Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26297
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Civano, F. | en_US |
dc.contributor.author | MARCHESI, STEFANO | en_US |
dc.contributor.author | COMASTRI, Andrea | en_US |
dc.contributor.author | Urry, M. C. | en_US |
dc.contributor.author | Elvis, M. | en_US |
dc.contributor.author | Cappelluti, N. | en_US |
dc.contributor.author | Puccetti, S. | en_US |
dc.contributor.author | Brusa, M. | en_US |
dc.contributor.author | Zamorani, G. | en_US |
dc.contributor.author | Hasinger, G. | en_US |
dc.contributor.author | Aldcroft, T. | en_US |
dc.contributor.author | Alexander, D. M. | en_US |
dc.contributor.author | Allevato, V. | en_US |
dc.contributor.author | Brunner, H. | en_US |
dc.contributor.author | Capak, P. | en_US |
dc.contributor.author | Finoguenov, A. | en_US |
dc.contributor.author | Fiore, F. | en_US |
dc.contributor.author | Fruscione, A. | en_US |
dc.contributor.author | GILLI, Roberto | en_US |
dc.contributor.author | Glotfelty, K. | en_US |
dc.contributor.author | Griffiths, R. E. | en_US |
dc.contributor.author | Hao, H. | en_US |
dc.contributor.author | Harrison, F. A. | en_US |
dc.contributor.author | Jahnke, K. | en_US |
dc.contributor.author | Kartaltepe, J. | en_US |
dc.contributor.author | Karim, A. | en_US |
dc.contributor.author | LaMassa, S. M. | en_US |
dc.contributor.author | LANZUISI, Giorgio | en_US |
dc.contributor.author | Miyaji, T. | en_US |
dc.contributor.author | Ranalli, P. | en_US |
dc.contributor.author | Salvato, M. | en_US |
dc.contributor.author | Sargent, M. | en_US |
dc.contributor.author | Scoville, N. J. | en_US |
dc.contributor.author | Schawinski, K. | en_US |
dc.contributor.author | Schinnerer, E. | en_US |
dc.contributor.author | Silverman, J. | en_US |
dc.contributor.author | Smolcic, V. | en_US |
dc.contributor.author | Stern, D. | en_US |
dc.contributor.author | Toft, S. | en_US |
dc.contributor.author | Trakhtenbrot, B. | en_US |
dc.contributor.author | Treister, E. | en_US |
dc.contributor.author | Vignali, C. | en_US |
dc.date.accessioned | 2020-07-03T07:36:28Z | - |
dc.date.available | 2020-07-03T07:36:28Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26297 | - |
dc.description.abstract | The COSMOS-Legacy survey is a 4.6 Ms Chandra program that has imaged 2.2 deg<SUP>2</SUP> of the COSMOS field with an effective exposure of ≃ 160 ks over the central 1.5 deg<SUP>2</SUP> and of ≃ 80 ks in the remaining area. The survey is the combination of 56 new observations obtained as an X-ray Visionary Project with the previous C-COSMOS survey. We describe the reduction and analysis of the new observations and the properties of 2273 point sources detected above a spurious probability of 2 × 10<SUP>-5</SUP>. We also present the updated properties of the C-COSMOS sources detected in the new data. The whole survey includes 4016 point sources (3814, 2920 and 2440 in the full, soft, and hard band). The limiting depths are 2.2 × 10<SUP>-16</SUP>, 1.5 × 10<SUP>-15</SUP>, and 8.9 × 10<SUP>-16</SUP> {\text{erg cm}}<SUP>-2</SUP> {{{s}}}<SUP>-1</SUP> in the 0.5-2, 2-10, and 0.5-10 keV bands, respectively. The observed fraction of obscured active galactic nuclei with a column density >10<SUP>22</SUP> cm<SUP>-2</SUP> from the hardness ratio (HR) is ∼50{}<SUB>-16</SUB><SUP>+17</SUP>%. Given the large sample we compute source number counts in the hard and soft bands, significantly reducing the uncertainties of 5%-10%. For the first time we compute number counts for obscured (HR > -0.2) and unobscured (HR < -0.2) sources and find significant differences between the two populations in the soft band. Due to the unprecedent large exposure, COSMOS-Legacy area is three times larger than surveys at similar depths and its depth is three times fainter than surveys covering similar areas. The area-flux region occupied by COSMOS-Legacy is likely to remain unsurpassed for years to come. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Chandra Cosmos Legacy Survey: Overview and Point Source Catalog | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/819/1/62 | en_US |
dc.identifier.scopus | 2-s2.0-84961795056 | en_US |
dc.identifier.isi | 000372303400062 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/819/1/62 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 819 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 62 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 42 | 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 | DEU | en_US |
dc.contributor.country | CHL | en_US |
dc.contributor.country | HRV | en_US |
dc.contributor.country | DNK | en_US |
dc.contributor.country | FIN | en_US |
dc.contributor.country | JPN | en_US |
dc.contributor.country | GRC | en_US |
dc.contributor.country | MEX | en_US |
dc.contributor.country | CHE | 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 | 2016ApJ...819...62C | 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 | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0001-5544-0749 | - |
crisitem.author.orcid | 0000-0003-3451-9970 | - |
crisitem.author.orcid | 0000-0001-8121-6177 | - |
crisitem.author.orcid | 0000-0001-9094-0984 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Civano_2016_ApJ_819_62.pdf | Pdf editoriale | 4.07 MB | Adobe PDF | View/Open |
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