论文标题
通过距螺旋臂的距离来限制IA类型超新星
Constraining Type Ia supernovae via their distances from spiral arms
论文作者
论文摘要
我们使用我们对附近臂的SN距离的原始测量值进行了对77个超新星（SNE）IA相对于其SAB-SCD宿主星系的分布的分析，并研究了其光曲线下降速率（$ΔM_{15} $）。对于具有突出螺旋臂的星系，我们表明位于手臂上的SNE IA的$ΔM_{15} $值通常比SNE INA INA IA（更快下降）小（较慢的下降）。我们证明，距螺旋臂及其半半径的SN IA距离是相关的：平均旋律半径和之后，SNE IA分别位于螺旋臂的内部和外边缘（冲击前部）附近。我们第一次发现$Δm_{15} $值与距离武器冲击阵线（祖先出生地）之间的SN距离之间存在显着相关性，这在亚chandrasekhar-Mass White Dwarf爆炸模型和密度波浪理论的框架中进行了解释，分别与$δm_ ^ $Δm_ ^ $ quamer extimor，以及分别与δm_ ^ $ quamer的距离进行了解释。 （终生）指标。
We present an analysis of the distribution of 77 supernovae (SNe) Ia relative to spiral arms of their Sab-Scd host galaxies, using our original measurements of the SN distances from the nearby arms, and study their light curve decline rates ($Δm_{15}$). For the galaxies with prominent spiral arms, we show that the $Δm_{15}$ values of SNe Ia, which are located on the arms, are typically smaller (slower declining) than those of interarm SNe Ia (faster declining). We demonstrate that the SN Ia distances from the spiral arms and their galactocentric radii are correlated: before and after the average corotation radius, SNe Ia are located near the inner and outer edges (shock fronts) of spiral arms, respectively. For the first time, we find a significant correlation between the $Δm_{15}$ values and SN distances from the shock fronts of the arms (progenitor birthplace), which is explained in the frameworks of sub-Chandrasekhar-mass white dwarf explosion models and density wave theory, where, respectively, the $Δm_{15}$ parameter and SN distance from the shock front are appropriate progenitor population age (lifetime) indicators.
