DES J0454−4448 : discovery of the first luminous z ≥ 6 quasar from the Dark Energy Survey
dc.contributor.author | Reed, Sophie L. | pt_BR |
dc.contributor.author | McMahon, Richard G. | pt_BR |
dc.contributor.author | Banerji, M. | pt_BR |
dc.contributor.author | Becker, George D. | pt_BR |
dc.contributor.author | Gonzalez-Solares, Eduardo | pt_BR |
dc.contributor.author | Martini, Paul | pt_BR |
dc.contributor.author | Ostrovski, F. | pt_BR |
dc.contributor.author | Rauch, Michael | pt_BR |
dc.contributor.author | Abbott, Timothy M. C. | pt_BR |
dc.contributor.author | Abdalla, Filipe B. | pt_BR |
dc.contributor.author | Allam, Sahar S. | pt_BR |
dc.contributor.author | Benoit-Lévy, Aurélien | pt_BR |
dc.contributor.author | Bertin, Emmanuel | pt_BR |
dc.contributor.author | Buckley-Geer, Elizabeth | pt_BR |
dc.contributor.author | Burke, David Lyle | pt_BR |
dc.contributor.author | Costa, Luiz N. da | pt_BR |
dc.contributor.author | Carnero Rosell, Aurelio | pt_BR |
dc.contributor.author | D'Andrea, Christopher B. | pt_BR |
dc.contributor.author | DePoy, Darren L. | pt_BR |
dc.contributor.author | Desai, S. | pt_BR |
dc.contributor.author | Diehl, H. Thomas | pt_BR |
dc.contributor.author | Doel, Peter | pt_BR |
dc.contributor.author | Cunha, Carlos Eduardo | pt_BR |
dc.contributor.author | Estrada, Juan | pt_BR |
dc.contributor.author | Evrard, August E. | pt_BR |
dc.contributor.author | Fausti Neto, Angelo | pt_BR |
dc.contributor.author | Finley, David A. | pt_BR |
dc.contributor.author | Fosalba Vela, Pablo | pt_BR |
dc.contributor.author | Frieman, Joshua A. | pt_BR |
dc.contributor.author | Gruen, Daniel | pt_BR |
dc.contributor.author | Honscheid, K. | pt_BR |
dc.contributor.author | James, David J. | pt_BR |
dc.contributor.author | Kent, Stephen M. | pt_BR |
dc.contributor.author | Kuehn, Kyler | pt_BR |
dc.contributor.author | Kuropatkin, Nikolay P. | pt_BR |
dc.contributor.author | Lahav, Ofer | pt_BR |
dc.contributor.author | Maia, Marcio Antonio Geimba | pt_BR |
dc.contributor.author | Makler, Martín | pt_BR |
dc.contributor.author | Marshall, Jennifer L. | pt_BR |
dc.contributor.author | Merritt, K. Wyatt | pt_BR |
dc.contributor.author | Miquel, Ramon | pt_BR |
dc.contributor.author | Mohr, Joseph J. | pt_BR |
dc.contributor.author | Nord, Brian Dennis | pt_BR |
dc.contributor.author | Ogando, Ricardo L.C. | pt_BR |
dc.contributor.author | Plazas Malagón, Andrés Alejandro | pt_BR |
dc.contributor.author | Romer, Anita K. | pt_BR |
dc.contributor.author | Roodman, Aaron | pt_BR |
dc.contributor.author | Rykoff, Eli | pt_BR |
dc.contributor.author | Sako, Masao | pt_BR |
dc.contributor.author | Sanchez-Alvaro, Eusebio | pt_BR |
dc.contributor.author | Santiago, Basilio Xavier | pt_BR |
dc.contributor.author | Schubnell, Michael | pt_BR |
dc.contributor.author | Sevilla Noarbe, Ignacio | pt_BR |
dc.contributor.author | Smith, Robert Christopher | pt_BR |
dc.contributor.author | Soares-Santos, Marcelle | pt_BR |
dc.contributor.author | Suchyta, Eric | pt_BR |
dc.contributor.author | Swanson, Molly E. C. | pt_BR |
dc.contributor.author | Tarle, Gregory | pt_BR |
dc.contributor.author | Thomas, D. | pt_BR |
dc.contributor.author | Tucker, Douglas L. | pt_BR |
dc.contributor.author | Walker, Alistair | pt_BR |
dc.contributor.author | Wechsler, Risa H. | pt_BR |
dc.date.accessioned | 2016-05-06T02:22:12Z | pt_BR |
dc.date.issued | 2015 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/140396 | pt_BR |
dc.description.abstract | We present the first results of a survey for high-redshift, z ≥ 6, quasars using izY multicolour photometric observations from the Dark Energy Survey (DES). Here we report the discovery and spectroscopic confirmation of the zAB, YAB = 20.2, 20.2 (M1450 = −26.5) quasar DES J0454−4448 with a redshift of z = 6.09±0.02 based on the onset of the Ly α forest and an H I near zone size of 4.1+1.1 −1.2 proper Mpc. The quasar was selected as an i-band drop out with i−z= 2.46 and zAB < 21.5 from an area of ∼300 deg2. It is the brightest of our 43 candidates and was identified for spectroscopic follow-up solely based on the DES i−z and z−Y colours. The quasar is detected by WISE and has W1AB = 19.68. The discovery of one spectroscopically confirmed quasar with 5.7 < z<6.5 and zAB ≤ 20.2 is consistent with recent determinations of the luminosity function at z ∼ 6. DES when completed will have imaged ∼5000 deg2 to YAB = 23.0 (5σ point source) and we expect to discover 50–100 new quasars with z > 6 including 3–10 with z > 7 dramatically increasing the numbers of quasars currently known that are suitable for detailed studies. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the Royal Astronomical Society. Oxford. Vol. 454, no. 4 (Dec. 2015), p. 3952-3961 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Galaxies: active | en |
dc.subject | Galáxias ativas | pt_BR |
dc.subject | Galaxies: formation | en |
dc.subject | Formacao de galaxias | pt_BR |
dc.subject | Quasars | pt_BR |
dc.subject | Galaxies: high-redshift | en |
dc.subject | Quasars: individual: DES J0454-4448 | en |
dc.subject | Dark ages, reionization, first stars | en |
dc.title | DES J0454−4448 : discovery of the first luminous z ≥ 6 quasar from the Dark Energy Survey | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000985568 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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