Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100207368> ?p ?o ?g. }
- W3100207368 endingPage "L34" @default.
- W3100207368 startingPage "L34" @default.
- W3100207368 abstract "Only a handful of stars have been identified with an iron abundance [Fe/H]<-5, and only one at [Fe/H]<-7. These stars have very large carbon-to-iron ratios, with A(C)~7.0, most likely due to fallback in core-collapse supernovae, which makes their total metallicity Z much higher than their iron abundances. The failure to find population III stars, those with no metals, has been interpreted, with support from theoretical modeling, as the result of a top-heavy initial mass function. With zero or very low metal abundance limiting radiative cooling, the formation of low-mass stars could be inhibited. Currently, the star SDSS J1029+1729 sets the potential metallicity threshold for the formation of low-mass stars at log Z/Z_0~-5. We have identified SDSS J0023+0307, a primitive star with T_eff =6188+-84 K, and log g=4.9+-0.5, an upper limit [Fe/H]< -6.6, and a carbon abundance A(C)< 6.3. In our quest to push down the metallicity threshold we find J0023+0307 to be one of the two most iron-poor stars known, and it exhibits less carbon that most of stars at [Fe/H]< -5." @default.
- W3100207368 created "2020-11-23" @default.
- W3100207368 creator A5029732789 @default.
- W3100207368 creator A5045815666 @default.
- W3100207368 creator A5052512098 @default.
- W3100207368 creator A5082101542 @default.
- W3100207368 date "2018-02-23" @default.
- W3100207368 modified "2023-09-30" @default.
- W3100207368 title "J0023+0307: A Mega Metal-poor Dwarf Star from SDSS/BOSS" @default.
- W3100207368 cites W1976106338 @default.
- W3100207368 cites W2004962809 @default.
- W3100207368 cites W2018133573 @default.
- W3100207368 cites W2020993655 @default.
- W3100207368 cites W2022607292 @default.
- W3100207368 cites W2044643318 @default.
- W3100207368 cites W2060471386 @default.
- W3100207368 cites W2068531270 @default.
- W3100207368 cites W2071667761 @default.
- W3100207368 cites W2098623259 @default.
- W3100207368 cites W2102600871 @default.
- W3100207368 cites W2126597027 @default.
- W3100207368 cites W2153220281 @default.
- W3100207368 cites W2168955357 @default.
- W3100207368 cites W2415853256 @default.
- W3100207368 cites W2486619033 @default.
- W3100207368 cites W2762757028 @default.
- W3100207368 cites W2950774907 @default.
- W3100207368 cites W3098705773 @default.
- W3100207368 cites W3100157999 @default.
- W3100207368 cites W3100827782 @default.
- W3100207368 cites W3100880211 @default.
- W3100207368 cites W3103241877 @default.
- W3100207368 cites W3104405538 @default.
- W3100207368 cites W3106008382 @default.
- W3100207368 cites W3106048937 @default.
- W3100207368 cites W3123810912 @default.
- W3100207368 cites W3125978220 @default.
- W3100207368 doi "https://doi.org/10.3847/2041-8213/aaadb8" @default.
- W3100207368 hasPublicationYear "2018" @default.
- W3100207368 type Work @default.
- W3100207368 sameAs 3100207368 @default.
- W3100207368 citedByCount "41" @default.
- W3100207368 countsByYear W31002073682018 @default.
- W3100207368 countsByYear W31002073682019 @default.
- W3100207368 countsByYear W31002073682020 @default.
- W3100207368 countsByYear W31002073682021 @default.
- W3100207368 countsByYear W31002073682022 @default.
- W3100207368 countsByYear W31002073682023 @default.
- W3100207368 crossrefType "journal-article" @default.
- W3100207368 hasAuthorship W3100207368A5029732789 @default.
- W3100207368 hasAuthorship W3100207368A5045815666 @default.
- W3100207368 hasAuthorship W3100207368A5052512098 @default.
- W3100207368 hasAuthorship W3100207368A5082101542 @default.
- W3100207368 hasBestOaLocation W31002073681 @default.
- W3100207368 hasConcept C121332964 @default.
- W3100207368 hasConcept C125857072 @default.
- W3100207368 hasConcept C127592171 @default.
- W3100207368 hasConcept C1276947 @default.
- W3100207368 hasConcept C144024400 @default.
- W3100207368 hasConcept C149923435 @default.
- W3100207368 hasConcept C150846664 @default.
- W3100207368 hasConcept C178075534 @default.
- W3100207368 hasConcept C189159749 @default.
- W3100207368 hasConcept C2908647359 @default.
- W3100207368 hasConcept C44870925 @default.
- W3100207368 hasConcept C47371412 @default.
- W3100207368 hasConcept C80518518 @default.
- W3100207368 hasConcept C99465377 @default.
- W3100207368 hasConceptScore W3100207368C121332964 @default.
- W3100207368 hasConceptScore W3100207368C125857072 @default.
- W3100207368 hasConceptScore W3100207368C127592171 @default.
- W3100207368 hasConceptScore W3100207368C1276947 @default.
- W3100207368 hasConceptScore W3100207368C144024400 @default.
- W3100207368 hasConceptScore W3100207368C149923435 @default.
- W3100207368 hasConceptScore W3100207368C150846664 @default.
- W3100207368 hasConceptScore W3100207368C178075534 @default.
- W3100207368 hasConceptScore W3100207368C189159749 @default.
- W3100207368 hasConceptScore W3100207368C2908647359 @default.
- W3100207368 hasConceptScore W3100207368C44870925 @default.
- W3100207368 hasConceptScore W3100207368C47371412 @default.
- W3100207368 hasConceptScore W3100207368C80518518 @default.
- W3100207368 hasConceptScore W3100207368C99465377 @default.
- W3100207368 hasIssue "2" @default.
- W3100207368 hasLocation W31002073681 @default.
- W3100207368 hasLocation W31002073682 @default.
- W3100207368 hasOpenAccess W3100207368 @default.
- W3100207368 hasPrimaryLocation W31002073681 @default.
- W3100207368 hasRelatedWork W2098299526 @default.
- W3100207368 hasRelatedWork W2130896480 @default.
- W3100207368 hasRelatedWork W2738286666 @default.
- W3100207368 hasRelatedWork W2951352551 @default.
- W3100207368 hasRelatedWork W3099746440 @default.
- W3100207368 hasRelatedWork W3123020773 @default.
- W3100207368 hasRelatedWork W3133774596 @default.
- W3100207368 hasRelatedWork W3188333101 @default.
- W3100207368 hasRelatedWork W3196973422 @default.
- W3100207368 hasRelatedWork W4253218794 @default.
- W3100207368 hasVolume "854" @default.