FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2058697899> ?p ?o ?g. }

• W2058697899 endingPage "135" @default.
• W2058697899 startingPage "124" @default.
• W2058697899 abstract "We present Spitzer mid-infrared spectra of 12 Seyfert 1.8 and 1.9 galaxies over the 5-38 μm region. We compare the spectral characteristics of this sample to those of 58 Seyfert 1 and 2 galaxies from the Spitzer archives. An analysis of the spectral shapes, the silicate 10 μm feature and the emission-line fluxes have enabled us to characterize the mid-IR properties of Seyfert 1.8/1.9s. We find that the EWs of the 10 μm silicate feature are generally weak in all Seyfert galaxies, as previously reported by several studies. The few Seyfert galaxies in this sample that show deep 10 μm silicate absorption features are highly inclined and/or merging galaxies. It is likely that these absorption features originate primarily in the dusty interstellar medium of the host galaxy rather than in a dusty torus on parsec scales close to the central engine. We find that the EW of the PAH band at 6.2 μm correlates strongly with the 20-30 μm spectral index. Either of these quantities is a good indicator of the amount of starburst contribution to the mid-IR spectra. The spectra of Seyfert 1.8s and 1.9s are dominated by these starburst features, similar to most Seyfert 2s. They show strong PAH bands and a strong red continuum toward 30 μm. The strengths of the high-ionization forbidden narrow emission lines [O IV] 25.89 μm, [Ne III] 15.56 μm, and [Ne V] 14.32 μm relative to [Ne II] 12.81 μm are weaker in Seyfert 1.8/1.9s and Seyfert 2s than in Seyfert 1s. The weakness of high-ionization lines in Seyfert 1.8-1.9s is suggestive of intrinsically weak AGN continua and/or stronger star formation activity leading to enhanced [Ne II]. We discuss the implications of these observational results in the context of the unified model of AGNs." @default.
• W2058697899 created "2016-06-24" @default.
• W2058697899 creator A5023602707 @default.
• W2058697899 creator A5024808908 @default.
• W2058697899 creator A5029489687 @default.
• W2058697899 creator A5032740412 @default.
• W2058697899 creator A5046233800 @default.
• W2058697899 creator A5070767527 @default.
• W2058697899 creator A5091213507 @default.
• W2058697899 date "2007-12-10" @default.
• W2058697899 modified "2023-09-24" @default.
• W2058697899 title "<i>Spitzer</i>IRS Observations of Seyfert 1.8 and 1.9 Galaxies: A Comparison with Seyfert 1 and Seyfert 2" @default.
• W2058697899 cites W1964243753 @default.
• W2058697899 cites W1966320264 @default.
• W2058697899 cites W1978188520 @default.
• W2058697899 cites W1979115990 @default.
• W2058697899 cites W1981936828 @default.
• W2058697899 cites W1990732800 @default.
• W2058697899 cites W1997106536 @default.
• W2058697899 cites W1999818838 @default.
• W2058697899 cites W2018858432 @default.
• W2058697899 cites W2021168126 @default.
• W2058697899 cites W2024235708 @default.
• W2058697899 cites W2031560106 @default.
• W2058697899 cites W2038082407 @default.
• W2058697899 cites W2041216883 @default.
• W2058697899 cites W2048755753 @default.
• W2058697899 cites W2065155014 @default.
• W2058697899 cites W2071631450 @default.
• W2058697899 cites W2122903002 @default.
• W2058697899 cites W2124219338 @default.
• W2058697899 cites W2136576103 @default.
• W2058697899 cites W2155475085 @default.
• W2058697899 cites W3011648422 @default.
• W2058697899 cites W3098606601 @default.
• W2058697899 cites W3099270657 @default.
• W2058697899 cites W3105478769 @default.
• W2058697899 cites W3121595855 @default.
• W2058697899 cites W4302778843 @default.
• W2058697899 doi "https://doi.org/10.1086/522823" @default.
• W2058697899 hasPublicationYear "2007" @default.
• W2058697899 type Work @default.
• W2058697899 sameAs 2058697899 @default.
• W2058697899 citedByCount "66" @default.
• W2058697899 countsByYear W20586978992012 @default.
• W2058697899 countsByYear W20586978992013 @default.
• W2058697899 countsByYear W20586978992014 @default.
• W2058697899 countsByYear W20586978992015 @default.
• W2058697899 countsByYear W20586978992016 @default.
• W2058697899 countsByYear W20586978992017 @default.
• W2058697899 countsByYear W20586978992018 @default.
• W2058697899 countsByYear W20586978992019 @default.
• W2058697899 countsByYear W20586978992020 @default.
• W2058697899 countsByYear W20586978992021 @default.
• W2058697899 crossrefType "journal-article" @default.
• W2058697899 hasAuthorship W2058697899A5023602707 @default.
• W2058697899 hasAuthorship W2058697899A5024808908 @default.
• W2058697899 hasAuthorship W2058697899A5029489687 @default.
• W2058697899 hasAuthorship W2058697899A5032740412 @default.
• W2058697899 hasAuthorship W2058697899A5046233800 @default.
• W2058697899 hasAuthorship W2058697899A5070767527 @default.
• W2058697899 hasAuthorship W2058697899A5091213507 @default.
• W2058697899 hasBestOaLocation W20586978991 @default.
• W2058697899 hasConcept C121332964 @default.
• W2058697899 hasConcept C1276947 @default.
• W2058697899 hasConcept C158355884 @default.
• W2058697899 hasConcept C196939603 @default.
• W2058697899 hasConcept C2524010 @default.
• W2058697899 hasConcept C2777335606 @default.
• W2058697899 hasConcept C33923547 @default.
• W2058697899 hasConcept C44870925 @default.
• W2058697899 hasConcept C4839761 @default.
• W2058697899 hasConcept C89108925 @default.
• W2058697899 hasConcept C96141758 @default.
• W2058697899 hasConcept C9767117 @default.
• W2058697899 hasConcept C98444146 @default.
• W2058697899 hasConceptScore W2058697899C121332964 @default.
• W2058697899 hasConceptScore W2058697899C1276947 @default.
• W2058697899 hasConceptScore W2058697899C158355884 @default.
• W2058697899 hasConceptScore W2058697899C196939603 @default.
• W2058697899 hasConceptScore W2058697899C2524010 @default.
• W2058697899 hasConceptScore W2058697899C2777335606 @default.
• W2058697899 hasConceptScore W2058697899C33923547 @default.
• W2058697899 hasConceptScore W2058697899C44870925 @default.
• W2058697899 hasConceptScore W2058697899C4839761 @default.
• W2058697899 hasConceptScore W2058697899C89108925 @default.
• W2058697899 hasConceptScore W2058697899C96141758 @default.
• W2058697899 hasConceptScore W2058697899C9767117 @default.
• W2058697899 hasConceptScore W2058697899C98444146 @default.
• W2058697899 hasIssue "1" @default.
• W2058697899 hasLocation W20586978991 @default.
• W2058697899 hasLocation W20586978992 @default.
• W2058697899 hasLocation W20586978993 @default.
• W2058697899 hasLocation W20586978994 @default.
• W2058697899 hasOpenAccess W2058697899 @default.
• W2058697899 hasPrimaryLocation W20586978991 @default.
• W2058697899 hasRelatedWork W1922699913 @default.
• W2058697899 hasRelatedWork W1968795488 @default.

• next