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Related papers: Chemical evolution and abundance gradients in the …

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Based on a simple, but fairly successful, model of the chemical evolution of the Milky Way disk, we study the evolution of the abundances of the elements He, C, N, O, Ne, Mg, Al, Si, S, Ar and Fe. We use metallicity dependent yields for…

Astrophysics · Physics 2007-05-23 J. L. Hou , N. Prantzos , S. Boissier

We model the abundance gradients in the disk of the Milky Way for several chemical elements (O, Mg, Si, S, Ca, Sc, Ti, Co, V, Fe, Ni, Zn, Cu, Mn, Cr, Ba, La and Eu), and compare our results with the most recent and homogeneous observational…

Astrophysics · Physics 2009-11-11 G. Cescutti , F. Matteucci , P. Francois , C. Chiappini

Chemical abundances of stars in the Milky Way disk are empirical tracers of its enrichment history. However, they capture joint-information that is valuable to disentangle. In this work, we seek to quantify how individual abundances evolve…

Astrophysics of Galaxies · Physics 2023-02-08 Bridget Ratcliffe , Melissa Ness

We have developed a detailed standard chemical evolution model to study the evolution of all the chemical elements up to the iron peak in the solar vicinity. We consider that the Galaxy was formed through two episodes of exponentially…

Astrophysics · Physics 2009-10-31 Andreu Alibes , Javier Labay , Ramon Canal

We present results for the evolution of the abundances of heavy elements (O, Mg, Al, Si, K, Ca, Cr, Mn, Ni and Fe) in the inner Galactic regions ($R_{GC} < 4$kpc). We adopt a detailed chemical evolution model already tested for the Galactic…

Astrophysics of Galaxies · Physics 2020-05-06 F. Matteucci , A. Vasini , V. Grisoni , M. Schultheis

Chemical abundances are an essential tool in untangling the Milky Way's enrichment history. However, the evolution of the interstellar medium abundance gradient with cosmic time is lost as a result of radial mixing processes. For the first…

Radial metallicity gradients are observed in the disks of the Milky Way and in several other spiral galaxies. In the case of the Milky Way, many objects can be used to determine the gradients, such as HII regions, B stars, Cepheids, open…

Astrophysics of Galaxies · Physics 2015-05-14 W. J. Maciel , R. D. D. Costa

In this paper we study the very early phases of the evolution of our Galaxy by means of a chemical evolution model which reproduces most of the observational constraints in the solar vicinity and in the disk. We have restricted our analysis…

Astrophysics · Physics 2016-08-30 Cristina Chiappini , Francesca Matteucci , Timothy Beers , Ken'ichi Nomoto

In this paper, we study the formation and chemical evolution of the Milky Way disc with particular focus on the abundance patterns ([$\alpha$/Fe] vs. [Fe/H]) at different Galactocentric distances, the present-time abundance gradients along…

Astrophysics of Galaxies · Physics 2018-09-12 V. Grisoni , E. Spitoni , F. Matteucci

New results on the time variation of the radial abundance gradients in the galactic disk are presented on the basis of four different samples of planetary nebulae. These comprise both smaller, homogeneous sets of data, and larger but…

Astrophysics · Physics 2009-11-11 W. J. Maciel , L. G. Lago , R. D. D. Costa

We present a comprehensive study of the evolution of the abundances of intermediate mass elements, from C to Zn, in the Milky Way halo and in the local disk. We use a consistent model to describe the evolution of those two galactic…

Astrophysics · Physics 2007-05-23 Aruna Goswami , Nikos Prantzos

We calculate the evolution of heavy element abundances from C to Zn in the solar neighborhood adopting our new nucleosynthesis yields. Our yields are calculated for wide ranges of metallicity (Z=0-Z_\odot) and the explosion energy (normal…

Astrophysics · Physics 2008-11-26 C. Kobayashi , H. Umeda , K. Nomoto , N. Tominaga , T. Ohkubo

We will discuss some highlights concerning the chemical evolution of our Galaxy, the Milky Way. First we will describe the main ingredients necessary to build a model for the chemical evolution of the Milky Way. Then we will illustrate some…

Astrophysics of Galaxies · Physics 2019-04-24 Francesca Matteucci , Emanuele Spitoni , Donatella Romano , Alvaro Rojas-Arriagada

The formation and chemical evolution of the Milky Way Galaxy is numerically simulated by developing a Monte Carlo approach to predict the elemental abundance gradients and other galactic features using the revised solar abundance. The…

Astrophysics of Galaxies · Physics 2018-10-10 Sandeep Sahijpal , Tejpreet Kaur

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…

Isotope ratios have opened a new window into the study of the details of stellar evolution, supernovae, and galactic chemical evolution. We present the evolution of the isotope ratios of elemental abundances (from C to Zn) in the solar…

Astrophysics of Galaxies · Physics 2015-05-27 Chiaki Kobayashi , Amanda I. Karakas , Hideyuki Umeda

We review the state of our chemical evolution models for spiral and low mass galaxies. We analyze the consequences of using different stellar yields, infall rate laws and star formation prescriptions in the time/redshift evolution of the…

Astrophysics of Galaxies · Physics 2017-11-15 M. Mollá , O. Cavichia , R. D. D Costa , W. J. Maciel , B. K. Gibson , A. I. Díaz

An important step in understanding the formation and evolution of the Nuclear Star Cluster (NSC) is to investigate its chemistry and chemical evolution. Additionally, exploring the relationship of the NSC to the other structures in the…

Astrophysics of Galaxies · Physics 2025-02-26 Govind Nandakumar , Nils Ryde , Mathias Schultheis , R. Michael Rich , Paola Di Matteo , Brian Thorsbro , Gregory Mace

In this paper we adopt a chemical evolution model, which is an improved version of the Chiappini, Matteucci and Gratton (1997) model, assuming two main accretion episodes for the formation of the Galaxy. The present model takes into account…

Astrophysics · Physics 2009-11-06 Cristina Chiappini , Francesca Matteucci , Donatella Romano

We study the evolution of oxygen abundance radial gradients as a function of time for the Milky Way Galaxy obtained with our {\sc Mulchem} chemical evolution model. We review the recent data of abundances for different objects observed in…

Astrophysics of Galaxies · Physics 2018-10-31 M. Mollá , Á. I. Díaz , O. Cavichia , B. K. Gibson , W. J. Maciel , R. D. D. Costa , Y. Ascasibar , C. G. Few
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