Matches in SemOpenAlex for { <https://semopenalex.org/work/W2112440848> ?p ?o ?g. }
- W2112440848 endingPage "612" @default.
- W2112440848 startingPage "601" @default.
- W2112440848 abstract "Context. The plateau in the abundance of 7 Li in metal-poor stars was initially interpreted as an observational indicator of the primordial lithium abundance. However, this observational value is in disagreement with that deduced from calculations of Big Bang nucleosynthesis (BBN), when using the Wilkinson microwave anisotropy probe (WMAP) baryon density measurements. One of the most important factors in determining the stellar lithium abundance is the effective temperature. In a previous study by the authors, new effective temperatures (Teff) for sixteen metal-poor halo dwarfs were derived using a local thermodynamic equilibrium (LTE) description of the formation of Fe lines. This new Teff scale reinforced the discrepancy. Aims. For six of the stars from our previous study we calculate revised temperatures using a non-local thermodynamic equilibrium (NLTE) approach. These are then used to derive a new mean primordial lithium abundance in an attempt to solve the lithium discrepancy. Methods. Using the code MULTI we calculate NLTE corrections to the LTE abundances for the Fe i lines measured in the six stars, and determine new Teff’s. We keep other physical parameters, i.e. log g ,[ Fe/H] and ξ, constant at the values calculated in Paper I. With the revised Teff scale we derive new Li abundances. We compare the NLTE values of Teff with the photometric temperatures of Ryan et al. (1999, ApJ, 523, 654), the infrared flux method (IRFM) temperatures of Melendez & Ramirez (2004, ApJ, 615, L33), and" @default.
- W2112440848 created "2016-06-24" @default.
- W2112440848 creator A5036671339 @default.
- W2112440848 creator A5047372854 @default.
- W2112440848 creator A5048321889 @default.
- W2112440848 creator A5063887198 @default.
- W2112440848 creator A5070976583 @default.
- W2112440848 creator A5075475814 @default.
- W2112440848 date "2009-01-01" @default.
- W2112440848 modified "2023-09-26" @default.
- W2112440848 title "Lithium abundances of halo dwarfs based on excitation temperatures. II : Non-local thermodynamic equilibrium" @default.
- W2112440848 cites W1499316341 @default.
- W2112440848 cites W1973693947 @default.
- W2112440848 cites W1973694448 @default.
- W2112440848 cites W1975510567 @default.
- W2112440848 cites W1975718398 @default.
- W2112440848 cites W1982490091 @default.
- W2112440848 cites W1987939665 @default.
- W2112440848 cites W1989745487 @default.
- W2112440848 cites W1996173899 @default.
- W2112440848 cites W1996603587 @default.
- W2112440848 cites W1997086491 @default.
- W2112440848 cites W1998229943 @default.
- W2112440848 cites W2000955316 @default.
- W2112440848 cites W2009505783 @default.
- W2112440848 cites W2013729192 @default.
- W2112440848 cites W2018763703 @default.
- W2112440848 cites W2024353730 @default.
- W2112440848 cites W2026411481 @default.
- W2112440848 cites W2031671936 @default.
- W2112440848 cites W2036110426 @default.
- W2112440848 cites W2036458192 @default.
- W2112440848 cites W2040847831 @default.
- W2112440848 cites W2046411730 @default.
- W2112440848 cites W2050362735 @default.
- W2112440848 cites W2053314888 @default.
- W2112440848 cites W2054408680 @default.
- W2112440848 cites W2060195076 @default.
- W2112440848 cites W2063906968 @default.
- W2112440848 cites W2069164871 @default.
- W2112440848 cites W2071599230 @default.
- W2112440848 cites W2071615312 @default.
- W2112440848 cites W2078229419 @default.
- W2112440848 cites W2092527085 @default.
- W2112440848 cites W2092804462 @default.
- W2112440848 cites W2093243095 @default.
- W2112440848 cites W2096298050 @default.
- W2112440848 cites W2097597961 @default.
- W2112440848 cites W2101482518 @default.
- W2112440848 cites W2104239745 @default.
- W2112440848 cites W2112535719 @default.
- W2112440848 cites W2117576477 @default.
- W2112440848 cites W2118353887 @default.
- W2112440848 cites W2119855645 @default.
- W2112440848 cites W2121134683 @default.
- W2112440848 cites W2122363774 @default.
- W2112440848 cites W2124371597 @default.
- W2112440848 cites W2130597289 @default.
- W2112440848 cites W2132358681 @default.
- W2112440848 cites W2132614018 @default.
- W2112440848 cites W2133437999 @default.
- W2112440848 cites W2133656293 @default.
- W2112440848 cites W2138270935 @default.
- W2112440848 cites W2139692428 @default.
- W2112440848 cites W2141821524 @default.
- W2112440848 cites W2145186773 @default.
- W2112440848 cites W2148601615 @default.
- W2112440848 cites W2155291506 @default.
- W2112440848 cites W2163333427 @default.
- W2112440848 cites W2164719957 @default.
- W2112440848 cites W2166338216 @default.
- W2112440848 cites W2166866667 @default.
- W2112440848 cites W2169963214 @default.
- W2112440848 cites W2342062453 @default.
- W2112440848 cites W2478116191 @default.
- W2112440848 cites W2559868168 @default.
- W2112440848 cites W2743653446 @default.
- W2112440848 cites W2950633805 @default.
- W2112440848 cites W2963764082 @default.
- W2112440848 cites W3015610339 @default.
- W2112440848 cites W3099331079 @default.
- W2112440848 cites W3106138404 @default.
- W2112440848 cites W3106231881 @default.
- W2112440848 cites W3125406988 @default.
- W2112440848 cites W3140297262 @default.
- W2112440848 cites W3159218983 @default.
- W2112440848 cites W501998787 @default.
- W2112440848 cites W610143231 @default.
- W2112440848 hasPublicationYear "2009" @default.
- W2112440848 type Work @default.
- W2112440848 sameAs 2112440848 @default.
- W2112440848 citedByCount "5" @default.
- W2112440848 countsByYear W21124408482012 @default.
- W2112440848 countsByYear W21124408482016 @default.
- W2112440848 countsByYear W21124408482020 @default.
- W2112440848 crossrefType "journal-article" @default.
- W2112440848 hasAuthorship W2112440848A5036671339 @default.
- W2112440848 hasAuthorship W2112440848A5047372854 @default.