Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30277
DC Field | Value | Language |
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dc.contributor.author | PUGLISI, ANNAGRAZIA | en_US |
dc.contributor.author | Daddi, E. | en_US |
dc.contributor.author | Liu, D. | en_US |
dc.contributor.author | Bournaud, F. | en_US |
dc.contributor.author | Silverman, J. D. | en_US |
dc.contributor.author | Circosta, C. | en_US |
dc.contributor.author | Calabrò, A. | en_US |
dc.contributor.author | Aravena, M. | en_US |
dc.contributor.author | Cibinel, A. | en_US |
dc.contributor.author | Dannerbauer, H. | en_US |
dc.contributor.author | DELVECCHIO, IVAN | en_US |
dc.contributor.author | Elbaz, D. | en_US |
dc.contributor.author | Gao, Y. | en_US |
dc.contributor.author | Gobat, R. | en_US |
dc.contributor.author | Jin, S. | en_US |
dc.contributor.author | Floc’h, E. Le | en_US |
dc.contributor.author | Magdis, G. E. | en_US |
dc.contributor.author | Mancini, C. | en_US |
dc.contributor.author | Riechers, D. A. | en_US |
dc.contributor.author | Rodighiero, G. | en_US |
dc.contributor.author | Sargent, M. | en_US |
dc.contributor.author | Valentino, F. | en_US |
dc.contributor.author | Zanisi, L. | en_US |
dc.date.accessioned | 2021-02-10T11:31:21Z | - |
dc.date.available | 2021-02-10T11:31:21Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30277 | - |
dc.description.abstract | Atacama Large Millimeter/submillimeter Array (ALMA) measurements for 93 Herschel-selected galaxies at 1.1 ≤ z ≤ 1.7 in COSMOS reveal a sizable (>29%) population with compact star formation (SF) sizes, lying on average >×3.6 below the optical stellar mass (M ⋆)-size relation of disks. This sample widely spans the star-forming main sequence (MS), having 108 ≤ M ⋆ ≤ 1011.5 M ☉ and 20 ≤ star formation rate (SFR) ≤ 680 M ☉ yr-1. The 32 size measurements and 61 upper limits are measured on ALMA images that combine observations of CO(5-4), CO(4-3), CO(2-1), and λ obs ∼ 1.1-1.3 mm continuum, all tracing the star-forming molecular gas. These compact galaxies have instead normally extended K band sizes, suggesting strong specific SFR gradients. Compact galaxies comprise the 50 ± 18% of MS galaxies at M ⋆ > 1011 M ☉. This is not expected in standard bimodal scenarios, where MS galaxies are mostly steadily growing extended disks. We suggest that compact MS objects are early post-starburst galaxies in which the merger-driven boost of SF has subsided. They retain their compact SF size until either further gas accretion restores premerger galaxy-wide SF, or until becoming quenched. The fraction of merger-affected SF inside the MS seems thus larger than anticipated and might reach ∼50% at the highest M ⋆. The presence of large galaxies above the MS demonstrates an overall poor correlation between galaxy SF size and specific SFR. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Main Sequence at z ∼ 1.3 Contains a Sizable Fraction of Galaxies with Compact Star Formation Sizes: A New Population of Early Post-starbursts? | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/ab1f92 | en_US |
dc.identifier.scopus | 2-s2.0-85069964571 | en_US |
dc.identifier.isi | 000469811200003 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8213/ab1f92 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 877 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | L23 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019ApJ...877L..23P | en_US |
dc.description.apc | sì | 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.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-9553-8804 | - |
crisitem.author.orcid | 0000-0001-8706-2252 | - |
crisitem.journal.journalissn | 2041-8205 | - |
crisitem.journal.ance | E196528 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Puglisi2019.pdf | preprint | 1.14 MB | Adobe PDF | View/Open |
Puglisi_2019_ApJL_877_L23.pdf | pdf editoriale | 1.09 MB | Adobe PDF | View/Open |
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