论文标题
太阳CME等离子体诊断为潜在的恒星CME特征
Solar CME Plasma Diagnostics Expressed as Potential Stellar CME Signatures
论文作者
论文摘要
太阳冠状质量弹出(CME)与尚未完全理解的太阳耀斑有很强的关联。我们太阳磁性活动的这种特征也可能发生在其他恒星上,但是缺乏成功检测到的恒星CMES使得很难进行统计研究,这可能会显示出CMES和Flares之间类似关联的统计研究。由于潜在的牢固关联,对恒星CME的搜索通常从成功地搜索磁性恒星上的超级流域开始。无论耀斑的存在如何,我们都强调了在尝试查找和确认出色的CME候选者时搜索CME特异性光谱特征的实用性。我们使用太阳能CME作为示例,说明了为什么同时检测到多种紫外线发射线可以基本上提高光谱镜发现的恒星CME候选者的信誉。我们可以预测明亮的CME相关发射线,如果它们源自遥远的恒星。我们建议使用三条发射线(C IV 1550埃埃斯特罗姆,O VI 1032 Angstroms和C III 977埃斯特罗姆),这是由于它们的潜在明亮信号和方便的诊断功能,可以用来确认观察性签名是否真正源自恒星CME。
Solar coronal mass ejections (CMEs) have a strong association with solar flares that is not fully understood. This characteristic of our Sun's magnetic activity may also occur on other stars, but the lack of successfully detected stellar CMEs makes it difficult to perform statistical studies that might show a similar association between CMEs and flares. Because of the potentially strong association, the search for stellar CMEs often starts with a successful search for superflares on magnetically active stars. Regardless of the flare's presence, we emphasize the utility of searching for CME-specific spectroscopic signatures when attempting to find and confirm stellar CME candidates. We use solar CMEs as examples of why a multitude of ultraviolet emission lines, when detected simultaneously, can substantially improve the credibility of spectroscopically discovered stellar CME candidates. We make predictions on how bright CME-related emission lines can be if they derived from distant stars. We recommend the use of three emission lines in particular (C IV 1550 Angstroms, O VI 1032 Angstroms, and C III 977 Angstroms) due to their potentially bright signal and convenient diagnostic capabilities that can be used to confirm if an observational signature truly derives from a stellar CME.