Academic Bibliography

 Search 200 years of publications by Ghent University researchers.
Advanced search
1 file | 1.54 MB
Add to list
  1. Search results
  2. Elemental abundances and ages of z ∼ ...

Elemental abundances and ages of z ∼ 0.7 quiescent galaxies on the mass–size plane : implication for chemical enrichment and star formation quenching

Aliza G. Beverage, Mariska Kriek, Charlie Conroy, Rachel Bezanson, Marijn Franx and Arjen van der Wel (UGent)
(2021) ASTROPHYSICAL JOURNAL LETTERS. 917(1).
Author
Organization
Abstract
We present elemental abundances and stellar population ages for 65 massive quiescent galaxies at 0.59 <= z <= 0.75 from the LEGA-C survey. The abundance patterns and ages, derived from full-spectrum modeling, are examined as a function of stellar mass (M (*)) and size (i.e., half-light radius, R ( e )). We find that both [Mg/H] and [Fe/H] do not vary with stellar mass but are correlated with M (*)/R ( e ) for quiescent galaxies with M (*) > 10(10.5) M (circle dot). Thus, at fixed mass, compact quiescent galaxies are on average more metal-rich. This result reinforces the picture that supernova feedback and gravitational potential regulate chemical enrichment. [Mg/Fe] does not vary with M (*) or M (*)/R ( e ), but there is a marginal positive relation between age and mass. Our results support low-redshift findings that more massive galaxies form their stars at earlier times. However, in contrast to low-redshift studies, star formation timescale does not appear to depend on mass or size. We also compare the mass-[Fe/H] and mass-[Mg/H] relations to stacks of quiescent galaxies at z similar to 0 and find that both relations increase by similar to 0.2 dex over the past 7 Gyr. Furthermore, at z similar to 0.7 we find a clear trend with age, such that older quiescent galaxies have lower metallicities. Both results can be explained by a chemical evolution model in which galaxies quench via gas removal. Future work, in particular with James Webb Space Telescope/NIRSpec, will extend this analysis to higher redshifts, allowing us to fully exploit abundance patterns to study the formation histories of quiescent galaxies.
Keywords
Space and Planetary Science, Astronomy and Astrophysics, METALLICITY RELATION, STELLAR POPULATION, ATLAS(3D) PROJECT, FORMING GALAXIES, EVOLUTION, ORIGIN, TIME

Downloads

  • Download
    Beverage 2021 ApJL 917 L1.pdf
    • full text (Published version)
    • |
    • open access
    • |
    • PDF
    • |
    • 1.54 MB

Citation

Please use this url to cite or link to this publication:

MLA
Beverage, Aliza G., et al. “Elemental Abundances and Ages of z ∼ 0.7 Quiescent Galaxies on the Mass–Size Plane : Implication for Chemical Enrichment and Star Formation Quenching.” ASTROPHYSICAL JOURNAL LETTERS, vol. 917, no. 1, 2021, doi:10.3847/2041-8213/ac12cd.
APA
Beverage, A. G., Kriek, M., Conroy, C., Bezanson, R., Franx, M., & van der Wel, A. (2021). Elemental abundances and ages of z ∼ 0.7 quiescent galaxies on the mass–size plane : implication for chemical enrichment and star formation quenching. ASTROPHYSICAL JOURNAL LETTERS, 917(1). https://doi.org/10.3847/2041-8213/ac12cd
Chicago author-date
Beverage, Aliza G., Mariska Kriek, Charlie Conroy, Rachel Bezanson, Marijn Franx, and Arjen van der Wel. 2021. “Elemental Abundances and Ages of z ∼ 0.7 Quiescent Galaxies on the Mass–Size Plane : Implication for Chemical Enrichment and Star Formation Quenching.” ASTROPHYSICAL JOURNAL LETTERS 917 (1). https://doi.org/10.3847/2041-8213/ac12cd.
Chicago author-date (all authors)
Beverage, Aliza G., Mariska Kriek, Charlie Conroy, Rachel Bezanson, Marijn Franx, and Arjen van der Wel. 2021. “Elemental Abundances and Ages of z ∼ 0.7 Quiescent Galaxies on the Mass–Size Plane : Implication for Chemical Enrichment and Star Formation Quenching.” ASTROPHYSICAL JOURNAL LETTERS 917 (1). doi:10.3847/2041-8213/ac12cd.
Vancouver
1.
Beverage AG, Kriek M, Conroy C, Bezanson R, Franx M, van der Wel A. Elemental abundances and ages of z ∼ 0.7 quiescent galaxies on the mass–size plane : implication for chemical enrichment and star formation quenching. ASTROPHYSICAL JOURNAL LETTERS. 2021;917(1).
IEEE
[1]
A. G. Beverage, M. Kriek, C. Conroy, R. Bezanson, M. Franx, and A. van der Wel, “Elemental abundances and ages of z ∼ 0.7 quiescent galaxies on the mass–size plane : implication for chemical enrichment and star formation quenching,” ASTROPHYSICAL JOURNAL LETTERS, vol. 917, no. 1, 2021.
@article{8723930,
  abstract     = {{We present elemental abundances and stellar population ages for 65 massive quiescent galaxies at 0.59 <= z <= 0.75 from the LEGA-C survey. The abundance patterns and ages, derived from full-spectrum modeling, are examined as a function of stellar mass (M (*)) and size (i.e., half-light radius, R ( e )). We find that both [Mg/H] and [Fe/H] do not vary with stellar mass but are correlated with M (*)/R ( e ) for quiescent galaxies with M (*) > 10(10.5) M (circle dot). Thus, at fixed mass, compact quiescent galaxies are on average more metal-rich. This result reinforces the picture that supernova feedback and gravitational potential regulate chemical enrichment. [Mg/Fe] does not vary with M (*) or M (*)/R ( e ), but there is a marginal positive relation between age and mass. Our results support low-redshift findings that more massive galaxies form their stars at earlier times. However, in contrast to low-redshift studies, star formation timescale does not appear to depend on mass or size. We also compare the mass-[Fe/H] and mass-[Mg/H] relations to stacks of quiescent galaxies at z similar to 0 and find that both relations increase by similar to 0.2 dex over the past 7 Gyr. Furthermore, at z similar to 0.7 we find a clear trend with age, such that older quiescent galaxies have lower metallicities. Both results can be explained by a chemical evolution model in which galaxies quench via gas removal. Future work, in particular with James Webb Space Telescope/NIRSpec, will extend this analysis to higher redshifts, allowing us to fully exploit abundance patterns to study the formation histories of quiescent galaxies.}},
  articleno    = {{L1}},
  author       = {{Beverage, Aliza G. and Kriek, Mariska and Conroy, Charlie and Bezanson, Rachel and Franx, Marijn and van der Wel, Arjen}},
  issn         = {{2041-8205}},
  journal      = {{ASTROPHYSICAL JOURNAL LETTERS}},
  keywords     = {{Space and Planetary Science,Astronomy and Astrophysics,METALLICITY RELATION,STELLAR POPULATION,ATLAS(3D) PROJECT,FORMING GALAXIES,EVOLUTION,ORIGIN,TIME}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{7}},
  title        = {{Elemental abundances and ages of z ∼ 0.7 quiescent galaxies on the mass–size plane : implication for chemical enrichment and star formation quenching}},
  url          = {{http://doi.org/10.3847/2041-8213/ac12cd}},
  volume       = {{917}},
  year         = {{2021}},
}
Altmetric
View in Altmetric
Web of Science
Times cited: