Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31006
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bouwens, Rychard | en_US |
dc.contributor.author | González-López, Jorge | en_US |
dc.contributor.author | Aravena, Manuel | en_US |
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Novak, Mladen | en_US |
dc.contributor.author | Stefanon, Mauro | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | Boogaard, Leindert | en_US |
dc.contributor.author | Carilli, Chris | en_US |
dc.contributor.author | Dudzevičiūtė, Ugnė | en_US |
dc.contributor.author | Smail, Ian | en_US |
dc.contributor.author | Daddi, Emanuele | en_US |
dc.contributor.author | da Cunha, Elisabete | en_US |
dc.contributor.author | Ivison, Rob | en_US |
dc.contributor.author | Nanayakkara, Themiya | en_US |
dc.contributor.author | Cortes, Paulo | en_US |
dc.contributor.author | Cox, Pierre | en_US |
dc.contributor.author | Inami, Hanae | en_US |
dc.contributor.author | Oesch, Pascal | en_US |
dc.contributor.author | Popping, Gergö | en_US |
dc.contributor.author | Riechers, Dominik | en_US |
dc.contributor.author | van der Werf, Paul | en_US |
dc.contributor.author | Weiss, Axel | en_US |
dc.contributor.author | Fudamoto, Yoshi | en_US |
dc.contributor.author | Wagg, Jeff | en_US |
dc.date.accessioned | 2021-09-01T10:42:09Z | - |
dc.date.available | 2021-09-01T10:42:09Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31006 | - |
dc.description.abstract | We make use of sensitive (9.3 μJy beam<SUP>-1</SUP> rms) 1.2 mm continuum observations from the Atacama Large Millimeter/submillimeter Array (ALMA) Spectroscopic Survey in the Hubble Ultra-Deep Field (ASPECS) large program to probe dust-enshrouded star formation from 1362 Lyman-break galaxies spanning the redshift range z = 1.5-10 (to ˜7-28 M<SUB>⊙</SUB> yr<SUP>-1</SUP> at 4σ over the entire range). We find that the fraction of ALMA-detected galaxies in our z = 1.5-10 samples increases steeply with stellar mass, with the detection fraction rising from 0% at 10<SUP>9.0</SUP> M<SUB>⊙</SUB> to ${85}_{-18}^{+9}$ % at >10<SUP>10</SUP> M<SUB>⊙</SUB>. Moreover, on stacking all 1253 low-mass (<10<SUP>9.25</SUP> M<SUB>⊙</SUB>) galaxies over the ASPECS footprint, we find a mean continuum flux of -0.1 ± 0.4 μJy beam<SUP>-1</SUP>, implying a hard upper limit on the obscured star formation rate of <0.6 M<SUB>⊙</SUB> yr<SUP>-1</SUP> (4σ) in a typical low-mass galaxy. The correlation between the infrared excess (IRX) of UV-selected galaxies (L<SUB>IR</SUB>/L<SUB>UV</SUB>) and the UV-continuum slope is also seen in our ASPECS data and shows consistency with a Calzetti-like relation at > ${10}^{9.5}\,{M}_{\odot }$ and an SMC-like relation at lower masses. Using stellar mass and β measurements for z ˜ 2 galaxies over the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey, we derive a new empirical relation between β and stellar mass and then use this correlation to show that our IRX-β and IRX-stellar mass relations are consistent with each other. We then use these constraints to express the IRX as a bivariate function of β and stellar mass. Finally, we present updated estimates of star formation rate density determinations at z > 3, leveraging present improvements in the measured IRX and recent probes of ultraluminous far-IR galaxies at z > 2. | en_US |
dc.language.iso | eng | en_US |
dc.title | The ALMA Spectroscopic Survey Large Program: The Infrared Excess of z = 1.5-10 UV-selected Galaxies and the Implied High-redshift Star Formation History | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/abb830 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/abb830 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 902 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 112 | 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 | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020ApJ...902..112B | 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.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-2662-8803 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Bouwens_2020_ApJ_902_112.pdf | Pdf editoriale | 3.58 MB | Adobe PDF | View/Open |
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