Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30729
DC Field | Value | Language |
---|---|---|
dc.contributor.author | MARCHESI, STEFANO | en_US |
dc.contributor.author | Ajello, M. | en_US |
dc.contributor.author | Zhao, X. | en_US |
dc.contributor.author | Marcotulli, L. | en_US |
dc.contributor.author | Baloković, M. | en_US |
dc.contributor.author | Brightman, M. | en_US |
dc.contributor.author | COMASTRI, Andrea | en_US |
dc.contributor.author | CUSUMANO, GIANCARLO | en_US |
dc.contributor.author | LANZUISI, Giorgio | en_US |
dc.contributor.author | LA PAROLA, VALENTINA | en_US |
dc.contributor.author | SEGRETO, ALBERTO | en_US |
dc.contributor.author | Vignali, C. | en_US |
dc.date.accessioned | 2021-04-12T08:20:24Z | - |
dc.date.available | 2021-04-12T08:20:24Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30729 | - |
dc.description.abstract | We present the analysis of a sample of 35 candidate Compton-thick active galactic nuclei (AGNs) selected in the nearby universe (average redshift < z> ∼ 0.03) with the Swift-BAT 100-month survey. All sources have available NuSTAR data, thus allowing us to constrain with unprecedented quality important spectral parameters such as the obscuring torus line-of-sight column density (N_H,z), the average torus column density (N_H,tor), and the torus covering factor (f_c ). We compare the best-fit results obtained with the widely used MYTorus (Murphy & Yaqoob 2009) model with those of the recently published borus02 model (Baloković et al. 2018) used in the same geometrical configuration of MYTorus (i.e., with f_c = 0.5). We find a remarkable agreement between the two, although with increasing dispersion in N_H,z moving toward higher column densities. We then use borus02 to measure f_c . High-f_c sources have, on average, smaller offset between N_H,z and N_H,tor than low-f_c ones. Therefore, low f_c values can be linked to a “patchy torus” scenario, where the AGN is seen through an overdense region in the torus, while high-f_c objects are more likely to be obscured by a more uniform gas distribution. Finally, we find potential evidence of an inverse trend between f_c and the AGN 2-10 keV luminosity, i.e., sources with higher f_c values have on average lower luminosities. | en_US |
dc.language.iso | eng | en_US |
dc.title | Compton-thick AGNs in the NuSTAR Era. III. A Systematic Study of the Torus Covering Factor | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/aafbeb | en_US |
dc.identifier.scopus | s2.0-85062039779 | en_US |
dc.identifier.isi | 000458043400008 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/aafbeb | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 872 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 8 | en_US |
dc.relation.numberofpages | 19 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 12 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | 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 | 2019ApJ...872....8M | 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 | IASF Palermo | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.orcid | 0000-0001-5544-0749 | - |
crisitem.author.orcid | 0000-0003-3451-9970 | - |
crisitem.author.orcid | 0000-0002-8151-1990 | - |
crisitem.author.orcid | 0000-0001-9094-0984 | - |
crisitem.author.orcid | 0000-0002-8087-6488 | - |
crisitem.author.orcid | 0000-0001-7341-6603 | - |
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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Marchesi_2019_ApJ_872_8.pdf | Pdf editoriale | 1.06 MB | Adobe PDF | View/Open |
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