Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31101
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Iwasawa, K. | en_US |
dc.contributor.author | COMASTRI, Andrea | en_US |
dc.contributor.author | Vignali, C. | en_US |
dc.contributor.author | GILLI, Roberto | en_US |
dc.contributor.author | LANZUISI, Giorgio | en_US |
dc.contributor.author | Brandt, W. N. | en_US |
dc.contributor.author | TOZZI, Paolo | en_US |
dc.contributor.author | Brusa, M. | en_US |
dc.contributor.author | Carrera, F. J. | en_US |
dc.contributor.author | Ranalli, P. | en_US |
dc.contributor.author | Mainieri, V. | en_US |
dc.contributor.author | Georgantopoulos, I. | en_US |
dc.contributor.author | Puccetti, S. | en_US |
dc.contributor.author | Paolillo, Maurizio | en_US |
dc.date.accessioned | 2021-11-17T09:38:28Z | - |
dc.date.available | 2021-11-17T09:38:28Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31101 | - |
dc.description.abstract | We present the X-ray spectra of 185 bright sources detected in the XMM-Newton deep survey of the Chandra Deep Field South with the three EPIC cameras combined. The 2-10 keV flux limit of the sample is 2 × 10<SUP>-15</SUP> erg s<SUP>-1</SUP> cm<SUP>-2</SUP>. The sources are distributed over a redshift range of z = 0.1-3.8, with 11 new X-ray redshift measurements included. A spectral analysis was performed using a simple model to obtain absorbing column densities, rest-frame 2-10 keV luminosities, and Fe K line properties of 180 sources at z > 0.4. Obscured AGN are found to be more abundant toward higher redshifts. Using the XMM-Newton data alone, seven Compton-thick AGN candidates were identified, which set the Compton-thick AGN fraction at ≃4%. An exploratory spectral inspection method with two rest-frame X-ray colours and an Fe line strength indicator was introduced and tested against the results from spectral fitting. This method works reasonably well to characterise a spectral shape and can be useful for a pre-selection of Compton-thick AGN candidates. We found six objects exhibiting broad Fe K lines out of 21 unobscured AGN of best data quality, implying a detection rate of ∼30%. Five redshift spikes, each with more than six sources, are identified in the redshift distribution of the X-ray sources. Contrary to the overall trend, the sources at the two higher redshift spikes, at z = 1.61 and z = 2.57, exhibit a puzzlingly low obscuration. <P />Full Table 1 and data for Fig. 2 are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/639/A51">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/639/A51</A> | en_US |
dc.language.iso | eng | en_US |
dc.title | The XMM deep survey in the CDFS. XI. X-ray spectral properties of 185 bright sources | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201937246 | en_US |
dc.identifier.scopus | 2-s2.0-85088290534 | en_US |
dc.identifier.isi | WOS:000550016800001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/full_html/2020/07/aa37246-19/aa37246-19.html | en_US |
dc.identifier.url | http://arxiv.org/abs/2004.07604v2 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 639 | en_US |
dc.relation.firstpage | A51 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020A&A...639A..51I | 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 | 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.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0003-3451-9970 | - |
crisitem.author.orcid | 0000-0001-8121-6177 | - |
crisitem.author.orcid | 0000-0001-9094-0984 | - |
crisitem.author.orcid | 0000-0003-3096-9966 | - |
crisitem.author.orcid | 0000-0003-4210-7693 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
aa37246-19.pdf | PDF editoriale | 2.13 MB | Adobe PDF | View/Open |
2004.07604.pdf | preprint | 1.95 MB | Adobe PDF | View/Open |
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