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The new record holder for the most iron-poor star: HE 1327−2326, a dwarf or subgiant with [Fe/H] = −5.4

dc.contributor.authorFrebel, A.
dc.contributor.authorAoki, W.
dc.contributor.authorChristlieb, N.
dc.contributor.authorAndo, H.
dc.contributor.authorAsplund, M.
dc.contributor.authorBarklem, P.S.
dc.contributor.authorBeers, T.C.
dc.contributor.authorEriksson, K.
dc.contributor.authorFechner, C.
dc.contributor.authorFujimoto, M.Y.
dc.contributor.authorHonda, S.
dc.contributor.authorKajino, T.
dc.contributor.authorMinezaki, T.
dc.contributor.authorNomoto, K.
dc.contributor.authorNorris, J.E.
dc.contributor.authorRyan, Sean G.
dc.contributor.authorTakada-Hidai, M.
dc.contributor.authorTsangarides, S.
dc.contributor.authorYoshii, Y.
dc.date.accessioned2008-03-06T17:21:53Z
dc.date.available2008-03-06T17:21:53Z
dc.date.issued2005
dc.identifier.citationFrebel , A , Aoki , W , Christlieb , N , Ando , H , Asplund , M , Barklem , P S , Beers , T C , Eriksson , K , Fechner , C , Fujimoto , M Y , Honda , S , Kajino , T , Minezaki , T , Nomoto , K , Norris , J E , Ryan , S G , Takada-Hidai , M , Tsangarides , S & Yoshii , Y 2005 , ' The new record holder for the most iron-poor star: HE 1327−2326, a dwarf or subgiant with [Fe/H] = −5.4 ' , Proceedings of the International Astronomical Union , vol. 228 , pp. 207-212 .
dc.identifier.issn1743-9213
dc.identifier.otherdspace: 2299/1765
dc.identifier.otherORCID: /0000-0001-9069-5122/work/30501343
dc.identifier.urihttp://hdl.handle.net/2299/1765
dc.description.abstractWe describe the discovery of HE 1327−2326, a dwarf or subgiant with [Fe/H] = −5.4. The star was found in a sample of bright metal-poor stars selected from the Hamburg/ESO survey. Its abundance pattern is characterized by very high C and N abundances. The detection of Sr which is overabundant by a factor of 10 as compared to iron and the Sun, suggests that neutron-capture elements had already been produced in the very early Galaxy. A puzzling Li depletion is observed in this unevolved star which contradicts the value of the primordial Li derived from WMAP and other Li studies. Possible scenarios for the origin of the abundance pattern (Pop. II or Pop. III) are presented as well as an outlook on future observations.en
dc.format.extent202725
dc.language.isoeng
dc.relation.ispartofProceedings of the International Astronomical Union
dc.titleThe new record holder for the most iron-poor star: HE 1327−2326, a dwarf or subgiant with [Fe/H] = −5.4en
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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