Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000591667> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W2000591667 endingPage "1181" @default.
- W2000591667 startingPage "1173" @default.
- W2000591667 abstract "We have added data for 16 distant Cepheids observed with the echelle spectrograph of the Apache Point 3.5 m telescope to improve the correlations of abundance parameters with pulsation period and distance from the Galactic center (RG). While we see no important trends with pulsation period, some important ratios are closely related to the evolution of stars through the instability strip. The most interesting is the N/C ratio, which is predicted to be enhanced by a factor of 4 when an evolving supergiant cools to Teff = 4000 K and the outer convection zone reaches the depth at which CN processing has converted C to N. We find a Gaussian distribution around a value of [N/C] = 0.6, just as predicted. The ratio of about 30:1 mixed to unmixed stars can be taken as the ratio of evolutionary time spent on the blue loop to the time spent on the first crossing through the instability strip. According to stellar models, the main mixing event takes place when Teff drops below 4000 K, which is outside the red edge of the instability strip; i.e., after stars have crossed the instability strip for the first time. We have confirmed previously known correlations of [Fe/H] with RG. We find that [Fe/H] shows a gradient of −0.06 Kpc−1. The only other significant gradient is that of [Eu/Fe], which increases with RG, thereby showing an increasing ratio of SN II/SN Ia in the outer Galaxy." @default.
- W2000591667 created "2016-06-24" @default.
- W2000591667 creator A5012575074 @default.
- W2000591667 creator A5033041223 @default.
- W2000591667 creator A5046906248 @default.
- W2000591667 date "2005-11-01" @default.
- W2000591667 modified "2023-10-03" @default.
- W2000591667 title "Galactic Cepheids. I. Elemental Abundances and Their Implementation for Stellar and Galactic Evolution" @default.
- W2000591667 cites W1963637146 @default.
- W2000591667 cites W1967375550 @default.
- W2000591667 cites W1969587049 @default.
- W2000591667 cites W1995204717 @default.
- W2000591667 cites W2009391876 @default.
- W2000591667 cites W2018868501 @default.
- W2000591667 cites W2023393381 @default.
- W2000591667 cites W2023589486 @default.
- W2000591667 cites W2026722076 @default.
- W2000591667 cites W2036440453 @default.
- W2000591667 cites W2039806352 @default.
- W2000591667 cites W2050176398 @default.
- W2000591667 cites W2052178936 @default.
- W2000591667 cites W2054133260 @default.
- W2000591667 cites W2058639053 @default.
- W2000591667 cites W2073168978 @default.
- W2000591667 cites W2073764874 @default.
- W2000591667 cites W2089310787 @default.
- W2000591667 cites W2094499466 @default.
- W2000591667 cites W2095471616 @default.
- W2000591667 cites W2143307438 @default.
- W2000591667 cites W2159427092 @default.
- W2000591667 cites W2169252773 @default.
- W2000591667 cites W2177376908 @default.
- W2000591667 cites W3106205737 @default.
- W2000591667 cites W4296577380 @default.
- W2000591667 doi "https://doi.org/10.1086/491591" @default.
- W2000591667 hasPublicationYear "2005" @default.
- W2000591667 type Work @default.
- W2000591667 sameAs 2000591667 @default.
- W2000591667 citedByCount "59" @default.
- W2000591667 countsByYear W20005916672012 @default.
- W2000591667 countsByYear W20005916672013 @default.
- W2000591667 countsByYear W20005916672014 @default.
- W2000591667 countsByYear W20005916672015 @default.
- W2000591667 countsByYear W20005916672016 @default.
- W2000591667 countsByYear W20005916672017 @default.
- W2000591667 countsByYear W20005916672018 @default.
- W2000591667 countsByYear W20005916672020 @default.
- W2000591667 countsByYear W20005916672021 @default.
- W2000591667 countsByYear W20005916672022 @default.
- W2000591667 countsByYear W20005916672023 @default.
- W2000591667 crossrefType "journal-article" @default.
- W2000591667 hasAuthorship W2000591667A5012575074 @default.
- W2000591667 hasAuthorship W2000591667A5033041223 @default.
- W2000591667 hasAuthorship W2000591667A5046906248 @default.
- W2000591667 hasBestOaLocation W20005916671 @default.
- W2000591667 hasConcept C121332964 @default.
- W2000591667 hasConcept C1276947 @default.
- W2000591667 hasConcept C132552067 @default.
- W2000591667 hasConcept C150739758 @default.
- W2000591667 hasConcept C150846664 @default.
- W2000591667 hasConcept C179801107 @default.
- W2000591667 hasConcept C198785896 @default.
- W2000591667 hasConcept C204843146 @default.
- W2000591667 hasConcept C207821765 @default.
- W2000591667 hasConcept C44870925 @default.
- W2000591667 hasConcept C57879066 @default.
- W2000591667 hasConcept C98444146 @default.
- W2000591667 hasConceptScore W2000591667C121332964 @default.
- W2000591667 hasConceptScore W2000591667C1276947 @default.
- W2000591667 hasConceptScore W2000591667C132552067 @default.
- W2000591667 hasConceptScore W2000591667C150739758 @default.
- W2000591667 hasConceptScore W2000591667C150846664 @default.
- W2000591667 hasConceptScore W2000591667C179801107 @default.
- W2000591667 hasConceptScore W2000591667C198785896 @default.
- W2000591667 hasConceptScore W2000591667C204843146 @default.
- W2000591667 hasConceptScore W2000591667C207821765 @default.
- W2000591667 hasConceptScore W2000591667C44870925 @default.
- W2000591667 hasConceptScore W2000591667C57879066 @default.
- W2000591667 hasConceptScore W2000591667C98444146 @default.
- W2000591667 hasIssue "837" @default.
- W2000591667 hasLocation W20005916671 @default.
- W2000591667 hasOpenAccess W2000591667 @default.
- W2000591667 hasPrimaryLocation W20005916671 @default.
- W2000591667 hasRelatedWork W1516145803 @default.
- W2000591667 hasRelatedWork W1977496776 @default.
- W2000591667 hasRelatedWork W2101675367 @default.
- W2000591667 hasRelatedWork W2137929083 @default.
- W2000591667 hasRelatedWork W2989945923 @default.
- W2000591667 hasRelatedWork W2990115058 @default.
- W2000591667 hasRelatedWork W3081046567 @default.
- W2000591667 hasRelatedWork W3103461279 @default.
- W2000591667 hasRelatedWork W3171542370 @default.
- W2000591667 hasRelatedWork W4255416922 @default.
- W2000591667 hasVolume "117" @default.
- W2000591667 isParatext "false" @default.
- W2000591667 isRetracted "false" @default.
- W2000591667 magId "2000591667" @default.
- W2000591667 workType "article" @default.