Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/23613
DC Field | Value | Language |
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dc.contributor.author | Diener, C. | en_US |
dc.contributor.author | Lilly, S. J. | en_US |
dc.contributor.author | Ledoux, C. | en_US |
dc.contributor.author | Zamorani, G. | en_US |
dc.contributor.author | BOLZONELLA, MICOL | en_US |
dc.contributor.author | Murphy, D. N. A. | en_US |
dc.contributor.author | Capak, P. | en_US |
dc.contributor.author | Ilbert, O. | en_US |
dc.contributor.author | McCracken, H. | en_US |
dc.date.accessioned | 2020-03-26T16:37:23Z | - |
dc.date.available | 2020-03-26T16:37:23Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/23613 | - |
dc.description | This research has been supported by the Swiss National Science Foundation (SNF) and the European Southern Observatory (ESO). It is based on observations undertaken at the ESO Very Large Telescope (VLT) under Program 290.A-5160(A). It also uses data products from observations made with ESO Telescopes at the La Silla Paranal Observatory under ESO program ID 179.A-2005 and data products produced by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium. The Millennium simulation databases used in this paper and the Web application providing online access to them were constructed as part of the activities of the German Astrophysical Virtual Observatory. | en |
dc.description.abstract | We present the spectroscopic confirmation of a z = 2.45 protocluster. Its member galaxies lie within a radius of 1.4 Mpc (physical) on the sky and within {∆ }v+/- 700 km {{s}<SUP>-1</SUP>} along the line of sight. We estimate an overdensity of 10, suggesting that the structure has made the turnaround but is not assembled yet. A comparison to the Millennium simulation suggests that analogous structures evolve into 10<SUP>14</SUP>-10<SUP>15</SUP> M<SUB>☉</SUB> h<SUP>-1</SUP> type dark matter halos by z = 0, qualifying the notion of “protocluster.” The search for the complete census of mock progenitor galaxies at z̃ 2.5 of these massive z = 0 mock clusters reveals that they are widely spread over areas with a diameter of 3-20 Mpc. This suggests that the optical selection of such protoclusters can result in a rich diversity regarding their z = 0 descendants. We also searched for signs of environmental differentiation in this protocluster. While we see a weak trend for more massive and more quiescent galaxies within the protocluster, this is not statistically significant. | en_US |
dc.language.iso | eng | en_US |
dc.title | A Protocluster at z = 2.45 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/0004-637X/802/1/31 | en_US |
dc.identifier.scopus | 2-s2.0-84925777374 | en_US |
dc.identifier.isi | 000351834700031 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/0004-637X/802/1/31 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 802 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 31 | en_US |
dc.relation.numberofpages | 8 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 9 | 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 | 2015ApJ...802...31D | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò 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 | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-3278-4607 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Diener_2015_ApJ_802_31.pdf | 2.2 MB | Adobe PDF | View/Open |
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