Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30113
DC Field | Value | Language |
---|---|---|
dc.contributor.author | CALDERONE, GIORGIO | en_US |
dc.contributor.author | Boutsia, Konstantina | en_US |
dc.contributor.author | CRISTIANI, Stefano | en_US |
dc.contributor.author | GRAZIAN, Andrea | en_US |
dc.contributor.author | Amorin, Ricardo | en_US |
dc.contributor.author | D'ODORICO, Valentina | en_US |
dc.contributor.author | CUPANI, Guido | en_US |
dc.contributor.author | FONTANOT, Fabio | en_US |
dc.contributor.author | Salvato, Mara | en_US |
dc.date.accessioned | 2021-01-29T16:38:37Z | - |
dc.date.available | 2021-01-29T16:38:37Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30113 | - |
dc.description.abstract | The study of absorptions along the lines of sight to bright high-z QSOs is an invaluable cosmological tool that provides a wealth of information on the inter-/circum-galactic medium, dark matter, primordial elements, reionization, fundamental constants, and general relativity. Unfortunately, the number of bright (i ≲ 18) QSOs at z ≳ 2 in the southern hemisphere is much lower than that in the north, due to the lack of wide multiwavelength surveys at decl. δ < 0°, hampering the effectiveness of observations from southern observatories. In this work we present a new method based on Canonical Correlation Analysis to identify such objects, taking advantage of a number of available databases: Skymapper, Gaia DR2, WISE, and 2MASS. Our QSO candidate sample lists 1476 sources with i < 18 over 12,400 square degrees in the southern hemisphere. With a preliminary campaign we observed spectroscopically 69 of them, confirming 54 new bright QSOs at z > 2.5, corresponding to a success rate of our method of ∼80%. Furthermore, we estimate a completeness of ∼90% of our sample at completion of our observation campaign. The new QSOs confirmed by this first and the forthcoming campaigns (QUBRICS<SUP>10</SUP> survey) will be the targets of subsequent studies using higher resolution spectrographs, like ESPRESSO, UVES, and (in the long term) ELT/HIRES. | en_US |
dc.language.iso | eng | en_US |
dc.title | Finding the Brightest Cosmic Beacons in the Southern Hemisphere | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ab510a | en_US |
dc.identifier.scopus | 2-s2.0-85077335323 | en_US |
dc.identifier.isi | 000506012000162 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ab510a | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 887 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 268 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | CHL | 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 | 2019ApJ...887..268C | 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.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.orcid | 0000-0002-7738-5389 | - |
crisitem.author.orcid | 0000-0002-2115-5234 | - |
crisitem.author.orcid | 0000-0002-5688-0663 | - |
crisitem.author.orcid | 0000-0003-3693-3091 | - |
crisitem.author.orcid | 0000-0002-6830-9093 | - |
crisitem.author.orcid | 0000-0003-4744-0188 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Calderone_2019_ApJ_887_268.pdf | Pdf editoriale | 1.75 MB | Adobe PDF | View/Open |
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