Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0805.0308)
· References in the article
· Citations to the Article (15) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
The role of environment in the mass-metallicity relation
Authors:
Cooper, Michael C.; Tremonti, Christy A.; Newman, Jeffrey A.; Zabludoff, Ann I.
Affiliation:
AA(Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson AZ 85721, USA), AB(Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson AZ 85721, USA), AC(Department of Physics and Astronomy, University of Pittsburgh, 401-C Allen Hall, 3941 O'Hara Street, Pittsburgh PA 15260, USA), AD(Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson AZ 85721, USA)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 390, Issue 1, pp. 245-256. (MNRAS Homepage)
Publication Date:
10/2008
Origin:
MNRAS
MNRAS Keywords:
galaxies: abundances , galaxies: evolution , galaxies: fundamental parameters , galaxies: statistics , large-scale structure of Universe
DOI:
10.1111/j.1365-2966.2008.13714.x
Bibliographic Code:
2008MNRAS.390..245C

Abstract

Using a sample of 57377 star-forming galaxies drawn from the Sloan Digital Sky Survey, we study the relationship between gas-phase oxygen abundance and environment in the local Universe. We find that there is a strong relationship between metallicity and environment such that more metal-rich galaxies favour regions of higher overdensity. Furthermore, this metallicity-density relation is comparable in strength to the colour-density relation along the blue cloud. After removing the mean dependence of environment on colour and luminosity, we find a weak, though significant, residual trend between metallicity and environment which is largely driven by galaxies in high-density regions, such as groups and clusters. We discuss the potential source of this relationship between metallicity and local galaxy density in the context of feedback models, with special attention paid to quantifying the impact of environment on the scatter in the mass-metallicity relation. We find that environment is a non-negligible source of scatter in this fundamental relation, with >~15 per cent of the measured scatter correlated with environment.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints