Optical ray tracing of echelle spectrographs applied to the wavelength solution for precise radial velocities
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866913336707252224 |
|---|---|
| author | Pinto, Marcelo Tala Kaminski, Adrian Quirrenbach, Andreas Zechmeister, Mathias |
| author_facet | Pinto, Marcelo Tala Kaminski, Adrian Quirrenbach, Andreas Zechmeister, Mathias |
| contents | We present $\texttt{moes}$, 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_19691 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Optical ray tracing of echelle spectrographs applied to the wavelength solution for precise radial velocities Pinto, Marcelo Tala Kaminski, Adrian Quirrenbach, Andreas Zechmeister, Mathias Instrumentation and Methods for Astrophysics We present $\texttt{moes}$, 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. |
| title | Optical ray tracing of echelle spectrographs applied to the wavelength solution for precise radial velocities |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2404.19691 |