并行坍缩的行星形成
Planet Formation by Concurrent Collapse
摘要：
在回顾了传统的行星形成理论（基于微观尘埃颗粒的聚集）所面临的困难之后，我们描述了一个替代假设。我们认为行星是通过引力坍缩与它们所围绕的恒星同时形成的。这种“并发崩溃”的假设避免了与传统模型相关的理论困难，并提出了令人满意的解释，各种鲜为人知的现象。我们介绍了新的解释FU Orionis爆发看到年轻的恒星，发现外行星偏心轨道和存在的小岩石物体，如球粒在太阳系中。
英文摘要：
After reviewing the difficulties faced by the conventional theory of planet formation (based upon the aggregation of microscopic dust particles), we describe an alternative hypothesis. We propose that planets form by gravitational collapse at the same time as the star about which they orbit. This 'concurrent collapse' hypothesis avoids theoretical difficulties associated with the conventional model and suggests satisfying explanations for various poorly understood phenomena. We introduce new explanations for FU Orionis outbursts seen in young stars, the discovery of exoplanets with eccentric orbits and the existence of small rocky objects such as chondrules in the solar system.
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