalo de 0.472 a 1.89 TAM. c) La cantidad de volátiles arrastrados por el viento solar, si la cronología corta es correcta, está en el intervalo de 0.0624 a 0.25 TAM. d) La cantidad de volátiles arrastrada por el viento solar es mucho menor que la masa desgasificada. Por lo tanto, el arrastre ejercido por el viento solar no explica la mayor parte de los volátiles perdidos por Marte.
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