FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2074102904> ?p ?o ?g. }

• W2074102904 endingPage "183" @default.
• W2074102904 startingPage "183" @default.
• W2074102904 abstract "view Abstract Citations (13) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radiative Opacity in Stellar Atmospheres. III. Effect of the Hydrogen-To Ratio on the Atmospheric Structure Matsushima, Satoshi ; Terashita, Yoichi Abstract A grid of line-blanketed model atmospheres with different hydrogen-to-helium ratios is constructed for wide ranges of Teff and log g in order to investigate the effect of differing hydrogen content on the structure of stellar atmospheres. The changes in the emergent flux distribution with wavelength, UBV color indices, and the fly and Ho profiles are also considered. It is found that a small reduction in the H-to-He ratio produces a large increase in the electron pressure as well as in the gas pressure, and that the change in Pe produces considerable effects on the observable features. On the other hand, the effect of hydrogen content on the temperature stratification is small until the H-to-He ratio is reduced to about 0.1. Theoretical interpretations are presented to account for the variations in T, Pe, and P with varying hydrogen content in terms of differential variations in the relative importance of H, H, and He as sources of atmospheric opacity coupled with Lyman- and Balmer-line blanketing. Since an increase in Fe also results from an increased surface gravity, the variations of the observable quantities with hydrogen content or with surface gravity are generally indistinguishable. A general for- mula is derived to relate the errors due to uncertainties in log g and those in hydrogen content. In a hydrogen-rich atmosphere, the accuracies in the determinations of the surface gravity and hydrogen content from the color indices are estimated to be `-~.-`O 1 in log g and about 15 per cent in the hydrogen content for a model with Teff 150000 K and logg 7. Since a small change in hydrogen content has lit- tle effect on Teff, the determination of Teff from observed color indices appears to be a promising method for white dwarfs. For stars with lower g, however, the use of hydrogen line profiles may be superior to the use of color indices in determining the atmospheric parameters, although in this case it is not possible to determine Teff independently from g and the H-to-He ratio Publication: The Astrophysical Journal Pub Date: April 1969 DOI: 10.1086/149957 Bibcode: 1969ApJ...156..183M full text sources ADS | Related Materials (2) Part 1: 1968ApJ...154..689T Part 2: 1968ApJ...154..715M" @default.
• W2074102904 created "2016-06-24" @default.
• W2074102904 creator A5074186985 @default.
• W2074102904 creator A5074677120 @default.
• W2074102904 date "1969-04-01" @default.
• W2074102904 modified "2023-10-04" @default.
• W2074102904 title "Radiative Opacity in Stellar Atmospheres. III. Effect of the Hydrogen-To Ratio on the Atmospheric Structure" @default.
• W2074102904 doi "https://doi.org/10.1086/149957" @default.
• W2074102904 hasPublicationYear "1969" @default.
• W2074102904 type Work @default.
• W2074102904 sameAs 2074102904 @default.
• W2074102904 citedByCount "2" @default.
• W2074102904 crossrefType "journal-article" @default.
• W2074102904 hasAuthorship W2074102904A5074186985 @default.
• W2074102904 hasAuthorship W2074102904A5074677120 @default.
• W2074102904 hasBestOaLocation W20741029041 @default.
• W2074102904 hasConcept C101638190 @default.
• W2074102904 hasConcept C120665830 @default.
• W2074102904 hasConcept C121332964 @default.
• W2074102904 hasConcept C1276947 @default.
• W2074102904 hasConcept C150846664 @default.
• W2074102904 hasConcept C173220165 @default.
• W2074102904 hasConcept C32848918 @default.
• W2074102904 hasConcept C44870925 @default.
• W2074102904 hasConcept C4839761 @default.
• W2074102904 hasConcept C512968161 @default.
• W2074102904 hasConcept C60056205 @default.
• W2074102904 hasConcept C62520636 @default.
• W2074102904 hasConcept C65440619 @default.
• W2074102904 hasConcept C74902906 @default.
• W2074102904 hasConcept C96141758 @default.
• W2074102904 hasConcept C97355855 @default.
• W2074102904 hasConceptScore W2074102904C101638190 @default.
• W2074102904 hasConceptScore W2074102904C120665830 @default.
• W2074102904 hasConceptScore W2074102904C121332964 @default.
• W2074102904 hasConceptScore W2074102904C1276947 @default.
• W2074102904 hasConceptScore W2074102904C150846664 @default.
• W2074102904 hasConceptScore W2074102904C173220165 @default.
• W2074102904 hasConceptScore W2074102904C32848918 @default.
• W2074102904 hasConceptScore W2074102904C44870925 @default.
• W2074102904 hasConceptScore W2074102904C4839761 @default.
• W2074102904 hasConceptScore W2074102904C512968161 @default.
• W2074102904 hasConceptScore W2074102904C60056205 @default.
• W2074102904 hasConceptScore W2074102904C62520636 @default.
• W2074102904 hasConceptScore W2074102904C65440619 @default.
• W2074102904 hasConceptScore W2074102904C74902906 @default.
• W2074102904 hasConceptScore W2074102904C96141758 @default.
• W2074102904 hasConceptScore W2074102904C97355855 @default.
• W2074102904 hasLocation W20741029041 @default.
• W2074102904 hasOpenAccess W2074102904 @default.
• W2074102904 hasPrimaryLocation W20741029041 @default.
• W2074102904 hasRelatedWork W1499532439 @default.
• W2074102904 hasRelatedWork W1565691162 @default.
• W2074102904 hasRelatedWork W1971210827 @default.
• W2074102904 hasRelatedWork W1993159000 @default.
• W2074102904 hasRelatedWork W2011182765 @default.
• W2074102904 hasRelatedWork W2035672370 @default.
• W2074102904 hasRelatedWork W2073912992 @default.
• W2074102904 hasRelatedWork W2126151768 @default.
• W2074102904 hasRelatedWork W2930989596 @default.
• W2074102904 hasRelatedWork W3100988172 @default.
• W2074102904 hasVolume "156" @default.
• W2074102904 isParatext "false" @default.
• W2074102904 isRetracted "false" @default.
• W2074102904 magId "2074102904" @default.
• W2074102904 workType "article" @default.