Investigation of temperature and velocity fluctuations through the solar photosphere with the Na I D lines
Investigation of temperature and velocity fluctuations through the solar photosphere with the Na I D lines
复制标题
用 Na I D 线研究太阳光球层的温度和速度波动
DOI：
10.1051/0004-6361:20010464
复制
发表时间：
2001
影响因子：
6.5
通讯作者：
M. Faurobert
中科院分区：
文献类型：
--
作者：
M. T. Eibe;P. Mein;T. Roudier;M. Faurobert
在这项工作中，我们探索的诊断性质的Na I D共振线计算的响应函数的线proles在大气中的温度和速度扰动。我们提出了一种方法来转换光谱线强度波动测量在几个波长到温度和速度扰动在不同的高度水平。从几个理论模型的扰动做的测试结果进行了讨论。作为深度的线性函数变化的扰动被巧妙地再现。该方法也提供了良好的估计指数模型。作为一个例子，我们提出了一个应用程序获得的多通道减法双通（MSDP）光谱太阳颗粒数据。
In this work we explore the diagnostic properties of the Na I D resonance lines by calculating the response functions of their line proles to temperature and velocity perturbations in the atmosphere. We propose a method to transform spectral line intensity fluctuations measured at several wavelengths into temperature and velocity disturbances at dierent height levels. Results from tests done with several theoretical models of perturbations are discussed. Perturbations that vary as linear functions of depth are eciently reproduced. The method also provides good estimations for exponential models. As an example we present an application to solar granulation data obtained with Multichannel Subtractive Double Pass (MSDP) spectroscopy.