Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31107
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Francesco D'Eugenio | en_US |
dc.contributor.author | Arjen van der Wel | en_US |
dc.contributor.author | Po-Feng Wu | en_US |
dc.contributor.author | Tania M. Barone | en_US |
dc.contributor.author | Josha van Houdt | en_US |
dc.contributor.author | Rachel Bezanson | en_US |
dc.contributor.author | Caroline M. S. Straatman | en_US |
dc.contributor.author | Camilla Pacifici | en_US |
dc.contributor.author | Adam Muzzin | en_US |
dc.contributor.author | Gallazzi, Anna | en_US |
dc.contributor.author | Vivienne Wild | en_US |
dc.contributor.author | David Sobral | en_US |
dc.contributor.author | Eric F. Bell | en_US |
dc.contributor.author | Stefano Zibetti | en_US |
dc.contributor.author | Lamiya Mowla | en_US |
dc.contributor.author | Marijn Franx | en_US |
dc.date.accessioned | 2021-11-17T15:58:24Z | - |
dc.date.available | 2021-11-17T15:58:24Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31107 | - |
dc.description.abstract | We use deep, spatially resolved spectroscopy from the LEGA-C Survey to study radial variations in the stellar population of 17 spectroscopically-selected post-starburst (PSB) galaxies. We use spectral fitting to measure two Lick indices, $H{\delta}_A$ and $Fe4383$, and find that, on average, PSB galaxies have radially decreasing $H{\delta}_A$ and increasing $Fe4383$ profiles. In contrast, a control sample of quiescent, non-PSB galaxies in the same mass range shows outwardly increasing $H{\delta}_A$ and decreasing $Fe4383$. The observed gradients are weak ($\approx-0.2$ \r{A}/$R_e$), mainly due to seeing convolution. A two-SSP model suggests intrinsic gradients are as strong as observed in local PSB galaxies ($\approx -0.8$ \r{A}$/R_e$). We interpret these results in terms of inside-out growth (for the bulk of the quiescent population) vs star formation occurring last in the centre (for PSB galaxies). At $z\approx0.8$, central starbursts are often the result of gas-rich mergers, as evidenced by the high fraction of PSB galaxies with disturbed morphologies and tidal features (40%). Our results provide additional evidence for multiple paths to quiescence: a standard path, associated with inside-out disc formation and with gradually decreasing star-formation activity, without fundamental structural transformation, and a fast path, associated with centrally-concentrated starbursts, leaving an inverse age gradient and smaller half-light radius. | en_US |
dc.language.iso | eng | en_US |
dc.title | Inverse stellar population age gradients of post-starburst galaxies at z=0.8 with LEGA-C | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa1937 | en_US |
dc.identifier.scopus | 2-s2.0-85097435680 | en_US |
dc.identifier.isi | WOS:000574919600028 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/497/1/389/5872492 | en_US |
dc.identifier.url | http://arxiv.org/abs/2007.00663v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 497 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 389 | en_US |
dc.relation.lastpage | 404 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020MNRAS.497..389D | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-9656-1800 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
staa1937.pdf | PDF editoriale | 6.01 MB | Adobe PDF | View/Open |
Page view(s)
33
checked on Apr 23, 2024
Download(s)
30
checked on Apr 23, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.