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The Evolution of Dust Disk Sizes from a Homogeneous Analysis of 1–10 Myr old Stars
The Astrophysical Journal ( IF 4.9 ) Pub Date : 2020-06-04 , DOI: 10.3847/1538-4357/ab70ba
Nathanial Hendler 1 , Ilaria Pascucci 1 , Paola Pinilla 2 , Marco Tazzari 3 , John Carpenter 4 , Renu Malhotra 1 , Leonardo Testi 5
Affiliation  

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.

中文翻译:

从 1-10 Myr 老恒星的同质分析中尘埃盘大小的演变

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 个原行星盘的尘埃盘大小。我们将我们的样本与来自 Tau/Aur 和 Oph 的 47 个圆盘相结合,它们的尘埃圆盘半径是估算的,如下所示,通过将径向剖面模型拟合到能见度数据。我们使用这 199 个均匀派生的磁盘大小来确定经验磁盘-磁盘和磁盘-主机属性关系以及搜索进化趋势。与之前的研究一致,我们发现尘埃盘大小和毫米光度是相关的,但首次表明这种关系在区域之间并不普遍。我们发现 2-3 Myr-old Cha I 中的圆盘不小于其他相似年龄区域的圆盘,并证实了 Barenfeld 等。(2017) 发现 5-10 Myr USco 磁盘比属于较年轻区域的磁盘小。最后,我们发现由柯伊伯带定义的太阳系外边缘与未经历显着截断的尘埃盘大小一致。
更新日期:2020-06-04
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