St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Register / Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

The VANDELS survey : the star-formation histories of massive quiescent galaxies at 1.0 < z < 1.3

Thumbnail
View/Open
Carnall_2019_VANDELS_star_formation_histories_MNRAS_417.pdf (4.911Mb)
Date
11/2019
Author
Carnall, A. C.
McLure, R. J.
Dunlop, J. S.
Cullen, F.
McLeod, D. J.
Wild, V.
Johnson, B. D.
Appleby, S.
Davé, R.
Amorin, R.
Bolzonella, M.
Castellano, M.
Cimatti, A.
Cucciati, O.
Gargiulo, A.
Garilli, B.
Marchi, F.
Pentericci, L.
Pozzetti, L.
Schreiber, C.
Talia, M.
Zamorani, G.
Keywords
Methods: statistical
Galaxies: evolution
Galaxies: star formation
QB Astronomy
QC Physics
3rd-DAS
Metadata
Show full item record
Abstract
We present a Bayesian full-spectral-fitting analysis of 75 massive (⁠M∗>1010.3M⊙⁠) UVJ-selected galaxies at redshifts of 1.0 < z < 1.3, combining extremely deep rest-frame ultraviolet spectroscopy from VANDELS with multiwavelength photometry. By the use of a sophisticated physical plus systematic uncertainties model, constructed within the bagpipes code, we place strong constraints on the star-formation histories (SFHs) of individual objects. We first constrain the stellar mass versus stellar age relationship, finding a steep trend towards earlier average formation time with increasing stellar mass (downsizing) of 1.48+0.34−0.39 Gyr per decade in mass, although this shows signs of flattening at M∗>1011M⊙⁠. We show that this is consistent with other spectroscopic studies from 0 < z < 2. This relationship places strong constraints on the AGN-feedback models used in cosmological simulations. We demonstrate that, although the relationships predicted by SIMBA and ILLUSTRISTNG agree well with observations at z = 0.1, they are too shallow at z = 1, predicting an evolution of ≲0.5 Gyr per decade in mass. Secondly, we consider the connections between green-valley, post-starburst, and quiescent galaxies, using our inferred SFH shapes and the distributions of galaxy physical properties on the UVJ diagram. The majority of our lowest-mass galaxies (⁠M∗∼1010.5M⊙⁠) are consistent with formation in recent (z < 2), intense starburst events, with time-scales of ≲500  Myr. A second class of objects experience extended star-formation epochs before rapidly quenching, passing through both green-valley and post-starburst phases. The most massive galaxies in our sample are extreme systems: already old by z = 1, they formed at z ∼ 5 and quenched by z = 3. However, we find evidence for their continued evolution through both AGN and rejuvenated star-formation activity.
Citation
Carnall , A C , McLure , R J , Dunlop , J S , Cullen , F , McLeod , D J , Wild , V , Johnson , B D , Appleby , S , Davé , R , Amorin , R , Bolzonella , M , Castellano , M , Cimatti , A , Cucciati , O , Gargiulo , A , Garilli , B , Marchi , F , Pentericci , L , Pozzetti , L , Schreiber , C , Talia , M & Zamorani , G 2019 , ' The VANDELS survey : the star-formation histories of massive quiescent galaxies at 1.0 < z < 1.3 ' , Monthly Notices of the Royal Astronomical Society , vol. 490 , no. 1 , pp. 417-439 . https://doi.org/10.1093/mnras/stz2544
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stz2544
ISSN
0035-8711
Type
Journal article
Rights
Copyright © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stz2544
Description
Funding: UK Science and Technology Facilities Council (ACC, FC, SA).
Collections
  • University of St Andrews Research
URL
http://adsabs.harvard.edu/abs/2019MNRAS.490..417C
URI
http://hdl.handle.net/10023/19001

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter