Skip navigation
  • INAF logo
  • Home
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects
  • Explore by
    • Research outputs
    • Researchers
    • Organization units
    • Projects
  • Login:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
  • Italian
  • English

  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31698
Title: Ubiquitous [O II] Emission in Quiescent Galaxies at z ≈ 0.85 from the LEGA-C Survey
Authors: Maseda, Michael V.
VAN DER WEL, ARJEN 
Franx, Marijn
Bell, Eric F.
Bezanson, Rachel
Muzzin, Adam
Sobral, David
D'Eugenio, Francesco
GALLAZZI, Anna Rita 
De Graaff, Anna
Leja, Joel
Straatman, Caroline
Whitaker, Katherine E.
Williams, Christina C.
Wu, Po Feng
Issue Date: 2021
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 923
Issue: 1
First Page: 18
Abstract: Using deep rest-frame optical spectroscopy from the Large Early Galaxy Astrophysical Census (LEGA-C) survey, conducted using VIMOS on the ESO Very Large Telescope, we search for low-ionization [O ii] λ λ 3726,3729 emission in the spectra of a mass-complete sample of z ≈ 0.85 galaxies. We find that 59% of UVJ-quiescent (i.e., non-star-forming) galaxies in the sample have [O ii] emission detected above our completeness limit of 1.5 Å, and the median-stacked spectrum of the remaining sample also shows [O ii] emission. The overall fraction of sources with [O ii] above our equivalent width limit is comparable to what we find in the low-redshift universe from GAMA and MASSIVE, except perhaps at the highest stellar masses (>1011.5 M o˙). However, stacked spectra for the individual low-equivalent-width systems uniquely indicates ubiquitous [O ii] emission in the higher-z LEGA-C sample, with typical [O ii] luminosities per unit stellar mass that are a factor of ×3 larger than the lower-z GAMA sample. Star formation at higher-z could play a role in producing the [O ii] emission, although it is unlikely to provide the bulk of the ionizing photons. More work is required to fully quantify the contributions of evolved stellar populations or active galactic nuclei to the observed spectra.
URI: http://hdl.handle.net/20.500.12386/31698
URL: https://iopscience.iop.org/article/10.3847/1538-4357/ac2bfe
https://api.elsevier.com/content/abstract/scopus_id/85121770446
ISSN: 0004-637X
DOI: 10.3847/1538-4357/ac2bfe
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

Files in This Item:
File Description SizeFormat
2110.00009.pdfpreprint705.75 kBAdobe PDFView/Open
Maseda_2021_ApJ_923_18.pdf[Administrators only]6.84 MBAdobe PDF
Show full item record

Page view(s)

10
checked on Jul 6, 2022

Download(s)

6
checked on Jul 6, 2022

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are published in Open Access, unless otherwise indicated.


Explore by
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects

Informazioni e guide per autori

https://openaccess-info.inaf.it: tutte le informazioni sull'accesso aperto in INAF

Come si inserisce un prodotto: le guide a OA@INAF

La Policy INAF sull'accesso aperto

Documenti e modelli scaricabili

Feedback
Built with DSpace-CRIS - Extension maintained and optimized by Logo 4SCIENCE