Matches in SemOpenAlex for { <https://semopenalex.org/work/W2089363921> ?p ?o ?g. }
- W2089363921 endingPage "304" @default.
- W2089363921 startingPage "293" @default.
- W2089363921 abstract "We have developed a model for the dust and gas envelope of the C star IRC+10 216. Spherical symmetry is assumed, and the model consistently solves the full radiative transfer problem for the rotationally excited far-infrared and submillimetre wavelength CO lines and for the dust continuum. New observations of the CO J=9-8 and 12-11 lines, made with the Kuiper Airborne Observatory, are presented. The model accounts for the first 32 rotational states in the lowest two vibrational levels of CO, and is shown to yield satisfactory fits to both line profiles and spatial maps of the CO J=1-0, 2-1, 3-2, 4-3, 6-5, 7-6, 9-8 and 12-11 lines. The dust model yields a good fit to the spectral energy distribution from the near-IR to millimetre wavelengths, assuming a distance to the star of 170 pc. From the CO model we are able to confirm previous findings that the gas in the outer envelope is heated by the photoelectric effect, and we also find that the mass-loss rate must be of order 5 × 10−5 M⊙ yr-1, with a gas-to-dust ratio of approximately 220, in order to fit all the CO observations and the spectral energy distribution simultaneously, and to predict accurately the observed wind terminal velocity via radiative acceleration of the dust grains which are momentum-coupled to the gas. The gas temperature distribution is found to be lower than predicted by a simple three-level molecule approach which has been found to work for the envelopes of O-rich asymptotic giant branch stars, but is in good agreement with some previously published models for this source. In contrast with some previously published models, we find no evidence for a recent change in mass-loss rate." @default.
- W2089363921 created "2016-06-24" @default.
- W2089363921 creator A5020806182 @default.
- W2089363921 creator A5031755057 @default.
- W2089363921 creator A5041623688 @default.
- W2089363921 creator A5061757830 @default.
- W2089363921 creator A5064417365 @default.
- W2089363921 creator A5064747549 @default.
- W2089363921 date "1999-01-11" @default.
- W2089363921 modified "2023-09-23" @default.
- W2089363921 title "Modelling the dust and gas outflows from IRC+10 216 - I. Ground-based and airborne observations" @default.
- W2089363921 cites W120039825 @default.
- W2089363921 cites W1965372241 @default.
- W2089363921 cites W1966821842 @default.
- W2089363921 cites W1967580440 @default.
- W2089363921 cites W1968761599 @default.
- W2089363921 cites W1972657956 @default.
- W2089363921 cites W1973548628 @default.
- W2089363921 cites W1979371508 @default.
- W2089363921 cites W1981664135 @default.
- W2089363921 cites W1982577870 @default.
- W2089363921 cites W1992222572 @default.
- W2089363921 cites W1994978805 @default.
- W2089363921 cites W2003880437 @default.
- W2089363921 cites W2017695500 @default.
- W2089363921 cites W2018645664 @default.
- W2089363921 cites W2018794246 @default.
- W2089363921 cites W2021451018 @default.
- W2089363921 cites W2027041709 @default.
- W2089363921 cites W2029360642 @default.
- W2089363921 cites W2035914643 @default.
- W2089363921 cites W2038965803 @default.
- W2089363921 cites W2039691572 @default.
- W2089363921 cites W2040104295 @default.
- W2089363921 cites W2041032175 @default.
- W2089363921 cites W2043041025 @default.
- W2089363921 cites W2045201301 @default.
- W2089363921 cites W2073602162 @default.
- W2089363921 cites W2075811630 @default.
- W2089363921 cites W2076846794 @default.
- W2089363921 cites W2078001023 @default.
- W2089363921 cites W2080748776 @default.
- W2089363921 cites W2080906346 @default.
- W2089363921 cites W2081502289 @default.
- W2089363921 cites W2085358319 @default.
- W2089363921 cites W2085380851 @default.
- W2089363921 cites W2087895572 @default.
- W2089363921 cites W2128549304 @default.
- W2089363921 cites W2135818277 @default.
- W2089363921 cites W2164503997 @default.
- W2089363921 cites W2985293071 @default.
- W2089363921 cites W3100741447 @default.
- W2089363921 cites W3182995877 @default.
- W2089363921 doi "https://doi.org/10.1046/j.1365-8711.1999.02113.x" @default.
- W2089363921 hasPublicationYear "1999" @default.
- W2089363921 type Work @default.
- W2089363921 sameAs 2089363921 @default.
- W2089363921 citedByCount "35" @default.
- W2089363921 countsByYear W20893639212012 @default.
- W2089363921 countsByYear W20893639212013 @default.
- W2089363921 countsByYear W20893639212017 @default.
- W2089363921 countsByYear W20893639212018 @default.
- W2089363921 countsByYear W20893639212019 @default.
- W2089363921 crossrefType "journal-article" @default.
- W2089363921 hasAuthorship W2089363921A5020806182 @default.
- W2089363921 hasAuthorship W2089363921A5031755057 @default.
- W2089363921 hasAuthorship W2089363921A5041623688 @default.
- W2089363921 hasAuthorship W2089363921A5061757830 @default.
- W2089363921 hasAuthorship W2089363921A5064417365 @default.
- W2089363921 hasAuthorship W2089363921A5064747549 @default.
- W2089363921 hasBestOaLocation W20893639211 @default.
- W2089363921 hasConcept C120665830 @default.
- W2089363921 hasConcept C121332964 @default.
- W2089363921 hasConcept C1276947 @default.
- W2089363921 hasConcept C158355884 @default.
- W2089363921 hasConcept C181500209 @default.
- W2089363921 hasConcept C184779094 @default.
- W2089363921 hasConcept C199390426 @default.
- W2089363921 hasConcept C44870925 @default.
- W2089363921 hasConcept C4839761 @default.
- W2089363921 hasConcept C50425793 @default.
- W2089363921 hasConcept C6260449 @default.
- W2089363921 hasConcept C74902906 @default.
- W2089363921 hasConceptScore W2089363921C120665830 @default.
- W2089363921 hasConceptScore W2089363921C121332964 @default.
- W2089363921 hasConceptScore W2089363921C1276947 @default.
- W2089363921 hasConceptScore W2089363921C158355884 @default.
- W2089363921 hasConceptScore W2089363921C181500209 @default.
- W2089363921 hasConceptScore W2089363921C184779094 @default.
- W2089363921 hasConceptScore W2089363921C199390426 @default.
- W2089363921 hasConceptScore W2089363921C44870925 @default.
- W2089363921 hasConceptScore W2089363921C4839761 @default.
- W2089363921 hasConceptScore W2089363921C50425793 @default.
- W2089363921 hasConceptScore W2089363921C6260449 @default.
- W2089363921 hasConceptScore W2089363921C74902906 @default.
- W2089363921 hasIssue "2" @default.
- W2089363921 hasLocation W20893639211 @default.
- W2089363921 hasOpenAccess W2089363921 @default.