论文标题
1-10颗恒星的均匀分析中尘埃尺寸的演变
The evolution of dust-disk sizes from a homogeneous analysis of 1-10 Myr-old stars
论文作者
论文摘要
我们利用ALMA档案数据来估计狼疮（1-3 Myr），Chamaeleon I（2-3 Myr）和Upper-SCO（5-11 Myr）中152个原月球磁盘的尘埃尺寸。我们将样品与来自Tau/AUR和OPH的47个磁盘相结合，通过将径向轮廓模型拟合到可见性数据，估计了灰尘磁盘半径。我们使用这199个同质得出的磁盘大小来识别经验磁盘盘和磁盘 - 宿主关系关系以及寻找进化趋势。与以前的研究一致，我们发现灰尘磁盘的大小和毫米光度是相关的，但首次表明该关系之间的关系并不普遍。我们发现，在2-3 Myr Gord Cha中，磁盘不小于其他类似年龄区域的磁盘，并确认Barenfeld等人。 （2017年）发现5-10 Myr USCO磁盘比属于年轻地区的磁盘小。最后，我们发现由Kuiper带定义的太阳系的外边缘与尚未经历明显截断的尘埃尺寸的种群一致。
We utilize ALMA archival data to estimate the dust disk size of 152 protoplanetary disks in Lupus (1-3 Myr), Chamaeleon I (2-3 Myr), and Upper-Sco (5-11 Myr). We combine our sample with 47 disks from Tau/Aur and Oph whose dust disk radii were estimated, as here, through fitting radial profile models to visibility data. We use these 199 homogeneously derived disk sizes to identify empirical disk-disk and disk-host property relations as well as to search for evolutionary trends. In agreement with previous studies, we find that dust disk sizes and millimeter luminosities are correlated, but show for the first time that the relationship is not universal between regions. We find that disks in the 2-3 Myr-old Cha I are not smaller than disks in other regions of similar age, and confirm the Barenfeld et al. (2017) finding that the 5-10 Myr USco disks are smaller than disks belonging to younger regions. Finally, we find that the outer edge of the Solar System, as defined by the Kuiper Belt, is consistent with a population of dust disk sizes which have not experienced significant truncation.
