Matches in SemOpenAlex for { <https://semopenalex.org/work/W3080305061> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W3080305061 endingPage "446" @default.
- W3080305061 startingPage "440" @default.
- W3080305061 abstract "We discuss the constraints on the AGN evolution from the cosmic X-ray background and source counts. A syn- thesis model to fit the X-ray background is presented. The data used are a compilation from Gruber (1992), mainly based on HEAO-1 data. The spectrum of type 2 AGN has been modeled including Compton down-scattering within the absorbing ma- terial. We found an improvement when a dependence on redshift of the relative number of obscured sources is introduced. In par- ticular, we found a decrease of the fraction of type 2 AGN at redshifts larger than 2. However, only the soft X-ray counts are well reproduced, while the hard (5-10 keV) BeppoSAX/HELLAS source counts are underestimated by a factor of 1.5. A satisfactory global solution, including the good reproduction of the hard counts, is instead obtained if the XRB normalization, recently obtained from BeppoSAX/MECS measurements (about 30% higher than HEAO-1), is adopted." @default.
- W3080305061 created "2020-09-01" @default.
- W3080305061 creator A5026031896 @default.
- W3080305061 creator A5029486654 @default.
- W3080305061 creator A5075017800 @default.
- W3080305061 date "2000-01-01" @default.
- W3080305061 modified "2023-10-18" @default.
- W3080305061 title "The X-ray background and the evolution of AGN" @default.
- W3080305061 hasPublicationYear "2000" @default.
- W3080305061 type Work @default.
- W3080305061 sameAs 3080305061 @default.
- W3080305061 citedByCount "1" @default.
- W3080305061 crossrefType "journal-article" @default.
- W3080305061 hasAuthorship W3080305061A5026031896 @default.
- W3080305061 hasAuthorship W3080305061A5029486654 @default.
- W3080305061 hasAuthorship W3080305061A5075017800 @default.
- W3080305061 hasConcept C120665830 @default.
- W3080305061 hasConcept C121332964 @default.
- W3080305061 hasConcept C1276947 @default.
- W3080305061 hasConcept C136886441 @default.
- W3080305061 hasConcept C144024400 @default.
- W3080305061 hasConcept C19165224 @default.
- W3080305061 hasConcept C2777119676 @default.
- W3080305061 hasConcept C2779328170 @default.
- W3080305061 hasConcept C2781428845 @default.
- W3080305061 hasConcept C33024259 @default.
- W3080305061 hasConcept C43481613 @default.
- W3080305061 hasConcept C44870925 @default.
- W3080305061 hasConcept C59375849 @default.
- W3080305061 hasConcept C98444146 @default.
- W3080305061 hasConceptScore W3080305061C120665830 @default.
- W3080305061 hasConceptScore W3080305061C121332964 @default.
- W3080305061 hasConceptScore W3080305061C1276947 @default.
- W3080305061 hasConceptScore W3080305061C136886441 @default.
- W3080305061 hasConceptScore W3080305061C144024400 @default.
- W3080305061 hasConceptScore W3080305061C19165224 @default.
- W3080305061 hasConceptScore W3080305061C2777119676 @default.
- W3080305061 hasConceptScore W3080305061C2779328170 @default.
- W3080305061 hasConceptScore W3080305061C2781428845 @default.
- W3080305061 hasConceptScore W3080305061C33024259 @default.
- W3080305061 hasConceptScore W3080305061C43481613 @default.
- W3080305061 hasConceptScore W3080305061C44870925 @default.
- W3080305061 hasConceptScore W3080305061C59375849 @default.
- W3080305061 hasConceptScore W3080305061C98444146 @default.
- W3080305061 hasIssue "2" @default.
- W3080305061 hasLocation W30803050611 @default.
- W3080305061 hasOpenAccess W3080305061 @default.
- W3080305061 hasPrimaryLocation W30803050611 @default.
- W3080305061 hasRelatedWork W1485937831 @default.
- W3080305061 hasRelatedWork W1512249731 @default.
- W3080305061 hasRelatedWork W1556981437 @default.
- W3080305061 hasRelatedWork W1627300563 @default.
- W3080305061 hasRelatedWork W1772029887 @default.
- W3080305061 hasRelatedWork W1827242093 @default.
- W3080305061 hasRelatedWork W1983662224 @default.
- W3080305061 hasRelatedWork W2025338816 @default.
- W3080305061 hasRelatedWork W2067499238 @default.
- W3080305061 hasRelatedWork W2071467057 @default.
- W3080305061 hasRelatedWork W2086519344 @default.
- W3080305061 hasRelatedWork W2111585845 @default.
- W3080305061 hasRelatedWork W2327320261 @default.
- W3080305061 hasRelatedWork W2646945504 @default.
- W3080305061 hasRelatedWork W3013819128 @default.
- W3080305061 hasRelatedWork W3098395245 @default.
- W3080305061 hasRelatedWork W3100211458 @default.
- W3080305061 hasRelatedWork W3103857413 @default.
- W3080305061 hasRelatedWork W3104255179 @default.
- W3080305061 hasRelatedWork W3123079375 @default.
- W3080305061 hasVolume "353" @default.
- W3080305061 isParatext "false" @default.
- W3080305061 isRetracted "false" @default.
- W3080305061 magId "3080305061" @default.
- W3080305061 workType "article" @default.