巨行星形成与大气组成的定量关联
Quantitative Links between Formation and Atmospheric Composition for Giant Planets
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中文总结 AI 辅助
本文提出定量框架关联巨行星大气组成与吸积历史，推导了最小原行星盘质量估计值，并附带开源代码，为行星形成研究提供方法支持。
中文摘要 AI 辅助
系外巨行星的精确大气丰度测量日益普及，亟需将这些测量结果系统转化为能反映行星吸积历史的指标。本文提出了一个将大气组成与金属及原生气吸积关联起来的定量框架，其中包括：i）简化并推广大气金属丰度与金属质量分数之间联系的新关系；ii）推断金属来源并量化不同来源吸积金属量的方法；iii）将推导得到的量与形成模型的预期相关联。我们还基于行星吸积的过量金属量（假设该过量金属源于 pebble 在凝结前沿的漂移与蒸发），推导了形成行星系统所需最小原行星盘质量的新估计值。本文附带实现了上述方法的开源代码。
英文摘要
Precise atmospheric abundances of giant exoplanets are becoming increasingly prevalent and there is a need to systematically convert these measurements into metrics that inform us about the planets' accretion history. We present a quantitative framework for relating atmospheric composition to the accretion of metals and primordial gas. This includes i) new relations that simplify and generalize the connection between atmospheric metallicity and metal mass fraction, ii) methods for inferring the source of the metals and quantifying the quantity of metals accreted via different sources, and iii) relating the derived quantities to expectations from formation models. We also derive a new estimate of the minimum disk mass needed to form a planetary system based on the amount of excess metals accreted by a planet, assuming that this excess originates from the drift and evaporation of pebbles at condensation fronts. This paper is accompanied by an open-source code that implements the methods presented herein.
发表机构
- University of California, Santa Cruz（加利福尼亚大学圣克鲁兹分校）
机构由 AI 辅助整理，请以论文原文为准。
