Long-lived giant cells detected at the surface of the Sun

J. G. Beck; T. L. Duvall Jr; P. H. Scherrer

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Long-lived giant cells detected at the surface of the Sun

机译：在太阳表面发现了长寿的巨型细胞

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Giant convective cells have been predicted to exist in the Sun. Such cells should span the entire zone unstable to convective motions -now known to cover the outer 29 per cent of the Sun's radius- and could be dredging up the magnetic flux that is thought to be the source of solar activity (sunspots). Several studies have failed to detect these giant cells, although there have been hints of their existence. We have detected long-lived velocity cells, which we identify as the elusive giant convective cells, extending over 40-50 degrees of longitude but less than 10 degrees of latitude. The large aspect ratio ( > 4) is surprising (although predicted by one model) and may be a consequence of the Sun's differential rotation, whereby features with a larger extent in latitude are broken up by rotational shear.

机译：据预测，巨大的对流细胞将存在于太阳中。这种电池应该跨越对流运动不稳定的整个区域（目前已知对流运动覆盖太阳半径的29％），并可能疏通被认为是太阳活动（太阳黑子）来源的磁通量。尽管有迹象表明存在这些巨细胞，但一些研究未能检测到这些巨细胞。我们已经检测到长寿命的速度细胞，我们将其识别为难以捉摸的巨型对流细胞，它们延伸的经度超过40-50度，但纬度小于10度。大的宽高比（> 4）是令人惊讶的（尽管是通过一种模型预测的），并且可能是太阳旋转差的结果，因此纬向范围较大的要素会由于旋转剪切而破裂。

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《Nature》 |1998年第6694期|p.653-655|共3页
作者
J. G. Beck; T. L. Duvall Jr; P. H. Scherrer;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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Long-lived giant cells detected at the surface of the Sun

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