论文标题
具有多个超级诞生的行星系统的出生群集模拟：白矮人污染驱动器的初始条件
Birth cluster simulations of planetary systems with multiple super-Earths: initial conditions for white dwarf pollution drivers
论文作者
论文摘要
先前的研究表明，怪异的超级赚钱代表了一类行星，这些行星在将小尸体运送到白色矮人方面特别有效，随后用可观察到的化学特征污染了它们的大气。但是，除了寄主恒星的几个天文单位之外，缺乏对这些行星的发现，这促使他们从新生的出生集群中更好地了解了它们的轨道架构。在这里，我们对最初圆形的共面轨道上的3星网和7星网系统进行了恒星集群模拟。我们采用白色矮人的主要序列祖细胞（$ 1.5 \，\ mathrm {m} _ {\ odot} $ - $ 2.5 \，\ m atrm {m mathrm {m} _ {\ odot} $）作为主机，并包括8,000个主序列sark a krouspa krousfa krousef clouseu clousca，我们的结果表明，到群集溶解时，大约30％的模拟行星产生至少0.1的偏心率，这将有助于白矮人污染。我们向社区提供输出参数，以作为后续演化模拟的初始条件的潜在用途。
Previous investigations have revealed that eccentric super-Earths represent a class of planets which are particularly effective at transporting minor bodies towards white dwarfs and subsequently polluting their atmospheres with observable chemical signatures. However, the lack of discoveries of these planets beyond a few astronomical units from their host stars prompts a better understanding of their orbital architectures from their nascent birth cluster. Here, we perform stellar cluster simulations of 3-planet and 7-planet systems containing super-Earths on initially circular, coplanar orbits. We adopt the typical stellar masses of main-sequence progenitors of white dwarfs ($1.5\,\mathrm{M}_{\odot}$-$2.5\,\mathrm{M}_{\odot}$) as host stars and include 8,000 main-sequence stars following a Kroupa initial mass function in our clusters. Our results reveal that about 30 per cent of the simulated planets generate eccentricities of at least 0.1 by the time of cluster dissolution, which would aid white dwarf pollution. We provide our output parameters to the community for potential use as initial conditions for subsequent evolution simulations.
