Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/34386
DC Field | Value | Language |
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dc.contributor.author | Zhao, X. | en_US |
dc.contributor.author | Civano, F. | en_US |
dc.contributor.author | Fornasini, F. M. | en_US |
dc.contributor.author | Alexander, D. M. | en_US |
dc.contributor.author | Cappelluti, N. | en_US |
dc.contributor.author | Chen, C. T. | en_US |
dc.contributor.author | Cohen, S. H. | en_US |
dc.contributor.author | Elvis, M. | en_US |
dc.contributor.author | Gandhi, P. | en_US |
dc.contributor.author | Grogin, N. A. | en_US |
dc.contributor.author | Hickox, R. C. | en_US |
dc.contributor.author | Jansen, R. A. | en_US |
dc.contributor.author | Koekemoer, A. | en_US |
dc.contributor.author | LANZUISI, Giorgio | en_US |
dc.contributor.author | Maksym, W. P. | en_US |
dc.contributor.author | Masini, A. | en_US |
dc.contributor.author | Rosario, D. J. | en_US |
dc.contributor.author | Ward, M. J. | en_US |
dc.contributor.author | Willmer, C. N. A. | en_US |
dc.contributor.author | Windhorst, R. A. | en_US |
dc.date.accessioned | 2023-09-13T12:23:04Z | - |
dc.date.available | 2023-09-13T12:23:04Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/34386 | - |
dc.description.abstract | We present the NuSTAR extragalactic survey of the James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-Domain Field. The survey covers a ~0.16 deg<SUP>2</SUP> area with a total exposure of 681 ks acquired in a total of nine observations from three epochs. The survey sensitivities at 20 per cent of the area are 2.39, 1.14, 2.76, 1.52, and 5.20 × 10<SUP>-14</SUP> erg cm<SUP>-2</SUP> s<SUP>-1</SUP> in the 3-24, 3-8, 8-24, 8-16, and 16-24 keV bands, respectively. The NEP survey is one of the most sensitive extragalactic surveys with NuSTAR so far. A total of 33 sources were detected above 95 per cent reliability in at least one of the five bands. We present the number counts, logN-logS, measured in the hard X-ray 8-24 and 8-16 keV bands, uniquely accessible by NuSTAR down to such faint fluxes. We performed source detection on the XMM-Newton and Chandra observations of the same field to search for soft X-ray counterparts of each NuSTAR detection. The soft band positions were used to identify optical and infrared associations. We present the X-ray properties (hardness ratio and luminosity) and optical-to-X-ray properties of the detected sources. The measured fraction of candidate Compton-thick (N$\rm _H\ge 10^{24}\, cm^{-2}$) active galactic nuclei, derived from the hardness ratio, is between 3 and 27 per cent. As this survey was designed to have variability as its primary focus, we present preliminary results on multiepoch flux variability in the 3-24 keV band. | en_US |
dc.language.iso | eng | en_US |
dc.title | The NuSTAR extragalactic survey of the James Webb Space Telescope North Ecliptic Pole time-domain field | en_US |
dc.identifier.doi | 10.1093/mnras/stab2885 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/508/4/5176/6382142 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 508 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 5176 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 20 | 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.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.identifier.adsbibcode | 2021MNRAS.508.5176Z | 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.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0001-9094-0984 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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stab2885.pdf | PDF editoriale | 5.98 MB | Adobe PDF | View/Open |
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