Vanadium transitions in the spectrum of Arcturus Virtual Observatory Resource

Authors
  1. Wood M.P.
  2. Sneden C.
  3. Lawler J.E.
  4. Den Hartog E.A.
  5. Cowan J.J.
  6. Nave G.
  7. Published by
    CDS
Abstract

We derive a new abundance for vanadium in the bright, mildly metal-poor red giant Arcturus. This star has an excellent high-resolution spectral atlas and well-understood atmospheric parameters, and it displays a rich set of neutral vanadium lines that are available for abundance extraction. We employ a newly recorded set of laboratory FTS spectra to investigate any potential discrepancies in previously reported V I log(gf) values near 900nm. These new spectra support our earlier laboratory transition data and the calibration method utilized in that study. We then perform a synthetic spectrum analysis of weak V I features in Arcturus, deriving log{epsilon}(V)=3.54+/-0.01 ({sigma}=0.04) from 55 lines. There are no significant abundance trends with wavelength, line strength, or lower excitation energy.

Keywords
  1. atomic-physics
  2. chemical-abundances
  3. giant-stars
  4. spectroscopy
  5. visible-astronomy
  6. infrared-astronomy
Bibliographic source Bibcode
2018ApJS..234...25W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/234/25
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/234/25
Document Object Identifer DOI
doi:10.26093/cds/vizier.22340025

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/234/25
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/234/25
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/234/25
IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2018-08-30T10:00:51Z
Resource record created
2018-08-30T10:00:51Z
Created
2018-10-22T07:58:30Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr