Using nebular spectra to reveal the progenitor and explosion mechanism of core-collpase supernovae

母核质量与爆炸动能的关系是揭示剥离包层核坍缩超新星爆炸机制的关键。在这项工作中，我们提出了一种方法来推导出这种关系，使用星云光谱的SESNe，基于[O I]/[Ca II]，这措施的祖质量，和[O I]宽度，这措施的膨胀速度的喷出物之间的相关性。使用流体动力学模拟，我们触发不同的动能和祖质量的爆炸。模型与观测结果进行了比较。我们发现所需的质量-能量标度关系来解释所观察到的质量-速度相关性。我们进一步证明了富氦和缺氦SNe遵循相同的质能标度关系。

The relation between the progenitor mass and the kinetic energy of the explosion is a key toward revealing the explosion mechanism of stripped-envelope (SE) core-collapse (CC) supernovae (SNe). In this work, we present a method to derive this relation using the nebular spectra of SESNe, based on the correlation between [O I]/[Ca II], which measures the progenitor mass, and [O I] width, which measures the expansion velocity of the ejecta. Using hydrodynamic simulations, we trigger explosions with different kinetic energy and progenitor mass. The models are compared with observation. We find the mass-energy scaling relation required to explain the observed mass-velocity correlation. We further demonstrate helium-rich and helium-deficient SNe follow the same mass-energy scaling relation.