论文标题
来自低质量的年轻恒星物体的情节弹射，由h $ _2 $ o masers追踪
Episodic ejection from a low-mass young stellar object traced by H$_2$O masers
论文作者
论文摘要
我们介绍了22 GHz H $ _2 $ o MASER的VLBI研究的项目，该项目在原型的低质量Protostellar系统IRAS IRAS 16293-2422中。进行观察是为了表征新发现的源中新发现的增强的Maser活性的原因，并研究了Maser发射所追溯的来源的射出行为。对档案数据的单次监控和分析表明，IRAS 16293-2422中H $ _2 $ o MASER的活动具有环状特征，并且可以追溯源中的情节弹射事件。最近在光谱特征中发现了一种新的maser耀斑，该光谱特征从未显示出磁通量密度的显着增加。此功能的耀斑似乎表明了新的活动周期的开始。
We present the project of a VLBI study of the 22 GHz H$_2$O maser in a prototypical low-mass protostellar system IRAS 16293-2422. The observation was conducted to characterise the cause of the newly discovered enhanced maser activity in the source and to study the source's ejection behaviour as traced by maser emission. Single-dish monitoring and analysis of archival data indicate that the activity of the H$_2$O maser in IRAS 16293-2422 has a cyclic character and traces episodic ejection events in the source. A new maser flare was recently discovered in a spectral feature that has never shown such a significant increase in flux density before. The flare of this feature seems to indicate the beginning of a new cycle of activity.
