Matches in SemOpenAlex for { <https://semopenalex.org/work/W2010444039> ?p ?o ?g. }
- W2010444039 endingPage "229" @default.
- W2010444039 startingPage "219" @default.
- W2010444039 abstract "We compute the effect of galactic absorption on active galactic nucleus (AGN) emission in a cosmological context by including a physical model for AGN feeding and feedback in a semianalytic model of galaxy formation. This is based on galaxy interactions as triggers for AGN accretion and on expanding blast waves as a mechanism to propagate outwards the AGN energy injected into the interstellar medium at the center of galaxies. We first test our model against the observed number density of AGNs with different intrinsic luminosities as a function of redshift. The model yields a downsizing behavior in close agreement with the observed one for z 2. At higher redshifts, the model predicts an overall abundance of AGNs (including Compton-thick sources) larger than the observed Compton-thin sources by a factor of ≈2 for z 2 and LX ≤ 1044 erg s−1. Thus, we expect that at such luminosities and redshifts, Compton-thick sources contribute to about 1/2 of the total AGN population. We then investigate the dependence of the absorbing column density NH associated with cold galactic gas (and responsible for the Compton-thin component of the overall obscuration) on AGN luminosity and redshift. We find that the absorbed fraction of AGNs with NH ≥ 1022 cm−2 decreases with luminosity for z ≤ 1. In addition, the total (integrated over luminosity) absorbed fraction increases with redshift up to z ≈ 2, and saturates to the value ≈0.8 at higher redshifts. Finally, we predict that the luminosity dependence of the absorbed fraction of AGNs with LX ≤ 3 × 1044 erg s−1 will weaken with increasing redshift. We compare our results with recent observations and discuss their implications in the context of cosmological models of galaxy formation." @default.
- W2010444039 created "2016-06-24" @default.
- W2010444039 creator A5011270437 @default.
- W2010444039 creator A5051825718 @default.
- W2010444039 creator A5065727790 @default.
- W2010444039 creator A5091734853 @default.
- W2010444039 date "2008-10-10" @default.
- W2010444039 modified "2023-10-16" @default.
- W2010444039 title "The Blast Wave Model for AGN Feedback: Effects on AGN Obscuration" @default.
- W2010444039 cites W1964734365 @default.
- W2010444039 cites W1965134192 @default.
- W2010444039 cites W1965273636 @default.
- W2010444039 cites W1969620672 @default.
- W2010444039 cites W1972809801 @default.
- W2010444039 cites W1973938504 @default.
- W2010444039 cites W1976332187 @default.
- W2010444039 cites W1989379779 @default.
- W2010444039 cites W1994619117 @default.
- W2010444039 cites W1997631586 @default.
- W2010444039 cites W1998577648 @default.
- W2010444039 cites W2003182532 @default.
- W2010444039 cites W2009009580 @default.
- W2010444039 cites W2009345260 @default.
- W2010444039 cites W2012915046 @default.
- W2010444039 cites W2017814476 @default.
- W2010444039 cites W2021168126 @default.
- W2010444039 cites W2022607433 @default.
- W2010444039 cites W2025338816 @default.
- W2010444039 cites W2026082409 @default.
- W2010444039 cites W2029901638 @default.
- W2010444039 cites W2031652791 @default.
- W2010444039 cites W2037777918 @default.
- W2010444039 cites W2039714125 @default.
- W2010444039 cites W2043503871 @default.
- W2010444039 cites W2048770444 @default.
- W2010444039 cites W2051867453 @default.
- W2010444039 cites W2057676648 @default.
- W2010444039 cites W2060357694 @default.
- W2010444039 cites W2062205196 @default.
- W2010444039 cites W2062713883 @default.
- W2010444039 cites W2066886457 @default.
- W2010444039 cites W2078699967 @default.
- W2010444039 cites W2086583767 @default.
- W2010444039 cites W2090459210 @default.
- W2010444039 cites W2091744016 @default.
- W2010444039 cites W2092504858 @default.
- W2010444039 cites W2098737510 @default.
- W2010444039 cites W2100648692 @default.
- W2010444039 cites W2114474276 @default.
- W2010444039 cites W2124219338 @default.
- W2010444039 cites W2125950253 @default.
- W2010444039 cites W2131110256 @default.
- W2010444039 cites W2135894620 @default.
- W2010444039 cites W2143802813 @default.
- W2010444039 cites W2144890838 @default.
- W2010444039 cites W2147074747 @default.
- W2010444039 cites W2154748230 @default.
- W2010444039 cites W2162195514 @default.
- W2010444039 cites W2173493984 @default.
- W2010444039 cites W2903101379 @default.
- W2010444039 cites W3098091163 @default.
- W2010444039 cites W3098673717 @default.
- W2010444039 cites W3098975407 @default.
- W2010444039 cites W3099149995 @default.
- W2010444039 cites W3099428329 @default.
- W2010444039 cites W3099471130 @default.
- W2010444039 cites W3099623275 @default.
- W2010444039 cites W3100079191 @default.
- W2010444039 cites W3100457125 @default.
- W2010444039 cites W3100679294 @default.
- W2010444039 cites W3100976175 @default.
- W2010444039 cites W3101001111 @default.
- W2010444039 cites W3102253521 @default.
- W2010444039 cites W3102732078 @default.
- W2010444039 cites W3103020289 @default.
- W2010444039 cites W3103139228 @default.
- W2010444039 cites W3104587677 @default.
- W2010444039 cites W3106192069 @default.
- W2010444039 cites W3106288306 @default.
- W2010444039 cites W3122112131 @default.
- W2010444039 cites W3124320452 @default.
- W2010444039 cites W4298840641 @default.
- W2010444039 doi "https://doi.org/10.1086/591438" @default.
- W2010444039 hasPublicationYear "2008" @default.
- W2010444039 type Work @default.
- W2010444039 sameAs 2010444039 @default.
- W2010444039 citedByCount "174" @default.
- W2010444039 countsByYear W20104440392012 @default.
- W2010444039 countsByYear W20104440392013 @default.
- W2010444039 countsByYear W20104440392014 @default.
- W2010444039 countsByYear W20104440392015 @default.
- W2010444039 countsByYear W20104440392016 @default.
- W2010444039 countsByYear W20104440392017 @default.
- W2010444039 countsByYear W20104440392018 @default.
- W2010444039 countsByYear W20104440392019 @default.
- W2010444039 countsByYear W20104440392020 @default.
- W2010444039 countsByYear W20104440392021 @default.
- W2010444039 countsByYear W20104440392022 @default.