FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4229458093> ?p ?o ?g. }

• W4229458093 endingPage "A35" @default.
• W4229458093 startingPage "A35" @default.
• W4229458093 abstract "Context. Active galactic nuclei play a key role in the evolution of galaxies, but their inner workings and physical connection to the host are poorly understood due to a lack of angular resolution. Infrared interferometry makes it possible to resolve the circumnuclear dust in the nearby Seyfert 2 galaxy, the Circinus Galaxy. Previous observations have revealed complex structures and polar dust emission but interpretation was limited to simple models. The new Multi AperTure mid-Infrared Spectro-Scopic Experiment (MATISSE) makes it possible to image these structures for the first time. Aims. We aim to precisely map the morphology and temperature of the dust surrounding the supermassive black hole through interferometric imaging. Methods. We observed the Circinus Galaxy with MATISSE at the Very Large Telescope Interferometer (VLTI), producing 150 correlated flux spectra and 100 closure phase spectra. The novel inclusion of closure phases makes interferometric imaging possible for the first time. We reconstructed images in the N -band at ∼10 mas resolution. We fit blackbody functions with dust extinction to several aperture-extracted fluxes from the images to produce a temperature distribution of central dusty structures. Results. We find significant substructure in the circumnuclear dust: central unresolved flux of ∼0.5 Jy, a thin disk 1.9 pc in diameter oriented along ∼45°, and a ∼4 × 1.5 pc polar emission extending orthogonal to the disk. The polar emission exhibits patchiness, which we attribute to clumpy dust. Flux enhancements to the east and west of the disk are seen for the first time. We distinguish the temperature profiles of the disk and of the polar emission: the disk shows a steep temperature gradient indicative of denser material; the polar profile is flatter, indicating clumpiness and/or lower dust density. The unresolved flux is fitted with a high temperature, ∼370 K. The polar dust remains warm (∼200 K) out to 1.5 pc from the disk. We attribute approximately 60% of the 12 μm flux to the polar dust, 10% to the disk, and 6% is unresolved; the remaining flux was resolved out. The recovered morphology and temperature distribution resembles modeling of accretion disks with radiation-driven winds at large scales, but we placed new constraints on the subparsec dust. Conclusions. The spatially resolved subparsec features imaged here place new constraints on the physical modeling of circumnuclear dust in active galaxies; we show strong evidence that the polar emission consists of dust clumps or filaments. The dynamics of the structures and their role in the Unified Model remain to be explored." @default.
• W4229458093 created "2022-05-11" @default.
• W4229458093 creator A5013657336 @default.
• W4229458093 creator A5039987184 @default.
• W4229458093 creator A5058317182 @default.
• W4229458093 creator A5066136302 @default.
• W4229458093 creator A5073039871 @default.
• W4229458093 creator A5081001890 @default.
• W4229458093 date "2022-07-01" @default.
• W4229458093 modified "2023-10-17" @default.
• W4229458093 title "The dusty heart of Circinus" @default.
• W4229458093 cites W1674039102 @default.
• W4229458093 cites W1807603650 @default.
• W4229458093 cites W1851094235 @default.
• W4229458093 cites W1964567165 @default.
• W4229458093 cites W1965372241 @default.
• W4229458093 cites W1966997351 @default.
• W4229458093 cites W1979115990 @default.
• W4229458093 cites W1984347506 @default.
• W4229458093 cites W1995047722 @default.
• W4229458093 cites W1997106536 @default.
• W4229458093 cites W1997163748 @default.
• W4229458093 cites W2001545787 @default.
• W4229458093 cites W2014181843 @default.
• W4229458093 cites W2014927110 @default.
• W4229458093 cites W2020422822 @default.
• W4229458093 cites W2029422149 @default.
• W4229458093 cites W2029547539 @default.
• W4229458093 cites W2031211037 @default.
• W4229458093 cites W2040410904 @default.
• W4229458093 cites W2042427766 @default.
• W4229458093 cites W2068330657 @default.
• W4229458093 cites W2070028823 @default.
• W4229458093 cites W2073215802 @default.
• W4229458093 cites W2074528146 @default.
• W4229458093 cites W2075665712 @default.
• W4229458093 cites W2082732658 @default.
• W4229458093 cites W2084925217 @default.
• W4229458093 cites W2085638528 @default.
• W4229458093 cites W2092750450 @default.
• W4229458093 cites W2121569158 @default.
• W4229458093 cites W2124219338 @default.
• W4229458093 cites W2128441099 @default.
• W4229458093 cites W2136319118 @default.
• W4229458093 cites W2136749628 @default.
• W4229458093 cites W2153714254 @default.
• W4229458093 cites W2153931839 @default.
• W4229458093 cites W2159478752 @default.
• W4229458093 cites W2178566002 @default.
• W4229458093 cites W2285880218 @default.
• W4229458093 cites W2300097710 @default.
• W4229458093 cites W2753726429 @default.
• W4229458093 cites W2805664086 @default.
• W4229458093 cites W2910468075 @default.
• W4229458093 cites W2979075583 @default.
• W4229458093 cites W2990599075 @default.
• W4229458093 cites W3098843158 @default.
• W4229458093 cites W3098884474 @default.
• W4229458093 cites W3099047290 @default.
• W4229458093 cites W3099047972 @default.
• W4229458093 cites W3099432868 @default.
• W4229458093 cites W3099574437 @default.
• W4229458093 cites W3099723478 @default.
• W4229458093 cites W3099880957 @default.
• W4229458093 cites W3100337347 @default.
• W4229458093 cites W3100583928 @default.
• W4229458093 cites W3102014803 @default.
• W4229458093 cites W3102050445 @default.
• W4229458093 cites W3102782160 @default.
• W4229458093 cites W3102993162 @default.
• W4229458093 cites W3105249828 @default.
• W4229458093 cites W3105933299 @default.
• W4229458093 cites W3106010517 @default.
• W4229458093 cites W3106180996 @default.
• W4229458093 cites W3144114485 @default.
• W4229458093 cites W3165255937 @default.
• W4229458093 cites W3215418546 @default.
• W4229458093 cites W4213289678 @default.
• W4229458093 cites W4220754216 @default.
• W4229458093 cites W4292691071 @default.
• W4229458093 cites W4295695032 @default.
• W4229458093 doi "https://doi.org/10.1051/0004-6361/202243271" @default.
• W4229458093 hasPublicationYear "2022" @default.
• W4229458093 type Work @default.
• W4229458093 citedByCount "15" @default.
• W4229458093 countsByYear W42294580932022 @default.
• W4229458093 countsByYear W42294580932023 @default.
• W4229458093 crossrefType "journal-article" @default.
• W4229458093 hasAuthorship W4229458093A5013657336 @default.
• W4229458093 hasAuthorship W4229458093A5039987184 @default.
• W4229458093 hasAuthorship W4229458093A5058317182 @default.
• W4229458093 hasAuthorship W4229458093A5066136302 @default.
• W4229458093 hasAuthorship W4229458093A5073039871 @default.
• W4229458093 hasAuthorship W4229458093A5081001890 @default.
• W4229458093 hasBestOaLocation W42294580931 @default.
• W4229458093 hasConcept C101991246 @default.
• W4229458093 hasConcept C120665830 @default.
• W4229458093 hasConcept C121332964 @default.

• next