Matches in SemOpenAlex for { <https://semopenalex.org/work/W44957918> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W44957918 abstract "ROSAT deep and shallow surveys have provided an almost complete inventory of the constituents of the soft X-ray background which led to a population synthesis model for the whole X-ray background with interesting cosmological consequences. According to this model the X-ray background is the “echo” of mass accretion onto supermassive black holes, integrated over cosmic time. A new determination of the soft X-ray luminosity function of active galactic nuclei (AGN) is consistent with pure density evolution, and the comoving volume density of AGN at redshift 2–3 approaches that of local normal galaxies. This indicates that many larger galaxies contain black holes and it is likely that the bulk of the black holes was produced before most of the stars in the universe. However, only X-ray surveys in the harder energy bands, where the maximum of the energy density of the X-ray background resides, will provide the acid test of this picture." @default.
- W44957918 created "2016-06-24" @default.
- W44957918 creator A5054181223 @default.
- W44957918 date "1999-01-01" @default.
- W44957918 modified "2023-09-25" @default.
- W44957918 title "The X-Ray Background and the AGN Luminosity Function" @default.
- W44957918 cites W1498557255 @default.
- W44957918 cites W1670082337 @default.
- W44957918 cites W1981780603 @default.
- W44957918 cites W2005283866 @default.
- W44957918 cites W2034287759 @default.
- W44957918 cites W2036926983 @default.
- W44957918 cites W2040389071 @default.
- W44957918 cites W2040842008 @default.
- W44957918 cites W2071051988 @default.
- W44957918 cites W2091957074 @default.
- W44957918 cites W2165543717 @default.
- W44957918 cites W2167422930 @default.
- W44957918 doi "https://doi.org/10.1017/s007418090013253x" @default.
- W44957918 hasPublicationYear "1999" @default.
- W44957918 type Work @default.
- W44957918 sameAs 44957918 @default.
- W44957918 citedByCount "0" @default.
- W44957918 crossrefType "journal-article" @default.
- W44957918 hasAuthorship W44957918A5054181223 @default.
- W44957918 hasBestOaLocation W449579181 @default.
- W44957918 hasConcept C120665830 @default.
- W44957918 hasConcept C121332964 @default.
- W44957918 hasConcept C12287442 @default.
- W44957918 hasConcept C1276947 @default.
- W44957918 hasConcept C14036430 @default.
- W44957918 hasConcept C153385146 @default.
- W44957918 hasConcept C17959413 @default.
- W44957918 hasConcept C187970030 @default.
- W44957918 hasConcept C2777119676 @default.
- W44957918 hasConcept C43481613 @default.
- W44957918 hasConcept C44870925 @default.
- W44957918 hasConcept C78458016 @default.
- W44957918 hasConcept C86803240 @default.
- W44957918 hasConcept C98444146 @default.
- W44957918 hasConceptScore W44957918C120665830 @default.
- W44957918 hasConceptScore W44957918C121332964 @default.
- W44957918 hasConceptScore W44957918C12287442 @default.
- W44957918 hasConceptScore W44957918C1276947 @default.
- W44957918 hasConceptScore W44957918C14036430 @default.
- W44957918 hasConceptScore W44957918C153385146 @default.
- W44957918 hasConceptScore W44957918C17959413 @default.
- W44957918 hasConceptScore W44957918C187970030 @default.
- W44957918 hasConceptScore W44957918C2777119676 @default.
- W44957918 hasConceptScore W44957918C43481613 @default.
- W44957918 hasConceptScore W44957918C44870925 @default.
- W44957918 hasConceptScore W44957918C78458016 @default.
- W44957918 hasConceptScore W44957918C86803240 @default.
- W44957918 hasConceptScore W44957918C98444146 @default.
- W44957918 hasLocation W449579181 @default.
- W44957918 hasOpenAccess W44957918 @default.
- W44957918 hasPrimaryLocation W449579181 @default.
- W44957918 hasRelatedWork W1564732563 @default.
- W44957918 hasRelatedWork W1658116565 @default.
- W44957918 hasRelatedWork W1772029887 @default.
- W44957918 hasRelatedWork W1827242093 @default.
- W44957918 hasRelatedWork W1836044737 @default.
- W44957918 hasRelatedWork W1986812103 @default.
- W44957918 hasRelatedWork W2030047626 @default.
- W44957918 hasRelatedWork W2159008044 @default.
- W44957918 hasRelatedWork W2999835405 @default.
- W44957918 hasRelatedWork W3011567293 @default.
- W44957918 hasRelatedWork W3014927803 @default.
- W44957918 hasRelatedWork W3019123169 @default.
- W44957918 hasRelatedWork W3084084013 @default.
- W44957918 hasRelatedWork W3092667421 @default.
- W44957918 hasRelatedWork W3103857413 @default.
- W44957918 hasRelatedWork W3122217315 @default.
- W44957918 hasRelatedWork W3163798514 @default.
- W44957918 hasRelatedWork W3188347298 @default.
- W44957918 hasRelatedWork W67013515 @default.
- W44957918 hasRelatedWork W99576241 @default.
- W44957918 isParatext "false" @default.
- W44957918 isRetracted "false" @default.
- W44957918 magId "44957918" @default.
- W44957918 workType "article" @default.