论文标题
质量积聚率与I类Protostars中的磁盘质量之间的关系
The relation between the Mass Accretion Rate and the Disk Mass in Class I Protostars
论文作者
论文摘要
为年轻的II类前序列星建立了质量积聚率与磁盘质量之间关系的证据。这一观察结果为测试理论模型并限制了磁盘形成的初始条件开辟了一条途径，这是理解行星系统出现的基础。但是，很明显，地球形成甚至在第二类阶段之前就开始在0级和我的原恒星周围的磁盘上。我们首次证明了质量积聚率与磁盘质量之间相关性的证据，该样本位于附近（<500 pc）恒星形成区域。我们适合样本，发现I类关系的关系比II级恒星具有平淡的斜率，并且具有更高的质量积聚率和磁盘质量。结果置于磁盘演化模型的背景下。
The evidence of a relation between the mass accretion rate and the disk mass is established for young, Class II pre-main sequence stars. This observational result opened an avenue to test theoretical models and constrain the initial conditions of the disk formation, fundamental in the understanding of the emergence of planetary systems. However, it is becoming clear that the planet formation starts even before the Class II stage, in disks around Class 0 and I protostars. We show for the first time evidence for a correlation between the mass accretion rate and the disk mass for a large sample of Class I young stars located in nearby (< 500 pc) star-forming regions. We fit our sample, finding that the Class I objects relation has a slope flatter than Class II stars, and have higher mass accretion rates and disk masses. The results are put in context of the disk evolution models.
