FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4285301844> ?p ?o ?g. }

• W4285301844 endingPage "5504" @default.
• W4285301844 startingPage "5477" @default.
• W4285301844 abstract "ABSTRACT An ensemble of chemical abundances probing different nucleosynthetic channels can be leveraged to build a comprehensive understanding of the chemical and structural evolution of the Galaxy. Using GALAH DR3 data, we seek to trace the enrichment by the supernovae Ia, supernovae II, asymptotic giant branch stars, and neutron-star mergers and/or collapsars nucleosynthetic sources by studying the [Fe/H], [α/Fe], [Ba/Fe], and [Eu/Fe] chemical compositions of ∼50 000 red giant stars, respectively. Employing small [Fe/H]–[α/Fe] cells, which serve as an effective reference-frame of supernovae contributions, we characterize the abundance-age profiles for [Ba/Fe] and [Eu/Fe]. Our results disclose that these age–abundance relations vary across the [Fe/H]–[α/Fe] plane. Within cells, we find negative age–[Ba/Fe] relations and flat age–[Eu/Fe] relations. Across cells, we see the slope of the age–[Ba/Fe] relations evolve smoothly and the [Eu/Fe] relations vary in amplitude. We subsequently model our empirical findings in a theoretical setting using the flexible Chempy Galactic chemical evolution (GCE) code, using the mean [Fe/H], [Mg/Fe], [Ba/Fe], and age values for stellar populations binned in [Fe/H], [Mg/Fe], and age space. We find that within a one-zone framework, an ensemble of GCE model parameters vary to explain the data. Using present day orbits from Gaia EDR3 measurements we infer that the GCE model parameters, which set the observed chemical abundance distributions, vary systematically across mean orbital radii. Under our modelling assumptions, the observed chemical abundances are consistent with a small gradient in the high-mass end of the initial mass function (IMF) across the disc, where the IMF is more top heavy towards the inner disc and more bottom heavy in the outer disc." @default.
• W4285301844 created "2022-07-14" @default.
• W4285301844 creator A5004242476 @default.
• W4285301844 creator A5005304021 @default.
• W4285301844 creator A5011243474 @default.
• W4285301844 creator A5013918544 @default.
• W4285301844 creator A5067946504 @default.
• W4285301844 date "2022-05-12" @default.
• W4285301844 modified "2023-10-16" @default.
• W4285301844 title "Neutron-capture elements record the ordered chemical evolution of the disc over time" @default.
• W4285301844 cites W1537348606 @default.
• W4285301844 cites W1851157365 @default.
• W4285301844 cites W1965127856 @default.
• W4285301844 cites W1968807574 @default.
• W4285301844 cites W1972474208 @default.
• W4285301844 cites W1975889887 @default.
• W4285301844 cites W1977439877 @default.
• W4285301844 cites W1979379324 @default.
• W4285301844 cites W1981675530 @default.
• W4285301844 cites W1984555273 @default.
• W4285301844 cites W1988245473 @default.
• W4285301844 cites W1990612987 @default.
• W4285301844 cites W1994166266 @default.
• W4285301844 cites W2002652818 @default.
• W4285301844 cites W2004327796 @default.
• W4285301844 cites W2009489905 @default.
• W4285301844 cites W2011301426 @default.
• W4285301844 cites W2011490256 @default.
• W4285301844 cites W2015295900 @default.
• W4285301844 cites W2023393381 @default.
• W4285301844 cites W2025020517 @default.
• W4285301844 cites W2029263067 @default.
• W4285301844 cites W2030212922 @default.
• W4285301844 cites W2041434381 @default.
• W4285301844 cites W2049001136 @default.
• W4285301844 cites W2056789852 @default.
• W4285301844 cites W2058151487 @default.
• W4285301844 cites W2064743375 @default.
• W4285301844 cites W2066453499 @default.
• W4285301844 cites W2067644575 @default.
• W4285301844 cites W2086421432 @default.
• W4285301844 cites W2089630383 @default.
• W4285301844 cites W2097111096 @default.
• W4285301844 cites W2100479967 @default.
• W4285301844 cites W2102288963 @default.
• W4285301844 cites W2103165993 @default.
• W4285301844 cites W2105954496 @default.
• W4285301844 cites W2116220027 @default.
• W4285301844 cites W2121480729 @default.
• W4285301844 cites W2125174497 @default.
• W4285301844 cites W2126597027 @default.
• W4285301844 cites W2127304902 @default.
• W4285301844 cites W2129760210 @default.
• W4285301844 cites W2135625048 @default.
• W4285301844 cites W2135690153 @default.
• W4285301844 cites W2142220522 @default.
• W4285301844 cites W2152356810 @default.
• W4285301844 cites W2157594202 @default.
• W4285301844 cites W2165521545 @default.
• W4285301844 cites W2168615249 @default.
• W4285301844 cites W2169344843 @default.
• W4285301844 cites W2216753448 @default.
• W4285301844 cites W2221310439 @default.
• W4285301844 cites W2344683712 @default.
• W4285301844 cites W2474034009 @default.
• W4285301844 cites W2474336635 @default.
• W4285301844 cites W2485876312 @default.
• W4285301844 cites W2509043249 @default.
• W4285301844 cites W2513362382 @default.
• W4285301844 cites W2517333666 @default.
• W4285301844 cites W2519316327 @default.
• W4285301844 cites W2519556414 @default.
• W4285301844 cites W2520926510 @default.
• W4285301844 cites W2558134614 @default.
• W4285301844 cites W2603123366 @default.
• W4285301844 cites W2616831680 @default.
• W4285301844 cites W2621194439 @default.
• W4285301844 cites W2641302393 @default.
• W4285301844 cites W2737701238 @default.
• W4285301844 cites W2752078209 @default.
• W4285301844 cites W2761919827 @default.
• W4285301844 cites W2765113916 @default.
• W4285301844 cites W2765448295 @default.
• W4285301844 cites W2766140821 @default.
• W4285301844 cites W2766948326 @default.
• W4285301844 cites W2783752474 @default.
• W4285301844 cites W2783976032 @default.
• W4285301844 cites W2785892561 @default.
• W4285301844 cites W2786988971 @default.
• W4285301844 cites W2790602718 @default.
• W4285301844 cites W2797843582 @default.
• W4285301844 cites W2883358591 @default.
• W4285301844 cites W2885274016 @default.
• W4285301844 cites W2886058984 @default.
• W4285301844 cites W2888532099 @default.
• W4285301844 cites W2890840461 @default.
• W4285301844 cites W2891905216 @default.
• W4285301844 cites W2911118502 @default.

• next