SIMBAD references

2011ApJ...735...71W - Astrophys. J., 735, 71 (2011/July-2)

Metal transport to the gaseous outskirts of galaxies.


Abstract (from CDS):

We present a search for outlying H II regions in the extended gaseous outskirts of nearby (D < 40 Mpc) galaxies and subsequent multi-slit spectroscopy used to obtain the H II region nebular oxygen abundances. The galaxies in our sample have extended H I disks and/or interaction-related H I features that extend well beyond their primary stellar components. We report oxygen abundance gradients out to 2.5 times the optical radius for these galaxies which span a range of morphologies and masses. We analyze the underlying stellar and neutral H I gas distributions in the vicinity of the H II regions to understand the physical processes that give rise to the observed metal distributions in galaxies. These measurements, for the first time, convincingly show flat abundance distributions out to large radii in a wide variety of systems and have broad implications for galaxy chemodynamical evolution.

Abstract Copyright:

Journal keyword(s): galaxies: abundances - galaxies: evolution - H II regions - ISM: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/ApJ/735/71): table1.dat table4.dat table5.dat table6.dat table7.dat table8.dat table9.dat table10.dat table11.dat table12.dat table13.dat table14.dat table15.dat table16.dat>

Nomenclature: Tables 4-16: [WPM2011] NGCNNNN NN, [WPM2011] UGCNNNN NN, N=108.

Simbad objects: 146

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2011ApJ...735...71W and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact