Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30330
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gozaliasl, Ghassem | en_US |
dc.contributor.author | Finoguenov, Alexis | en_US |
dc.contributor.author | Tanaka, Masayuki | en_US |
dc.contributor.author | Dolag, Klaus | en_US |
dc.contributor.author | Montanari, Francesco | en_US |
dc.contributor.author | Kirkpatrick, Charles C. | en_US |
dc.contributor.author | Vardoulaki, Eleni | en_US |
dc.contributor.author | Khosroshahi, Habib G. | en_US |
dc.contributor.author | Salvato, Mara | en_US |
dc.contributor.author | Laigle, Clotilde | en_US |
dc.contributor.author | McCracken, Henry J. | en_US |
dc.contributor.author | Ilbert, Olivier | en_US |
dc.contributor.author | CAPPELLUTI, Nico | en_US |
dc.contributor.author | Daddi, Emanuele | en_US |
dc.contributor.author | Hasinger, Guenther | en_US |
dc.contributor.author | Capak, Peter | en_US |
dc.contributor.author | Scoville, Nick Z. | en_US |
dc.contributor.author | Toft, Sune | en_US |
dc.contributor.author | Civano, Francesca | en_US |
dc.contributor.author | Griffiths, Richard E. | en_US |
dc.contributor.author | Balogh, Michael | en_US |
dc.contributor.author | Li, Yanxia | en_US |
dc.contributor.author | Ahoranta, Jussi | en_US |
dc.contributor.author | Mei, Simona | en_US |
dc.contributor.author | IOVINO, Angela | en_US |
dc.contributor.author | Henriques, Bruno M. B. | en_US |
dc.contributor.author | Erfanianfar, Ghazaleh | en_US |
dc.date.accessioned | 2021-02-11T12:10:08Z | - |
dc.date.available | 2021-02-11T12:10:08Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30330 | - |
dc.description.abstract | We present the results of a search for galaxy clusters and groups in the ∼2 deg^2 of the COSMOS field using all available X-ray observations from the XMM-Newton and Chandra observatories. We reach an X-ray flux limit of 3× 10^{-16} erg cm^{-2 s}^{-1} in the 0.5-2 keV range, and identify 247 X-ray groups with M_{ 200c}=8× 10^{12}-3× 10^{14} M_{☉} at a redshift range of 0.08 ≤ z < 1.53, using the multiband photometric redshift and the master spectroscopic redshift catalogues of the COSMOS. The X-ray centres of groups are determined using high-resolution Chandra imaging. We investigate the relations between the offset of the brightest group galaxies (BGGs) from halo X-ray centre and group properties and compare with predictions from semi-analytic models and hydrodynamical simulations. We find that BGG offset decreases with both increasing halo mass and decreasing redshift with no strong dependence on the X-ray flux and SNR. We show that the BGG offset decreases as a function of increasing magnitude gap with no considerable redshift-dependent trend. The stellar mass of BGGs in observations extends over a wider dynamic range compared to model predictions. At z < 0.5, the central dominant BGGs become more massive than those with large offsets by up to 0.3 dex, in agreement with model prediction. The observed and predicted log-normal scatter in the stellar mass of both low- and large-offset BGGs at fixed halo mass is ∼0.3 dex. | en_US |
dc.language.iso | eng | en_US |
dc.title | Chandra centres for COSMOS X-ray galaxy groups: differences in stellar properties between central dominant and offset brightest group galaxies | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty3203 | en_US |
dc.identifier.scopus | 2-s2.0-85067204500 | en_US |
dc.identifier.isi | 000462280000044 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/483/3/3545/5211093?login=true | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 483 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3545 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | FRA | en_US |
dc.contributor.country | DEU | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019MNRAS.483.3545G | 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.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-6958-0304 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
sty3203-compr.pdf | PDF editoriale | 1.53 MB | Adobe PDF | View/Open |
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