Matches in SemOpenAlex for { <https://semopenalex.org/work/W3105057984> ?p ?o ?g. }
- W3105057984 endingPage "488" @default.
- W3105057984 startingPage "463" @default.
- W3105057984 abstract "We have investigated the physical conditions in the narrow-line region (NLR) of M51 by using long-slit spectra obtained with the Space Telescope Imaging Spectrograph aboard the Hubble Space Telescope and 3.6 cm radio continuum observations obtained with the Very Large Array. Emission-line diagnostics were employed for nine NLR clouds, which extend 25 (102 pc) from the nucleus, to examine the electron density, temperature, and ionization state of the NLR gas. The emission-line ratios are consistent with those typically found in Seyfert nuclei and indicate that within the inner near-nuclear region (r ≲ 1'') the ionization decreases with increasing radius. Upper limits to the [O III] electron temperature (Te ≲ 11,000 K) for the inner NLR clouds indicate that photoionization is the dominant ionization mechanism close to the nucleus. The emission-line fluxes for most of the NLR clouds can be reproduced reasonably well by simple photoionization models using a central power-law continuum source and supersolar nitrogen abundances. Shock+precursor models, however, provide a better fit to the observed fluxes of an NLR cloud ~25 south of the nucleus that is identified with the extranuclear cloud. The large [O III] electron temperature of this cloud (Te = 24,000 K) further suggests the presence of shocks. This cloud is straddled by two radio knots and lies near the location where a weak radio jet, ~25 (102 pc) in extent, connects the near-nuclear radio emission with a diffuse lobe structure spanning ~4'' (163 pc). It is plausible that this cloud represents the location where the radio jet impinges on the disk ISM." @default.
- W3105057984 created "2020-11-23" @default.
- W3105057984 creator A5044716132 @default.
- W3105057984 creator A5063569102 @default.
- W3105057984 creator A5080522757 @default.
- W3105057984 date "2004-03-10" @default.
- W3105057984 modified "2023-10-14" @default.
- W3105057984 title "Physical Conditions in the Narrow‐Line Region of M51" @default.
- W3105057984 cites W1619013860 @default.
- W3105057984 cites W1963998979 @default.
- W3105057984 cites W1964856861 @default.
- W3105057984 cites W1966185800 @default.
- W3105057984 cites W1967417389 @default.
- W3105057984 cites W1967876247 @default.
- W3105057984 cites W1970112721 @default.
- W3105057984 cites W1970248503 @default.
- W3105057984 cites W1971642976 @default.
- W3105057984 cites W1971899399 @default.
- W3105057984 cites W1972838140 @default.
- W3105057984 cites W1973513081 @default.
- W3105057984 cites W1985321813 @default.
- W3105057984 cites W1985892170 @default.
- W3105057984 cites W1993230081 @default.
- W3105057984 cites W1994396076 @default.
- W3105057984 cites W1994700211 @default.
- W3105057984 cites W2002197327 @default.
- W3105057984 cites W2003585381 @default.
- W3105057984 cites W2004383372 @default.
- W3105057984 cites W2006485997 @default.
- W3105057984 cites W2007118519 @default.
- W3105057984 cites W2008720744 @default.
- W3105057984 cites W2010863594 @default.
- W3105057984 cites W2011927288 @default.
- W3105057984 cites W2012056991 @default.
- W3105057984 cites W2013711195 @default.
- W3105057984 cites W2023184232 @default.
- W3105057984 cites W2024781889 @default.
- W3105057984 cites W2024993550 @default.
- W3105057984 cites W2026188443 @default.
- W3105057984 cites W2028819919 @default.
- W3105057984 cites W2030182952 @default.
- W3105057984 cites W2033423226 @default.
- W3105057984 cites W2034118736 @default.
- W3105057984 cites W2034489735 @default.
- W3105057984 cites W2036750183 @default.
- W3105057984 cites W2037140983 @default.
- W3105057984 cites W2041429415 @default.
- W3105057984 cites W2043071509 @default.
- W3105057984 cites W2043201000 @default.
- W3105057984 cites W2044212292 @default.
- W3105057984 cites W2046555179 @default.
- W3105057984 cites W2051364438 @default.
- W3105057984 cites W2052009095 @default.
- W3105057984 cites W2054861885 @default.
- W3105057984 cites W2055674375 @default.
- W3105057984 cites W2058865883 @default.
- W3105057984 cites W2061700487 @default.
- W3105057984 cites W2066255054 @default.
- W3105057984 cites W2066946900 @default.
- W3105057984 cites W2067549220 @default.
- W3105057984 cites W2068928940 @default.
- W3105057984 cites W2072905490 @default.
- W3105057984 cites W2078421845 @default.
- W3105057984 cites W2079854010 @default.
- W3105057984 cites W2079855974 @default.
- W3105057984 cites W2088134590 @default.
- W3105057984 cites W2089662520 @default.
- W3105057984 cites W2091306090 @default.
- W3105057984 cites W2110294314 @default.
- W3105057984 cites W2134406144 @default.
- W3105057984 cites W2159036184 @default.
- W3105057984 cites W2163328792 @default.
- W3105057984 cites W2167917452 @default.
- W3105057984 cites W2178336115 @default.
- W3105057984 cites W2270637217 @default.
- W3105057984 cites W2484036924 @default.
- W3105057984 cites W2569534441 @default.
- W3105057984 cites W26931981 @default.
- W3105057984 cites W2963655144 @default.
- W3105057984 cites W3098951039 @default.
- W3105057984 cites W3099107160 @default.
- W3105057984 cites W3099244429 @default.
- W3105057984 cites W3101243765 @default.
- W3105057984 cites W3102198414 @default.
- W3105057984 cites W3103829926 @default.
- W3105057984 cites W3166943066 @default.
- W3105057984 cites W4244818491 @default.
- W3105057984 cites W4251196556 @default.
- W3105057984 cites W60100557 @default.
- W3105057984 doi "https://doi.org/10.1086/381680" @default.
- W3105057984 hasPublicationYear "2004" @default.
- W3105057984 type Work @default.
- W3105057984 sameAs 3105057984 @default.
- W3105057984 citedByCount "60" @default.
- W3105057984 countsByYear W31050579842012 @default.
- W3105057984 countsByYear W31050579842013 @default.
- W3105057984 countsByYear W31050579842015 @default.
- W3105057984 countsByYear W31050579842016 @default.