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Generación de espículas solares y posterior calentamiento atmosférico

Tanmoy Samanta¹, Hui Tian², Vasyl Yurchyshyn³

¹School of Earth and Space Sciences, Peking University, Beijing 100871, People's Republic of China.

Science (New York, N.Y.)

|November 16, 2019

Resumen

Pequeños chorros solares llamados espículas emergen de la superficie del Sol, impulsados por las interacciones del campo magnético. Estos eventos están relacionados con el calentamiento de la atmósfera superior del Sol, la corona.

Área de la Ciencia:

Física solar
Astrofísica del plasma
Magnetohidrodinámica

Sus antecedentes:

Las espículas son chorros de plasma dinámicos y de escala fina observados en la cromosfera solar.
El origen y el papel de calentamiento atmosférico de las espículas siguen siendo poco conocidos.
Comprender las espículas es crucial para comprender la dinámica atmosférica solar.

Objetivo del estudio:

Para investigar el origen de las espículas solares.
Para determinar el papel de las espículas en el calentamiento de la atmósfera solar.
Para explorar la relación entre la dinámica del campo magnético y la formación de espículas.

Principales métodos:

Observaciones con el Telescopio Solar Goode en el Observatorio Solar Big Bear.
Análisis de la emergencia del flujo magnético y la actividad del espículo.
Correlación de los eventos de espículas con el calentamiento de la corona solar utilizando datos del Observatorio de Dinámica Solar.

Principales resultados:

Las espículas surgieron poco después de la aparición del flujo magnético de polaridad opuesta.
Las interacciones del campo magnético, probablemente la reconexión magnética, se observaron en la atmósfera solar inferior.
Se detectaron eventos de calentamiento en la corona solar después de la aparición de la espícula.

Conclusiones:

La dinámica del campo magnético en la atmósfera solar parcialmente ionizada genera espículas.
La generación de espículas está vinculada al calentamiento de la corona solar.
Este estudio proporciona información sobre los mecanismos que impulsan el calentamiento atmosférico solar.

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