用$\texttt{ZeeTurbo}$约束大气参数和地面磁场：应用于SPIRou谱
Constraining atmospheric parameters and surface magnetic fields with $\texttt{ZeeTurbo}$: an application to SPIRou spectra
摘要：
我们报告的第一个结果的方法，旨在同时表征大气参数和磁特性的M矮星的高分辨率近红外光谱记录与SPIRou的框架下的SPIRou遗产调查。我们的分析依赖于拟合合成光谱计算从MARCS模型大气选定的光谱线，敏感和不敏感的磁场。我们介绍了一个新的代码，$\texttt{ZeeTurbo}$，包括塞曼效应和偏振辐射转移能力，$\texttt{Turbospectrum}$。我们计算网格的合成光谱与$\texttt{ZeeTurbo}$不同的磁场强度和开发的过程，同时限制$T_{\rm eff}$，$\log{g}$，[M/H]，[ $α$ /Fe]和平均表面磁通。在本文中，我们提出了我们的方法，并使用模拟评估其性能，然后将其应用到六个目标的SPIRou遗产调查（SLS）的背景下，即AU麦克风，EV湖，AD狮子座，CN狮子座，PM J18482+0741，和DS狮子座观察。我们的方法使我们能够检索大气参数与文献吻合良好，同时产生表面磁通量在2-4千克的范围内，典型的精度为0.05千克，与文献估计一致，并与饱和发电机制度，其中大多数这些恒星是一致的。
英文摘要：
We report first results on a method aimed at simultaneously characterising atmospheric parameters and magnetic properties of M dwarfs from high-resolution nIR spectra recorded with SPIRou in the framework of the SPIRou Legacy Survey. Our analysis relies on fitting synthetic spectra computed from MARCS model atmospheres to selected spectral lines, both sensitive and insensitive to magnetic fields. We introduce a new code, $\texttt{ZeeTurbo}$, obtained by including the Zeeman effect and polarised radiative transfer capabilities to $\texttt{Turbospectrum}$. We compute a grid of synthetic spectra with $\texttt{ZeeTurbo}$ for different magnetic field strengths and develop a process to simultaneously constrain $T_{\rm eff}$, $\log{g}$, [M/H], [$α$/Fe] and the average surface magnetic flux. In this paper, we present our approach and assess its performance using simulations, before applying it to six targets observed in the context of the SPIRou Legacy Survey (SLS), namely AU Mic, EV Lac, AD Leo, CN Leo, PM J18482+0741, and DS Leo. Our method allows us to retrieve atmospheric parameters in good agreement with the literature, and simultaneously yields surface magnetic fluxes in the range 2-4 kG with a typical precision of 0.05 kG, in agreement with literature estimates, and consistent with the saturated dynamo regime in which most of these stars are.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
