Opacities of S-type Stars: The Singlet B1-X1+, B1-A1, and C1+-X1+ Band Systems of ZrO
ASTROPHYSICAL JOURNAL(2024)
摘要
The ZrO B-1 Pi-X-1 Sigma(+), B-1 Pi-A(1)Delta, and C-1 Sigma(+)-X-1 Sigma(+) band systems are important opacity sources in the near-infrared and optical spectra of S-type stars. A total of 21 rovibronic bands with v '' <= 7 and v' <= 5 were observed and fit for the B-1 Pi-X-1 Sigma(+) transition, five bands for the (ZrO)-Zr-90 B-1 Pi-A(1)Delta transition and one band for the (ZrO)-Zr-90 C-1 Sigma(+)-X-1 Sigma(+) transition. All band systems were analyzed using high-temperature, high-resolution emission spectra collected at the National Solar Observatory (Kitt Peak). A modern spectroscopic analysis was performed using the PGOPHER program to provide updated spectroscopic constants. In general, we improve the accuracy of the line positions reported in the literature and slightly extend the vibrational analysis. Equilibrium molecular constants were then derived and combined with new ab initio calculations of transition dipole moment functions to produce line lists with line strengths.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要