Optical ray tracing of echelle spectrographs applied to the wavelength solution for precise radial velocities
Journal of Astronomical Telescopes, Instruments, and Systems(2024)
摘要
We present , a ray tracing software package that computes the
path of rays through echelle spectrographs. Our algorithm is based on
sequential direct tracing with Seidel aberration corrections applied at the
detector plane. As a test case, we model the CARMENES VIS spectrograph. After
subtracting the best model from the data, the residuals yield an rms of 0.024
pix, setting a new standard to the precision of the wavelength solution of
state-of-the-art radial velocity instruments. By including the influence of the
changes of the environment in the ray propagation, we are able to predict
instrumental radial velocity systematics at the 1 m/s level.
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