articleAstronomy and AstrophysicsAug 12, 2013BRONZE OA

The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and T e -based literature data

RAR. A. MarinoFFF. F. Rosales-OrtegaSFS. F. SánchezAGA. Gil de PazJMJ. M. Vı́lchez

Universidad Complutense de Madrid · Instituto de Geofísica y Astronomía · +18 more institutions

Indexed inarxivcrossrefdoaj

Abstract

The use of integral field spectroscopy is since recently allowing to measure the emission line fluxes of an increasingly large number of star-forming galaxies, both locally and at high redshift. Many studies have used these fluxes to derive the gas-phase metallicity of the galaxies by applying the so-called strong-line methods. However, the metallicity indicators that these datasets use were empirically calibrated using few direct abundance data points (T e -based measurements). Furthermore, a precise determination of the prediction intervals of these indicators is commonly lacking in these calibrations. Such limitations might lead to systematic errors in determining the gas-phase metallicity, especially at…

Citation impact

580
total citations
FWCI
21.04
Percentile
100%
References
124
Citations per year

Authors

34

Topics & keywords

Topics
Keywords
  • Abundance (ecology)
  • Calibration
  • Environmental science
  • Statistics
  • Physics
  • Mathematics
  • Ecology
UN Sustainable Development Goals
  • Life below water
No related works found for this paper.

Funding