FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015205819> ?p ?o ?g. }

• W2015205819 endingPage "840" @default.
• W2015205819 startingPage "833" @default.
• W2015205819 abstract "We present a simple analysis of X-ray emission and absorption for hot-star winds, designed to explore the natural scalings of the observed X-ray luminosity with wind and stellar properties. We show that an exospheric approximation, in which all of the emission above the optical depth unity radius escapes the wind, reproduces very well the formal solution for radiation transport through a spherically symmetric wind. Using this approximation we find that the X-ray luminosity LX scales naturally with the wind density parameter /v∞, obtaining LX ~ (/v∞)2 for optically thin winds, and LX ~ (/v∞)1+s for optically thick winds with an X-ray filling factor that varies in radius as f ~ rs. These scalings with wind density contrast with the commonly inferred empirical scalings of X-ray luminosity LX with bolometric luminosity LBol. The empirically derived linear scaling of LX ~ LBol for thick winds can, however, be reproduced through a delicate cancellation of emission and absorption, if one assumes modest radial fall-off in the X-ray filling factor (s ≈ -0.25 or s ≈ -0.4, depending on details of the secondary scaling of wind density with luminosity). We also explore the nature of the X-ray spectral energy distribution in the context of this model and find that the spectrum is divided into a soft, optically thick part and a hard, optically thin part. Finally, we conclude that the energy-dependent emissivity must have a high-energy cutoff, corresponding to the maximum shock energy, in order to reproduce the general trends seen in X-ray spectral energy distributions of hot stars." @default.
• W2015205819 created "2016-06-24" @default.
• W2015205819 creator A5015960187 @default.
• W2015205819 creator A5079855344 @default.
• W2015205819 date "1999-08-01" @default.
• W2015205819 modified "2023-10-16" @default.
• W2015205819 title "A Simple Scaling Analysis of X‐Ray Emission and Absorption in Hot‐Star Winds" @default.
• W2015205819 cites W1589182543 @default.
• W2015205819 cites W1965290708 @default.
• W2015205819 cites W1972287367 @default.
• W2015205819 cites W1972386645 @default.
• W2015205819 cites W1974764678 @default.
• W2015205819 cites W1989199175 @default.
• W2015205819 cites W2007906377 @default.
• W2015205819 cites W2010017676 @default.
• W2015205819 cites W2011078283 @default.
• W2015205819 cites W2016193745 @default.
• W2015205819 cites W2016746689 @default.
• W2015205819 cites W2017842440 @default.
• W2015205819 cites W2020733834 @default.
• W2015205819 cites W2023723091 @default.
• W2015205819 cites W2033380950 @default.
• W2015205819 cites W2038882603 @default.
• W2015205819 cites W2039720425 @default.
• W2015205819 cites W2042674528 @default.
• W2015205819 cites W2046481503 @default.
• W2015205819 cites W2051533088 @default.
• W2015205819 cites W2053318695 @default.
• W2015205819 cites W2055452879 @default.
• W2015205819 cites W2056224398 @default.
• W2015205819 cites W2057551211 @default.
• W2015205819 cites W2064224411 @default.
• W2015205819 cites W2064600440 @default.
• W2015205819 cites W2075801773 @default.
• W2015205819 cites W2081880461 @default.
• W2015205819 cites W2088245527 @default.
• W2015205819 cites W4237786902 @default.
• W2015205819 doi "https://doi.org/10.1086/307500" @default.
• W2015205819 hasPublicationYear "1999" @default.
• W2015205819 type Work @default.
• W2015205819 sameAs 2015205819 @default.
• W2015205819 citedByCount "90" @default.
• W2015205819 countsByYear W20152058192012 @default.
• W2015205819 countsByYear W20152058192013 @default.
• W2015205819 countsByYear W20152058192014 @default.
• W2015205819 countsByYear W20152058192015 @default.
• W2015205819 countsByYear W20152058192016 @default.
• W2015205819 countsByYear W20152058192017 @default.
• W2015205819 countsByYear W20152058192019 @default.
• W2015205819 countsByYear W20152058192020 @default.
• W2015205819 countsByYear W20152058192021 @default.
• W2015205819 countsByYear W20152058192022 @default.
• W2015205819 countsByYear W20152058192023 @default.
• W2015205819 crossrefType "journal-article" @default.
• W2015205819 hasAuthorship W2015205819A5015960187 @default.
• W2015205819 hasAuthorship W2015205819A5079855344 @default.
• W2015205819 hasBestOaLocation W20152058192 @default.
• W2015205819 hasConcept C120665830 @default.
• W2015205819 hasConcept C121332964 @default.
• W2015205819 hasConcept C12287442 @default.
• W2015205819 hasConcept C125287762 @default.
• W2015205819 hasConcept C1276947 @default.
• W2015205819 hasConcept C151730666 @default.
• W2015205819 hasConcept C163651212 @default.
• W2015205819 hasConcept C178635117 @default.
• W2015205819 hasConcept C2524010 @default.
• W2015205819 hasConcept C2779343474 @default.
• W2015205819 hasConcept C33923547 @default.
• W2015205819 hasConcept C38652104 @default.
• W2015205819 hasConcept C41008148 @default.
• W2015205819 hasConcept C44870925 @default.
• W2015205819 hasConcept C4839761 @default.
• W2015205819 hasConcept C86803240 @default.
• W2015205819 hasConcept C98444146 @default.
• W2015205819 hasConcept C99844830 @default.
• W2015205819 hasConceptScore W2015205819C120665830 @default.
• W2015205819 hasConceptScore W2015205819C121332964 @default.
• W2015205819 hasConceptScore W2015205819C12287442 @default.
• W2015205819 hasConceptScore W2015205819C125287762 @default.
• W2015205819 hasConceptScore W2015205819C1276947 @default.
• W2015205819 hasConceptScore W2015205819C151730666 @default.
• W2015205819 hasConceptScore W2015205819C163651212 @default.
• W2015205819 hasConceptScore W2015205819C178635117 @default.
• W2015205819 hasConceptScore W2015205819C2524010 @default.
• W2015205819 hasConceptScore W2015205819C2779343474 @default.
• W2015205819 hasConceptScore W2015205819C33923547 @default.
• W2015205819 hasConceptScore W2015205819C38652104 @default.
• W2015205819 hasConceptScore W2015205819C41008148 @default.
• W2015205819 hasConceptScore W2015205819C44870925 @default.
• W2015205819 hasConceptScore W2015205819C4839761 @default.
• W2015205819 hasConceptScore W2015205819C86803240 @default.
• W2015205819 hasConceptScore W2015205819C98444146 @default.
• W2015205819 hasConceptScore W2015205819C99844830 @default.
• W2015205819 hasIssue "2" @default.
• W2015205819 hasLocation W20152058191 @default.
• W2015205819 hasLocation W20152058192 @default.
• W2015205819 hasOpenAccess W2015205819 @default.
• W2015205819 hasPrimaryLocation W20152058191 @default.

• next