Zobrazeno 1 - 10
of 6 805
pro vyhledávání: '"GALACTIC CHEMICAL EVOLUTION"'
Autor:
Jost, Finia P., Molero, Marta, Navó, Gerard, Arcones, Almudena, Obergaulinger, Martin, Matteucci, Francesca
We provide yields from 189 neutrino-driven core-collapse supernova (CCSN) simulations covering zero-age main sequence masses between 11 and 75 solar masses and three different metallicities. Our CCSN simulations have two main advantages compared to p
Externí odkaz:
http://arxiv.org/abs/2407.14319
We examine the galactic chemical evolution (GCE) of $^4$He in one-zone and multi-zone models, with particular attention to theoretical predictions and empirical constraints on IMF-averaged yields. Published models of massive star winds and core colla
Externí odkaz:
http://arxiv.org/abs/2404.08765
Type Ia supernovae (SNe Ia) produce most of the Fe-peak elements in the Universe and therefore are a crucial ingredient in galactic chemical evolution models. SNe Ia do not explode immediately after star formation, and the delay-time distribution (DT
Externí odkaz:
http://arxiv.org/abs/2404.08059
We explore the influence of the Milky Way galaxy's chemical evolution on the formation, structure, and habitability of the Solar system. Using a multi-zone Galactic Chemical Evolution (GCE) model, we successfully reproduce key observational constrain
Externí odkaz:
http://arxiv.org/abs/2310.10335
Autor:
Coria, David R., Crossfield, Ian J. M., Lothringer, Joshua, Flores, Becky, Prantzos, Nikos, Freedman, Richard
Publikováno v:
The Astrophysical Journal (ApJ 2023) Volume 954 Number 2 Page 121
We present the first isotopic abundances of both $^{13}$CO and C$^{18}$O in solar twin stars and test the results against several galactic chemical evolution (GCE) models with different nucleosynthesis prescriptions. First, we compare M-band spectra
Externí odkaz:
http://arxiv.org/abs/2308.16261
Publikováno v:
A&A 678, A74 (2023)
As stellar compositions evolve over time in the Milky Way, so will the resulting planet populations. In order to place planet formation in the context of Galactic chemical evolution, we make use of a large ($N = 5\,325$) stellar sample representing t
Externí odkaz:
http://arxiv.org/abs/2308.15504
The partcle-induced hadronic de-excitation of the Hoyle state in $^{12}$C induced by inelastic scattering in a hot and dense plasma can enhance the triple-alpha reaction rate. This prevents the production of heavy nuclei within the neutrino-driven wi
Externí odkaz:
http://arxiv.org/abs/2307.02785
Autor:
Hough, Renier T., Rennehan, Douglas, Kobayashi, Chiaki, Loubser, S. Ilani, Davé, Romeel, Babul, Arif, Cui, Weiguang
We introduce a new chemical enrichment and stellar feedback model into GIZMO, using the SIMBA sub-grid models as a base. Based on the state-of-the-art chemical evolution model of Kobayashi et al., SIMBA-C tracks 34 elements from H$\rightarrow$Ge and
Externí odkaz:
http://arxiv.org/abs/2308.03436
Autor:
Weinberg, David H.
Dramatic recent progress in understanding galactic chemical evolution (GCE) has been driven partly by direct observations of the distant past with HST and JWST of stellar abundances from giant high-resolution spectroscopic surveys (APOGEE, GALAH) and
Externí odkaz:
http://arxiv.org/abs/2306.09133
Publikováno v:
The Astrophysical Journal, Volume 953, Number 2 (2023)
Fluxes of the diffuse supernova neutrino background (DSNB) are calculated based on a new modeling of galactic chemical evolution, where a variable stellar initial mass function (IMF) depending on the galaxy type is introduced and black hole (BH) form
Externí odkaz:
http://arxiv.org/abs/2305.13543