Matches in SemOpenAlex for { <https://semopenalex.org/work/W2021956724> ?p ?o ?g. }
- W2021956724 endingPage "737" @default.
- W2021956724 startingPage "730" @default.
- W2021956724 abstract "We present a photoionization model study of the effects of microturbulence and dissipative heating on emission lines for number and column densities, elemental abundances, and ionizations typical for the narrow emission line regions (NLRs) of Seyfert galaxies. Earlier studies of NLR spectra generally found good agreement between the observations and the model predictions for most strong emission lines, such as [O III] λ5007, [O II] λ3727, [N II] λ6583, [Ne III] λ3869, and the H and He recombination lines. Nevertheless, the strengths of lines from species with ionization potentials greater than that of He+ (54.4 eV), e.g., N+4 and Ne+4, were often underpredicted. Among the explanations suggested for these discrepancies were (selectively) enhanced elemental abundances and contributions from shock-heated gas. Interestingly, the NLR lines have widths of several 100 km s-1, well in excess of the thermal broadening. If this is due to microturbulence, and the turbulence dissipates within the emission-line gas, the gas can be heated in excess of that due to photoionization. We show that the combined effects of turbulence and dissipative heating can strongly enhance N V λ1240 (relative to He II λ1640), while the heating alone can boost the strength of [Ne V] λ3426. We suggest that this effect is present in the NLR, particularly within ~100 pc of the central engine. Finally, since microturbulence would make clouds robust against instabilities generated during acceleration, it is not likely to be a coincidence that the radially outflowing emission-line gas is turbulent." @default.
- W2021956724 created "2016-06-24" @default.
- W2021956724 creator A5020310545 @default.
- W2021956724 creator A5070767527 @default.
- W2021956724 creator A5077308278 @default.
- W2021956724 date "2007-10-20" @default.
- W2021956724 modified "2023-10-11" @default.
- W2021956724 title "On the Effects of Dissipative Turbulence on the Narrow Emission‐Line Ratios in Seyfert Galaxies" @default.
- W2021956724 cites W1659875532 @default.
- W2021956724 cites W1964869132 @default.
- W2021956724 cites W1965419780 @default.
- W2021956724 cites W1968057618 @default.
- W2021956724 cites W1970112721 @default.
- W2021956724 cites W1972315382 @default.
- W2021956724 cites W1976383916 @default.
- W2021956724 cites W1978462925 @default.
- W2021956724 cites W1978929779 @default.
- W2021956724 cites W1982067798 @default.
- W2021956724 cites W1989928576 @default.
- W2021956724 cites W1992491247 @default.
- W2021956724 cites W1993217083 @default.
- W2021956724 cites W1994700211 @default.
- W2021956724 cites W1996701201 @default.
- W2021956724 cites W1996967904 @default.
- W2021956724 cites W2012001253 @default.
- W2021956724 cites W2018794246 @default.
- W2021956724 cites W2024993550 @default.
- W2021956724 cites W2029988703 @default.
- W2021956724 cites W2035495564 @default.
- W2021956724 cites W2037022639 @default.
- W2021956724 cites W2038139774 @default.
- W2021956724 cites W2039449237 @default.
- W2021956724 cites W2041721739 @default.
- W2021956724 cites W2043986271 @default.
- W2021956724 cites W2044212292 @default.
- W2021956724 cites W2045974263 @default.
- W2021956724 cites W2053483836 @default.
- W2021956724 cites W2059767694 @default.
- W2021956724 cites W2062274730 @default.
- W2021956724 cites W2062549717 @default.
- W2021956724 cites W2064317890 @default.
- W2021956724 cites W2068928940 @default.
- W2021956724 cites W2072905490 @default.
- W2021956724 cites W2075078185 @default.
- W2021956724 cites W2076684695 @default.
- W2021956724 cites W2077559084 @default.
- W2021956724 cites W2081240894 @default.
- W2021956724 cites W2081611317 @default.
- W2021956724 cites W2082225226 @default.
- W2021956724 cites W2083948210 @default.
- W2021956724 cites W2124219338 @default.
- W2021956724 cites W2136076204 @default.
- W2021956724 cites W2139662486 @default.
- W2021956724 cites W2147074747 @default.
- W2021956724 cites W2156621121 @default.
- W2021956724 cites W2296988908 @default.
- W2021956724 cites W3098422398 @default.
- W2021956724 cites W3099244429 @default.
- W2021956724 cites W3099564614 @default.
- W2021956724 cites W3100488511 @default.
- W2021956724 cites W3101265163 @default.
- W2021956724 cites W3102107868 @default.
- W2021956724 cites W3102244065 @default.
- W2021956724 cites W3102812179 @default.
- W2021956724 cites W3103969326 @default.
- W2021956724 cites W3104077014 @default.
- W2021956724 cites W3104791602 @default.
- W2021956724 cites W3106115678 @default.
- W2021956724 cites W3166943066 @default.
- W2021956724 cites W4244818491 @default.
- W2021956724 doi "https://doi.org/10.1086/521272" @default.
- W2021956724 hasPublicationYear "2007" @default.
- W2021956724 type Work @default.
- W2021956724 sameAs 2021956724 @default.
- W2021956724 citedByCount "14" @default.
- W2021956724 countsByYear W20219567242012 @default.
- W2021956724 countsByYear W20219567242016 @default.
- W2021956724 countsByYear W20219567242017 @default.
- W2021956724 countsByYear W20219567242018 @default.
- W2021956724 countsByYear W20219567242019 @default.
- W2021956724 countsByYear W20219567242021 @default.
- W2021956724 countsByYear W20219567242022 @default.
- W2021956724 crossrefType "journal-article" @default.
- W2021956724 hasAuthorship W2021956724A5020310545 @default.
- W2021956724 hasAuthorship W2021956724A5070767527 @default.
- W2021956724 hasAuthorship W2021956724A5077308278 @default.
- W2021956724 hasBestOaLocation W20219567241 @default.
- W2021956724 hasConcept C121332964 @default.
- W2021956724 hasConcept C1276947 @default.
- W2021956724 hasConcept C145148216 @default.
- W2021956724 hasConcept C150846664 @default.
- W2021956724 hasConcept C158749347 @default.
- W2021956724 hasConcept C173220165 @default.
- W2021956724 hasConcept C184779094 @default.
- W2021956724 hasConcept C198291218 @default.
- W2021956724 hasConcept C198352243 @default.
- W2021956724 hasConcept C2524010 @default.
- W2021956724 hasConcept C26141928 @default.