DECH: Software Package for Astronomical Spectral Data Processing and Analysis

Abstract

The article provides a brief description of the software package DECH for processing and analysis of astronomical spectra. DECH supports all stages of processing and analysis of spectral data, including image preprocessing, spectra extraction (including those with a variable tilted slit), wavelength calibration by a two-dimensional polynomial, continuum normalization (manual or automatic), measurement of equivalent widths and radial velocities in various ways, cross-correlation analysis, etc. The DECH software package is actively used by astronomers from different countries and continues to be improved. In particular, utilities for processing and analysis of data from the high-resolution fiber-feed echelle spectrograph installed at 6-m telescope of Special Astrophysical Observatory of Russian Academy of Sciences were added in the latest version. Software provides high-precision measurements of radial velocities, including those for detection of extraterrestrial planets.

15 pages, 9 figures

References in corpus (5)

• Molecfit: A general tool for telluric absorption correction. I. Method and application to ESO instruments
• Correcting for Telluric Absorption: Methods, Case Studies, and Release of the TelFit Code
• Remarks on statistical errors in equivalent widths
• Hyperfine Splitting in the VALD Database of Spectral-line Parameters
• C${}_{60}^{+}$ - looking for the bucky-ball in interstellar space

Cited by in corpus (5)

• Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
• Influence of departures from LTE on determinations of the sulfur abundances in A-K type stars
• On the intrinsic rest wavelengths of diffuse interstellar bands
• A critical evaluation of the elemental abundances and evolutionary status of 15 Vul (HD 189849): The first identification of an evolved Am star
• CO second overtone line variability in three carbon-rich early post-AGB stage stars