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dc.contributor.author | Fanali, R. | - |
dc.contributor.author | Caccianiga, A. | - |
dc.contributor.author | Severgnini, P. | - |
dc.contributor.author | Della Ceca, R. | - |
dc.contributor.author | Marchese, E. | - |
dc.contributor.author | Carrera, Francisco J. | - |
dc.contributor.author | Corral, Amalia | - |
dc.contributor.author | Mateos, Silvia | - |
dc.date.accessioned | 2015-01-30T11:41:38Z | - |
dc.date.available | 2015-01-30T11:41:38Z | - |
dc.date.issued | 2013 | - |
dc.identifier | doi: 10.1093/mnras/stt757 | - |
dc.identifier | issn: 0035-8711 | - |
dc.identifier | e-issn: 1365-2966 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society 433(1): 648-658 (2013) | - |
dc.identifier.uri | http://hdl.handle.net/10261/109985 | - |
dc.description.abstract | We study the link between the X-ray emission in radio-quiet active galactic nuclei (AGN) and the accretion rate on the central supermassive black hole using a statistically well-defined and representative sample of 71 type 1 AGN extracted from the XMM-Newton Bright Serendipitous Survey. We search and quantify the statistical correlations between some fundamental parameters that characterize the X-ray emission, i.e. the X-ray spectral slope, Γ, and the X-ray'loudness', and the accretion rate, both absolute (Ṁ) and normalized to the Eddington luminosity(Eddington ratio, λ).We parametrize the X-ray loudness using three different quantities: the bolometric correction Kbol, the two-point spectral index αOX and the disc/corona luminosity ratio. We find that the X-ray spectral index depends on the normalized accretion rate while the 'X-ray loudness' depends on both the normalized and the absolute accretion rate. The dependence on the Eddington ratio, in particular, is probably induced by the Γ- λ correlation. The two proxies usually adopted in the literature to quantify the X-ray loudness of an AGN, i.e. Kbol and αOX, behave differently, with Kbol being more sensitive to the Eddington ratio and aOX having a stronger dependence with the absolute accretion. The explanation of this result is likely related to the different sensitivity of the two parameters to the X-ray spectral index. | - |
dc.description.sponsorship | The authors acknowledge financial support from ASI (grant n. I/088/06/0), from the Italian Ministry of Education, Universities and Research (PRIN2010-2011, grant n. 2010NHBSBE) and from the Spanish Ministry of Economy and Competitiveness through grant AYA2012-31447. | - |
dc.publisher | Oxford University Press | - |
dc.publisher | Royal Astronomical Society | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Studying the relationship between X-ray emission and accretion in AGN using the XMM-Newton bright serendipitous survey | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1093/mnras/stt757 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1093/mnras/stt757 | - |
dc.date.updated | 2015-01-30T11:41:38Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Ministero dell'Istruzione, dell'Università e della Ricerca | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003407 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
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Studying the relationship between.pdf | 715,36 kB | Adobe PDF | Visualizar/Abrir |
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