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The discovery of the most UV–Ly α luminous star-forming galaxy: a young, dust- and metal-poor starburst with QSO-like luminosities

dc.contributor.authorMarques Chaves, R.
dc.contributor.authorÁlvarez Márquez, J.
dc.contributor.authorColina, L.
dc.contributor.authorPérez Fournon, I.
dc.contributor.authorSchaerer, D.
dc.contributor.authorDalla Vecchia, C.
dc.contributor.authorHashimoto, T.
dc.contributor.authorJiménez Ángel, C.
dc.contributor.authorShu, Y.
dc.contributor.funderAgencia Estatal de Investigación (AEI)
dc.contributor.funderMinisterio de Economía y Competitividad (MINECO)
dc.contributor.orcidShu, Y. [0000-0002-9063-698X]
dc.contributor.orcidDalla Vecchia, C. [0000-0002-2620-7056]
dc.contributor.orcidMarqués Chaves, R. [0000-0001-8442-1846]
dc.contributor.otherUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
dc.date.accessioned2021-04-12T10:06:25Z
dc.date.available2021-04-12T10:06:25Z
dc.date.issued2020-09-16
dc.description.abstractWe report the discovery of BOSS-EUVLG1 at z = 2.469, by far the most luminous, almost un-obscured star-forming galaxy known at any redshift. First classified as a QSO within the Baryon Oscillation Spectroscopic Survey, follow-up observations with the Gran Telescopio Canarias reveal that its large luminosity, M-UV similar or equal to -24.40 and log(L-Ly alpha/erg s(-1)) similar or equal to 44.0, is due to an intense burst of star formation, and not to an active galactic nucleus or gravitational lensing. BOSS-EUVLG1 is a compact (r(eff) similar or equal to 1.2 kpc), young (4-5 Myr) starburst with a stellar mass log(M-*/M-circle dot) = 10.0 +/- 0.1 and a prodigious star formation rate of similar or equal to 1000 M-circle dot yr(-1). However, it is metal- and dust-poor [12+ log(O/H) = 8.13 +/- 0.19, E(B - V) similar or equal to 0.07, log(L-IR/L-UV) < -1.2], indicating that we are witnessing the very early phase of an intense starburst that has had no time to enrich the ISM. BOSS-EUVLG1 might represent a short-lived (<100 Myr), yet important phase of star-forming galaxies at high redshift that has been missed in previous surveys. Within a galaxy evolutionary scheme, BOSS-EUVLG1 could likely represent the very initial phases in the evolution of massive quiescent galaxies, even before the dusty star-forming phase.es
dc.description.peerreviewedPeer reviewes
dc.description.sponsorshipThe authors thank the anonymous referee for useful comments. Based on observations made with the Gran Telescopio Canarias (GTC) installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrof ' isica de Canarias, in the island of La Palma. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2018.1.00932.S. ALMA is a partnership of ESO (representing its member states), NSF (USA), and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic ofKorea), in cooperationwith theRepublic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO, and NAOJ. RMC, JAM, LC, IPF, CDV, and CJA acknowledge support from the Spanish State Research Agency (AEI) under grant numbers ESP2015-65597-C4-4-R, ESP2017-86852-C4-2-R, RyC-2015-18078, PGC2018-094975-B-C22, and MDM-2017-0737 Unidad de Excelencia 'Maria de Maeztu' - Centro de Astrobiologia (CSIC-INTA).es
dc.identifier.citationMonthly Notices of the Royal Astronomical Society: Letters 499(1): L105–L110(2020)es
dc.identifier.doi10.1093/mnrasl/slaa160
dc.identifier.e-issn1745-3933
dc.identifier.funderhttp://dx.doi.org/10.13039/501100011033
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329
dc.identifier.issn1745-3925
dc.identifier.otherhttps://academic.oup.com/mnrasl/article/499/1/L105/5906557
dc.identifier.urihttp://hdl.handle.net/20.500.12666/238
dc.language.isoenges
dc.publisherOxford Academics: Oxford University Presses
dc.relationinfo:eu-repo/grantAgreement/MINECO//ESP2015-65597-C4-4-R
dc.relationinfo:eu-repo/grantAgreement/MINECO//RYC-2015-18078
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-094975-B-C22/ES/ENTORNOS GALACTICOS Y EVOLUCION: INVESTIGACION TEORICA CON ASTROFISICA COMPUTACIONAL/
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licenseCopyright © 2020, Oxford University Press
dc.subjectGalaxies: formationes
dc.subjectGalaxies: high redshiftes
dc.titleThe discovery of the most UV–Ly α luminous star-forming galaxy: a young, dust- and metal-poor starburst with QSO-like luminositieses
dc.typeinfo:eu-repo/semantics/articlees
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication

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