Matches in SemOpenAlex for { <https://semopenalex.org/work/W1950528312> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W1950528312 endingPage "204" @default.
- W1950528312 startingPage "195" @default.
- W1950528312 abstract "It has become clear in recent years that widespread and complex abundance variations exist among the stars of several globular clusters. ω Cen is the prime example, containing CH stars, weak-G-band stars, CN strong stars, TiO stars, and (not least) RR Lyrae stars possessing an anomalous range in calcium line strengths. (Harding 1962; Freeman and Rodgers 1975; Norris and Bessell 1975, 1977; Dickens and Bell 1976; Bessell and Norris 1976; Lloyd Evans 1977) The extent to which these phenomena result from primordial abundance variations or from the mixing to the surface of material processed by nuclear reactions is currently the subject of some debate. The present paper presents a short account of investigations of the giant and horizontal branches of 47 Tuc and of several giants in ω Cen. The results were obtained in collaboration with M. S. Bessell and K. C. Freeman, and will be fully reported in papers being prepared for submission to Astrophysical Journal . Most emphasis will be placed on 47 Tuc, where we have sought to address four problems. (i) How widespread are the CN anomalies reported by McClure and Osborn (1974), Bell, Dickens, and Gustafsson (1975), and Hesser, Hartwick, and McClure (19 77) - both throughout the HR diagram and in relative frequency? (ii) Is there any correlation between the relative frequency of the CN anomaly with radial position in the cluster, which might correlate with the color gradients observed by Gascoigne and Burr (1956) and Chun (1976)? (iii) Is there any evidence for G-band variations similar to those found generally in the metal poor ([Fe/H]< −1) globular clusters? (cf. Zinn 1973, 1977; Mallia 1975; Norris and Zinn 1977) (iv) Are the CN variations accompanied by variations in the abundance of the heavy elements?" @default.
- W1950528312 created "2016-06-24" @default.
- W1950528312 creator A5070976583 @default.
- W1950528312 date "1978-01-01" @default.
- W1950528312 modified "2023-10-16" @default.
- W1950528312 title "The Role of Mixing and Primordial Abundance Variations in 47 Tucanae and ω Centauri" @default.
- W1950528312 cites W1964738019 @default.
- W1950528312 cites W1985721589 @default.
- W1950528312 cites W1993732247 @default.
- W1950528312 cites W1998893581 @default.
- W1950528312 cites W2009446256 @default.
- W1950528312 cites W2035503360 @default.
- W1950528312 cites W2038484337 @default.
- W1950528312 cites W2045416971 @default.
- W1950528312 cites W2047329712 @default.
- W1950528312 cites W2047939090 @default.
- W1950528312 cites W2050854099 @default.
- W1950528312 cites W2052651816 @default.
- W1950528312 cites W2053108253 @default.
- W1950528312 cites W2071427973 @default.
- W1950528312 cites W2073213911 @default.
- W1950528312 cites W2074284262 @default.
- W1950528312 cites W2313757656 @default.
- W1950528312 doi "https://doi.org/10.1017/s0074180900145528" @default.
- W1950528312 hasPublicationYear "1978" @default.
- W1950528312 type Work @default.
- W1950528312 sameAs 1950528312 @default.
- W1950528312 citedByCount "0" @default.
- W1950528312 crossrefType "journal-article" @default.
- W1950528312 hasAuthorship W1950528312A5070976583 @default.
- W1950528312 hasBestOaLocation W19505283121 @default.
- W1950528312 hasConcept C113461152 @default.
- W1950528312 hasConcept C121332964 @default.
- W1950528312 hasConcept C1276947 @default.
- W1950528312 hasConcept C150846664 @default.
- W1950528312 hasConcept C172338258 @default.
- W1950528312 hasConcept C44870925 @default.
- W1950528312 hasConcept C67258758 @default.
- W1950528312 hasConceptScore W1950528312C113461152 @default.
- W1950528312 hasConceptScore W1950528312C121332964 @default.
- W1950528312 hasConceptScore W1950528312C1276947 @default.
- W1950528312 hasConceptScore W1950528312C150846664 @default.
- W1950528312 hasConceptScore W1950528312C172338258 @default.
- W1950528312 hasConceptScore W1950528312C44870925 @default.
- W1950528312 hasConceptScore W1950528312C67258758 @default.
- W1950528312 hasLocation W19505283121 @default.
- W1950528312 hasOpenAccess W1950528312 @default.
- W1950528312 hasPrimaryLocation W19505283121 @default.
- W1950528312 hasRelatedWork W1579198811 @default.
- W1950528312 hasRelatedWork W2006500938 @default.
- W1950528312 hasRelatedWork W2062353776 @default.
- W1950528312 hasRelatedWork W2066807337 @default.
- W1950528312 hasRelatedWork W2088055148 @default.
- W1950528312 hasRelatedWork W2095637234 @default.
- W1950528312 hasRelatedWork W2593612890 @default.
- W1950528312 hasRelatedWork W2976514883 @default.
- W1950528312 hasRelatedWork W3102059507 @default.
- W1950528312 hasRelatedWork W3163083320 @default.
- W1950528312 hasVolume "80" @default.
- W1950528312 isParatext "false" @default.
- W1950528312 isRetracted "false" @default.
- W1950528312 magId "1950528312" @default.
- W1950528312 workType "article" @default.