SIMBAD references

2008MNRAS.385.2261D - Mon. Not. R. Astron. Soc., 385, 2261-2268 (2008/April-3)

The iron abundance of the Magellanic Bridge.

DUFTON P.L., RYANS R.S.I., THOMPSON H.M.A. and STREET R.A.

Abstract (from CDS):

High-resolution Hubble Space Telescope ultraviolet spectra for five B-type stars in the Magellanic Bridge and in the Large (LMC) and Small (SMC) Magellanic Clouds have been analysed to estimate their iron abundances. Those for the Clouds are lower than estimates obtained from late-type stars or the optical lines in B-type stars by approximately 0.5 dex. This may be due to systematic errors possibly arising from non-local thermodynamic equilibrium (non-LTE) effects or from errors in the atomic data, as similar low Fe abundances have previously been reported from the analysis of the ultraviolet spectra of Galactic early-type stars. The iron abundance estimates for all three Bridge targets appear to be significantly lower than those found for the SMC and LMC by approximately -0.5 and -0.8 dex, respectively, and these differential results should not be affected by any systematic errors present in the absolute abundance estimates. These differential iron abundance estimates are consistent with the underabundances for C, N, O, Mg and Si of approximately -1.1 dex relative to our Galaxy previously found in our Bridge targets. The implications of these very low metal abundances for the Magellanic Bridge are discussed in terms of metal deficient material being stripped from the SMC.

Abstract Copyright: ©2008 The Authors. Journal compilation © 2008 RASL

Journal keyword(s): stars: abundances - stars: early-type - galaxies: abundances - galaxies: interactions - Magellanic Clouds

Simbad objects: 18

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2008MNRAS.385.2261D and select 'bookmark this link' or equivalent in the popup menu