Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25939
DC Field | Value | Language |
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dc.contributor.author | Marino, R. A. | en_US |
dc.contributor.author | Gil de Paz, A. | en_US |
dc.contributor.author | Sánchez, S. F. | en_US |
dc.contributor.author | Sánchez-Blázquez, P. | en_US |
dc.contributor.author | Cardiel, N. | en_US |
dc.contributor.author | Castillo-Morales, A. | en_US |
dc.contributor.author | Pascual, S. | en_US |
dc.contributor.author | Vílchez, J. | en_US |
dc.contributor.author | Kehrig, C. | en_US |
dc.contributor.author | Mollá, M. | en_US |
dc.contributor.author | Mendez-Abreu, J. | en_US |
dc.contributor.author | Catalán-Torrecilla, C. | en_US |
dc.contributor.author | Florido, E. | en_US |
dc.contributor.author | Perez, I. | en_US |
dc.contributor.author | Ruiz-Lara, T. | en_US |
dc.contributor.author | Ellis, S. | en_US |
dc.contributor.author | López-Sánchez, A. R. | en_US |
dc.contributor.author | González Delgado, R. M. | en_US |
dc.contributor.author | de Lorenzo-Cáceres, A. | en_US |
dc.contributor.author | García-Benito, R. | en_US |
dc.contributor.author | Galbany, L. | en_US |
dc.contributor.author | ZIBETTI, Stefano | en_US |
dc.contributor.author | Cortijo, C. | en_US |
dc.contributor.author | Kalinova, V. | en_US |
dc.contributor.author | Mast, D. | en_US |
dc.contributor.author | Iglesias-Páramo, J. | en_US |
dc.contributor.author | Papaderos, P. | en_US |
dc.contributor.author | Walcher, C. J. | en_US |
dc.contributor.author | Bland-Hawthorn, J. | en_US |
dc.date.accessioned | 2020-06-05T11:24:45Z | - |
dc.date.available | 2020-06-05T11:24:45Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25939 | - |
dc.description.abstract | We study, for the first time in a statistically significant and well-defined sample, the relation between the outer-disk ionized-gas metallicity gradients and the presence of breaks in the surface brightness profiles of disk galaxies. Sloan Digital Sky Survey (SDSS) g'- and r'-band surface brightness, (g' - r') color, and ionized-gasoxygen abundance profiles for 324 galaxies within the Calar Alto Legacy Integral Field Area (CALIFA) survey are used for this purpose. We perform a detailed light-profile classification, finding that 84% of our disks show down- or up-bending profiles (Type II and Type III, respectively), while the remaining 16% are well fitted by one single exponential (Type I). The analysis of the color gradients at both sides of this break shows a U-shaped profile for most Type II galaxies with an average minimum (g' - r') color of ~0.5 mag and an ionized-gas metallicity flattening associated with it only in the case of low-mass galaxies. Comparatively, more massive systems show a rather uniform negative metallicity gradient. The correlation between metallicity flattening and stellar mass for these systems results in p-values as low as 0.01. Independent of the mechanism having shaped the outer light profiles of these galaxies, stellar migration or a previous episode of star formation in a shrinking star-forming disk, it is clear that the imprint in their ionized-gas metallicity was different for low- and high-mass Type II galaxies. In the case of Type III disks, a positive correlation between the change in color and abundance gradient is found (the null hypothesis is ruled out with a p-value of 0.02), with the outer disks of Type III galaxies with masses ≤10<SUP>10</SUP> M<SUB>☉</SUB> showing a weak color reddening or even a bluing. This is interpreted as primarily due to a mass downsizing effect on the population of Type III galaxies that recently experienced an enhanced inside-out growth. | en_US |
dc.language.iso | eng | en_US |
dc.title | Outer-disk reddening and gas-phase metallicities: The CALIFA connection | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201526986 | en_US |
dc.identifier.scopus | 2-s2.0-84951781079 | en_US |
dc.identifier.isi | 000369710300054 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2016/01/aa26986-15/aa26986-15.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 585 | en_US |
dc.relation.firstpage | A47 | 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 | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016A&A...585A..47M | en_US |
dc.relation.fund | FP7 | 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::PE9_8 Formation and evolution of galaxies | 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.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0003-1734-8356 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
aa26986-15.pdf | Pdf editoriale | 8.08 MB | Adobe PDF | View/Open |
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