Method for tilt correction of calibration lines in high-resolution spectra.

@article{Das2021MethodFT,
  title={Method for tilt correction of calibration lines in high-resolution spectra.},
  author={Tanya Das and Ravinder K. Banyal},
  journal={Applied optics},
  year={2021},
  volume={60 31},
  pages={
          9906-9914
        }
}
Technological advancement has led to improvement in the design capabilities of astronomical spectrographs, allowing for high-precision spectroscopy, thereby expanding the realms of observational astronomy. High-resolution spectrographs use echelle gratings that operate in higher orders, giving more detailed spectra. Often, curvature and tilted lines are observed in the spectra, arising due to the design trade-offs of the respective spectrographs. Removal of these artifacts can help avoid wrong… 

References

SHOWING 1-10 OF 38 REFERENCES

Optimal extraction of echelle spectra: Getting the most out of observations

TLDR
The mathematical algorithms and examples of their application to the optimal extraction and the following reduction steps for echelle spectrometers equipped with an entrance slit, that is imaged with various distortions, such as variable tilt and curvature are presented.

Using a passively stabilized Fabry-Perot etalon for determining instrumental artifacts in a spectrograph

Precision Doppler spectroscopy serves as an important tool for Radial Velocity (RV) measurements by observing Doppler shift in the stellar spectrum, which are used for various applications. Passively

Development of a stabilized Fabry-Perot based wavelength calibrator for precision Doppler spectroscopy

Precision Doppler spectroscopy serves as an important tool for Radial Velocity (RV) observations of stars. High precision spectroscopy is bound by two major challenges, first being the instrument

Development of a stabilized Fabry–Perot etalonbased calibrator for Hanle echelle spectrograph

Accurate wavelength calibration is an important factor for any measurement with high resolution spectrographs. Stellar spectrum comprises of discrete absorption or emission lines whose position is

Stability analysis of VBT Echelle spectrograph for precise radial velocity measurements

A fiber-fed Echelle spectrograph at 2.3 m Vainu Bappu Telescope (VBT), Kavalur, has been in operation since 2005. Owing to various technological advancements in precision spectroscopy in recent

PRECISION RADIAL VELOCITIES WITH AN IODINE ABSORPTION CELL

We have used gaseous iodine for generating reference absorption lines in stellar spectra taken at high resolution. A major advance involves the use of a fast echelle spectrograph and a 2048X2048 CCD

A Fabry-Perot calibrator of the HARPS radial velocity spectrograph: performance report

The radial velocity (RV) technique has pushed the planet detection limits down to super-earths. To reach the precision required to detect earth-like planets it is necessary to reach a precision

CERES: A Set of Automated Routines for Echelle Spectra

We present the Collection of Elemental Routines for Echelle Spectra (CERES). These routines were developed for the construction of automated pipelines for the reduction, extraction, and analysis of

X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope

X-shooter is the first 2nd generation instrument of the ESO Very Large Telescope(VLT). It is a very efficient, single-target, intermediate-resolution spectrograph that was installed at the Cassegrain

Data Reduction with the MIKE Spectrometer

TLDR
The design and implementation of an IDL based data-reduction pipeline for MIKE data (since generalized to other echelle spectrometers, e.g. Keck/HIRES, VLT/UVES).