Matches in SemOpenAlex for { <https://semopenalex.org/work/W164468257> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W164468257 abstract "We have derived elemental abundances for a sample of nine IRAS sources with colours similar to those of post-AGB stars. For IRAS 01259+6823, IRAS 05208-2035, IRAS 04535+3747 and IRAS 08187-1905 this is the first detailed abundance analysis based upon high resolution spectra. Mild indication of s-processing for IRAS 01259+6823, IRAS 05208-2035 and IRAS 08187-1905 have been found and a more comprehensive study of s-process enhanced objects IRAS 17279-1119 and IRAS 22223+4327 have been carried out. We have also made a contemporary abundance analysis of the high galactic latitude supergiants BD+39 4926 and HD 107369. The former is heavily depleted in refractories and estimated [Zn/H] of -0.7 dex most likely gives initial metallicity of the star. For HD 107369 the abundances of alpha and Fe-peak elements are similar to those of halo objects and moderate deficiency of s-process elements is seen. IRAS 07140-2321 despite being a short period binary with circumstellar shell does not exhibit selective depletion of refractory elements. We have compiled the stellar parameters and abundances for post-AGB stars with s-process enhancement, those showing significant depletion of condensable elements and those showing neither. The compilation shows that the s-process enhanced group contains very small number of binaries, and observed [alpha/Fe] are generally similar to thick disc values. It is likely that they represent AGB evolution of single stars.The compilation of depleted group contains larger fraction of binaries and generally supports the hypothesis of dusty discs surrounding binary post-AGB stars inferred via the shape of their SED and mid IR interferometry. IRAS 07140-2321 and BD+39 4926 are difficult to explain with this scenario and indicate the existence of additional parameter/condition needed to explain the depletion phenomenon." @default.
- W164468257 created "2016-06-24" @default.
- W164468257 creator A5020600710 @default.
- W164468257 creator A5050486477 @default.
- W164468257 creator A5078246561 @default.
- W164468257 date "2011-09-08" @default.
- W164468257 modified "2023-09-27" @default.
- W164468257 title "Chemical Compositions of a sample of candidate post-AGB stars" @default.
- W164468257 cites W1591652027 @default.
- W164468257 cites W2094763229 @default.
- W164468257 hasPublicationYear "2011" @default.
- W164468257 type Work @default.
- W164468257 sameAs 164468257 @default.
- W164468257 citedByCount "0" @default.
- W164468257 crossrefType "posted-content" @default.
- W164468257 hasAuthorship W164468257A5020600710 @default.
- W164468257 hasAuthorship W164468257A5050486477 @default.
- W164468257 hasAuthorship W164468257A5078246561 @default.
- W164468257 hasConcept C121332964 @default.
- W164468257 hasConcept C1276947 @default.
- W164468257 hasConcept C150846664 @default.
- W164468257 hasConcept C181313176 @default.
- W164468257 hasConcept C184665706 @default.
- W164468257 hasConcept C198785896 @default.
- W164468257 hasConcept C4397270 @default.
- W164468257 hasConcept C44870925 @default.
- W164468257 hasConcept C4839761 @default.
- W164468257 hasConcept C505870484 @default.
- W164468257 hasConcept C77077793 @default.
- W164468257 hasConcept C86803240 @default.
- W164468257 hasConcept C98444146 @default.
- W164468257 hasConcept C99465377 @default.
- W164468257 hasConceptScore W164468257C121332964 @default.
- W164468257 hasConceptScore W164468257C1276947 @default.
- W164468257 hasConceptScore W164468257C150846664 @default.
- W164468257 hasConceptScore W164468257C181313176 @default.
- W164468257 hasConceptScore W164468257C184665706 @default.
- W164468257 hasConceptScore W164468257C198785896 @default.
- W164468257 hasConceptScore W164468257C4397270 @default.
- W164468257 hasConceptScore W164468257C44870925 @default.
- W164468257 hasConceptScore W164468257C4839761 @default.
- W164468257 hasConceptScore W164468257C505870484 @default.
- W164468257 hasConceptScore W164468257C77077793 @default.
- W164468257 hasConceptScore W164468257C86803240 @default.
- W164468257 hasConceptScore W164468257C98444146 @default.
- W164468257 hasConceptScore W164468257C99465377 @default.
- W164468257 hasLocation W1644682571 @default.
- W164468257 hasOpenAccess W164468257 @default.
- W164468257 hasPrimaryLocation W1644682571 @default.
- W164468257 hasRelatedWork W1548840487 @default.
- W164468257 hasRelatedWork W1790922966 @default.
- W164468257 hasRelatedWork W1971972731 @default.
- W164468257 hasRelatedWork W1987095739 @default.
- W164468257 hasRelatedWork W1988324187 @default.
- W164468257 hasRelatedWork W1998934211 @default.
- W164468257 hasRelatedWork W2013993487 @default.
- W164468257 hasRelatedWork W2018738963 @default.
- W164468257 hasRelatedWork W2089056654 @default.
- W164468257 hasRelatedWork W2110140531 @default.
- W164468257 hasRelatedWork W2157716850 @default.
- W164468257 hasRelatedWork W2263849334 @default.
- W164468257 hasRelatedWork W2409398603 @default.
- W164468257 hasRelatedWork W2909136709 @default.
- W164468257 hasRelatedWork W3098107886 @default.
- W164468257 hasRelatedWork W3100644897 @default.
- W164468257 hasRelatedWork W3101599144 @default.
- W164468257 hasRelatedWork W3102683676 @default.
- W164468257 hasRelatedWork W3105151423 @default.
- W164468257 isParatext "false" @default.
- W164468257 isRetracted "false" @default.
- W164468257 magId "164468257" @default.
- W164468257 workType "article" @default.