Which Are the Youngest Protostars? Determining Properties of Confirmed and Candidate Class 0 Sources by Broadband Photometry
Which Are the Youngest Protostars? Determining Properties of Confirmed and Candidate Class 0 Sources by Broadband Photometry
复制标题
最年轻的原恒星有哪些？
DOI：
10.1086/426441
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
D. Froebrich
中科院分区：
文献类型：
--
作者：
D. Froebrich
我们检索了文献，以获得已知0级来源的完整列表。汇编了95个已确认或候选物体的清单。据我们所知，已收集了所有已发表的1 μm至3.5 mm宽带观测数据，并将其汇编成目录。这些数据用于确定物理性质（Tbol、Lbol、Lsmm/Lbol、Menv）和用于统一分类。50个源拥有足够的观测数据，被归类为0级或0/1级天体。源的性质与不同的演化模型进行比较，以推断年龄和质量，它们的相关性进行了研究。大约25%的源被发现是在一个安静的吸积阶段或拥有一个显着不同的时间演化的吸积率比平均水平。在金牛座，由于其孤立的星星形成模式，这似乎尤其如此。
We searched the literature to obtain a complete list of known Class 0 sources. A list of 95 confirmed or candidate objects was compiled. To the best of our knowledge, all published broadband observations from 1 μm to 3.5 mm have been collected and are assembled in a catalog. These data were used to determine physical properties (Tbol, Lbol, Lsmm/Lbol, Menv) and for a uniform classification. Fifty sources possess sufficient observational data and are classified as Class 0 or Class 0/1 objects. The source properties are compared with different evolutionary models to infer ages and masses, and their correlations are investigated. About 25% of the sources are found to be in a quiet accretion phase or possess a significantly different time evolution of the accretion rate than the average. In Taurus, with its isolated star formation mode, this seems especially to be the case.
影响因子：
3.2
作者：
V. Mannings;A. Boss;S. Russell
通讯作者：
V. Mannings;A. Boss;S. Russell