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相关论文: Galaxy Evolution tool: Construction and Applicatio…

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We analyse two recent computations of type II supernova nucleosynthesis by Woosley & Weaver (1995, WW95) and Thielemann, Nomoto, & Hashimoto (1996, TNH96), focusing on the ability to reproduce the observed [Mg/Fe]-ratios in various galaxy…

天体物理学 · 物理学 2009-10-30 D. Thomas , L. Greggio , R. Bender

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,…

星系天体物理 · 物理学 2025-02-19 David H. Weinberg

This is the second paper of a series which aims at quantifying the uncertainties in chemical evolution model predictions related to the underlying model assumptions. Specifically, it deals with the uncertainties due to the choice of the…

星系天体物理 · 物理学 2015-05-19 D. Romano , A. I. Karakas , M. Tosi , F. Matteucci

This paper presents the first results from a model for chemical evolution that can be applied to N-body cosmological simulations and quantitatively compared to measured stellar abundances from large astronomical surveys. This model…

星系天体物理 · 物理学 2015-09-29 Brian D. Crosby , Brian W. O'Shea , Timothy C. Beers , Jason Tumlinson

Chemical evolution models for the Galactic disk under an inside-out formation scenario are presented for seven sets of stellar yields, all of them metal dependent. In particular, the effects of yields from massive and…

天体物理学 · 物理学 2007-05-23 Leticia Carigi

We obtain two-infall galactic chemical evolution (GCE) models simulating the chemical evolution of the Milky Way as constrained by a golden sample of $394,000$ stellar abundances of the Milky Way Mapper survey from the 19th data release of…

I present a review of chemical evolution models of the solar neighborhood. I give special attention to the necessary ingredients to reproduce the observed [Xi/Fe] ratios in nearby metal and super metal rich stars, and to the chemical…

天体物理学 · 物理学 2007-05-23 L. Carigi

We present a set of low and intermediate mass star yields based on a modeling of the TP--AGB phase which affects the production of nitrogen and carbon. These yields are evaluated by using them in a Galaxy Chemical Evolution model, with…

天体物理学 · 物理学 2016-08-30 M. Gavilan , J. F. Buell , M. Molla

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…

高能天体物理现象 · 物理学 2025-01-15 Finia P. Jost , Marta Molero , Gerard Navó , Almudena Arcones , Martin Obergaulinger , Francesca Matteucci

We study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the initial composition. We use the solar abundances from Lodders (2009), and compute two different initial stellar…

太阳与恒星天体物理 · 物理学 2024-10-23 Christopher West , Alexander Heger , Benoit Cote , Lev Serxner , Haoxuan Sun

We present numerical simulations to describe the evolution of pre-Galactic clouds in a model which is motivated by cold dark matter simulations of hierarchical galaxy formation. We adopt a SN-induced star-formation mechanism within a model…

天体物理学 · 物理学 2007-05-23 Lamya Saleh , Timothy C. Beers , Grant J. Mathews

We study the metallicities and abundance ratios of early-type galaxies in cosmological semi-analytic models (SAMs) within the hierarchical galaxy formation paradigm. To achieve this we implemented a detailed galactic chemical evolution…

宇宙学与河外天体物理 · 物理学 2015-05-13 Matías Arrigoni , Scott C. Trager , Rachel S. Somerville , Brad K. Gibson

The trends of chemical abundances and abundance ratios observed in stars of different ages, kinematics, and metallicities bear the imprints of several physical processes that concur to shape the host galaxy properties. By inspecting these…

We compute the chemical evolution of the Galactic bulge in the context of an inside-out model for the formation of the Milky Way. The model contains updated stellar yields from massive stars. The main purpose of the paper is to compare the…

天体物理学 · 物理学 2009-11-13 Silvia K. Ballero , Francesca Matteucci , Livia Origlia , R. Michael Rich

Recent work has produced a wealth of data concerning the chemical evolution of the galactic bulge, both for stars and nebulae. Present theoretical models generally adopt a limited range of such constraints, frequently using a single…

星系天体物理 · 物理学 2009-01-29 R. D. D. Costa , W. J. Maciel , A. V. Escudero

(Abridged) The aim of this paper is to study the basic equations of the chemical evolution of galaxies with gas flows. We focus on models in which the outflow is differential, namely in which the heavy elements (or some of the heavy…

天体物理学 · 物理学 2009-11-13 S. Recchi , E. Spitoni , F. Matteucci , G. A. Lanfranchi

Uncertainties in stellar nucleosynthesis and their impact on models of chemical evolution are discussed. Comparing the Type II supernova nucleosynthesis prescriptions from Woosley & Weaver (1995) and Thielemann, Nomoto, & Hashimoto (1996),…

天体物理学 · 物理学 2007-05-23 Daniel Thomas , Laura Greggio , Ralf Bender

I present a new Galactic chemical evolution model motivated by and grounded in the hierarchical theory of galaxy formation, as expressed by a halo merger history of the Galaxy. This model accurately reproduces the "metallicity distribution…

天体物理学 · 物理学 2009-11-13 Jason Tumlinson

We present a theoretical method for solving the chemical evolution of galaxies, by assuming an instantaneous recycling approximation for chemical elements restored by massive stars and the Delay Time Distribution formalism for the delayed…

星系天体物理 · 物理学 2017-01-18 Fiorenzo Vincenzo , Francesca Matteucci , Emanuele Spitoni

One-zone Galactic Chemical Evolution (GCE) models have provided useful insights on a great wealth of average abundance patterns in many environments, especially for the Milky Way and its satellites. However, the scatter of such abundance…

星系天体物理 · 物理学 2023-04-12 Jinning Liang , Eda Gjergo , Xilong Fan