Publication
Title
The Belgian repository of fundamental atomic data and stellar spectra : atomic line data validation
Author
Abstract
BRASS is an international research project for the development of a new public database providing accurate fundamental atomic data of vital importance for stellar spectroscopic research. The BRASS database offers atomic line data thoroughly tested by comparing theoretical and observed stellar spectra. We perform quality assessments of selected atomic input data using advanced radiative transfer spectrum synthesis calculations, which are compared to high-resolution Mercator-HERMES and ESO-VLT-UVES spectra of FGK benchmark stars observed with very high signal-tonoise ratios. We have retrieved about half a million atomic lines required for our detailed spectrum synthesis calculations from the literature and online databases such as VAMDC, NIST ASD, VALD3, CHIANTI, TIPBASE, TOPBASE, Spectr-W3, and SpectroWeb. The atomic datasets are cross-matched based on transition line electronic configuration information and organized in a new repository. We present an overview of new BRASS Data Interface developments allowing online user interaction for the combined spectrum and atomic data display, line identification, atomic data accuracy assessments, and line equivalent width measurements.
Language
English
Source (journal)
WORKSHOP ON ASTROPHYSICAL OPACITIES
Source (book)
Workshop on Astrophysical Opacities, AUG 01-04, 2017, Western Michigan Univ, Foster Ctr, Western Michigan Univ, Foster Ctr, Kalamazoo, MI
Publication
San francisco : Astronomical soc pacific , 2018
ISBN
978-1-58381-914-2
978-1-58381-914-2
Volume/pages
515 (2018) , p. 255-262
ISI
000442055300031
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.10.2018
Last edited 16.09.2021
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