期刊
ASTROPHYSICAL JOURNAL
卷 734, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/734/2/81
关键词
magnetohydrodynamics (MHD); stars: oscillations; Sun: atmosphere; Sun: corona; Sun: oscillations; waves
资金
- Science and Technology Facilities Council (STFC) [ST/F002769/1]
- Royal Society University
- Science and Technology Facilities Council [ST/H001964/1, ST/F002769/1] Funding Source: researchfish
- STFC [ST/F002769/1, ST/H001964/1] Funding Source: UKRI
Spectroscopic and stereoscopic imaging observations of slow magnetoacoustic wave propagation within a coronal loop are investigated to determine the decay length scale of the slow magnetoacoustic mode in three dimensions and the density profile within the loop system. The slow wave is found to have an e-folding decay length scale of 20,000(-3000)(+4000) km with a uniform density profile along the loop base. These observations place quantitative constraints on the modeling of wave propagation within coronal loops. Theoretical forward modeling suggests that magnetic field line divergence is the dominant damping factor and thermal conduction is insufficient, given the observed parameters of the coronal loop temperature, density, and wave mode period.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据