S-process nucleosynthesis in AGB models with the FST prescription for convection

A. Yagüe; D. A. García-Hernández; Paolo Ventura; M. Lugaro

S-process nucleosynthesis in AGB models with the FST prescription for convection

A. Yagüe, D. A. García-Hernández, Paolo Ventura, M. Lugaro

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research

Abstract

The chemical evolution of asymptotic giant branch (AGB) stars depends greatly on the input physics (e.g., mass loss recipe, convective model). Variations in the hot bottom burning (HBB) strength, third dredge-up (TDU) efficiency and AGB evolutionary timescale are among the main consequences of adopting difierent input physics. The ATON evolutionary code stands apart from others in that it uses the Blocker mass loss prescription and the Full Spectrum of Turbulence (FST) convective model. We have developed an s-process module for ATON by extending the element network from 30 to 320 elements, which uses the physical inputs (such as temperature or density) calculated by ATON. Here we present the first preliminary results of s-process nucleosynthesis for ATON AGB models with different progenitor masses. These preliminary results are compared with predictions from other AGB nucleosynthesis models that use different input physics. We also outline our future tasks to improve the current s-process ATON simulations.

Original language	English
Title of host publication	Memorie della Societa Astronomica Italiana
Subtitle of host publication	Journal of the Italian Astronomical Society
Editors	P Ventura, D A Garcıa–Hernandez, M Groenewegen, J Th van Loon
Place of Publication	Florence Italy
Publisher	Italian Astronomical Society (SAIt)
Pages	237-242
Number of pages	6
Volume	87
Publication status	Published - 2016
Event	European Week of Astronomy and Space Science 2015: AGB stars: a key ingredient in the understanding and interpretation of stellar populations - Universidad de La Laguna, La Laguna, Spain Duration: 22 Jun 2015 → 26 Jun 2015 http://eas.unige.ch/EWASS2015/index.jsp

Publication series

Name	Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society
Publisher	Societa Astronomica Italiana
Number	2
Volume	87
ISSN (Print)	0037-8720
ISSN (Electronic)	1824-016X

Conference

Conference	European Week of Astronomy and Space Science 2015
Abbreviated title	EWASS 2015
Country/Territory	Spain
City	La Laguna
Period	22/06/15 → 26/06/15
Internet address	http://eas.unige.ch/EWASS2015/index.jsp

Keywords

Abundances
Nuclear reactions
Nucleosynthesis
Stars: Abundances
Stars: AGB and post-AGB
Stars: evolution
Stars: interiors

Access to Document

http://sait.oat.ts.astro.it/MSAIt870216/PDF/2016MmSAI..87..237Y.pdf

Cite this

Yagüe, A., García-Hernández, D. A., Ventura, P., & Lugaro, M. (2016). S-process nucleosynthesis in AGB models with the FST prescription for convection. In P. Ventura, D. A. Garcıa–Hernandez, M. Groenewegen, & J. T. van Loon (Eds.), Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society (Vol. 87, pp. 237-242). (Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society; Vol. 87, No. 2). Italian Astronomical Society (SAIt). http://sait.oat.ts.astro.it/MSAIt870216/PDF/2016MmSAI..87..237Y.pdf

Yagüe, A. ; García-Hernández, D. A. ; Ventura, Paolo et al. / S-process nucleosynthesis in AGB models with the FST prescription for convection. Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society. editor / P Ventura ; D A Garcıa–Hernandez ; M Groenewegen ; J Th van Loon. Vol. 87 Florence Italy : Italian Astronomical Society (SAIt), 2016. pp. 237-242 (Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society; 2).

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title = "S-process nucleosynthesis in AGB models with the FST prescription for convection",

abstract = "The chemical evolution of asymptotic giant branch (AGB) stars depends greatly on the input physics (e.g., mass loss recipe, convective model). Variations in the hot bottom burning (HBB) strength, third dredge-up (TDU) efficiency and AGB evolutionary timescale are among the main consequences of adopting difierent input physics. The ATON evolutionary code stands apart from others in that it uses the Blocker mass loss prescription and the Full Spectrum of Turbulence (FST) convective model. We have developed an s-process module for ATON by extending the element network from 30 to 320 elements, which uses the physical inputs (such as temperature or density) calculated by ATON. Here we present the first preliminary results of s-process nucleosynthesis for ATON AGB models with different progenitor masses. These preliminary results are compared with predictions from other AGB nucleosynthesis models that use different input physics. We also outline our future tasks to improve the current s-process ATON simulations.",

keywords = "Abundances, Nuclear reactions, Nucleosynthesis, Stars: Abundances, Stars: AGB and post-AGB, Stars: evolution, Stars: interiors",

author = "A. Yag{\"u}e and Garc{\'i}a-Hern{\'a}ndez, \{D. A.\} and Paolo Ventura and M. Lugaro",

year = "2016",

language = "English",

volume = "87",

series = "Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society",

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editor = "P Ventura and Garcıa–Hernandez, \{D A\} and M Groenewegen and \{van Loon\}, \{J Th\}",

booktitle = "Memorie della Societa Astronomica Italiana",

address = "Italy",

note = "European Week of Astronomy and Space Science 2015 : AGB stars: a key ingredient in the understanding and interpretation of stellar populations, EWASS 2015 ; Conference date: 22-06-2015 Through 26-06-2015",

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Yagüe, A, García-Hernández, DA, Ventura, P & Lugaro, M 2016, S-process nucleosynthesis in AGB models with the FST prescription for convection. in P Ventura, DA Garcıa–Hernandez, M Groenewegen & JT van Loon (eds), Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society. vol. 87, Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society, no. 2, vol. 87, Italian Astronomical Society (SAIt), Florence Italy, pp. 237-242, European Week of Astronomy and Space Science 2015, La Laguna, Spain, 22/06/15. <http://sait.oat.ts.astro.it/MSAIt870216/PDF/2016MmSAI..87..237Y.pdf>

S-process nucleosynthesis in AGB models with the FST prescription for convection. / Yagüe, A.; García-Hernández, D. A.; Ventura, Paolo et al.
Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society. ed. / P Ventura; D A Garcıa–Hernandez; M Groenewegen; J Th van Loon. Vol. 87 Florence Italy: Italian Astronomical Society (SAIt), 2016. p. 237-242 (Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society; Vol. 87, No. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research

TY - GEN

T1 - S-process nucleosynthesis in AGB models with the FST prescription for convection

AU - Yagüe, A.

AU - García-Hernández, D. A.

AU - Ventura, Paolo

AU - Lugaro, M.

PY - 2016

Y1 - 2016

N2 - The chemical evolution of asymptotic giant branch (AGB) stars depends greatly on the input physics (e.g., mass loss recipe, convective model). Variations in the hot bottom burning (HBB) strength, third dredge-up (TDU) efficiency and AGB evolutionary timescale are among the main consequences of adopting difierent input physics. The ATON evolutionary code stands apart from others in that it uses the Blocker mass loss prescription and the Full Spectrum of Turbulence (FST) convective model. We have developed an s-process module for ATON by extending the element network from 30 to 320 elements, which uses the physical inputs (such as temperature or density) calculated by ATON. Here we present the first preliminary results of s-process nucleosynthesis for ATON AGB models with different progenitor masses. These preliminary results are compared with predictions from other AGB nucleosynthesis models that use different input physics. We also outline our future tasks to improve the current s-process ATON simulations.

AB - The chemical evolution of asymptotic giant branch (AGB) stars depends greatly on the input physics (e.g., mass loss recipe, convective model). Variations in the hot bottom burning (HBB) strength, third dredge-up (TDU) efficiency and AGB evolutionary timescale are among the main consequences of adopting difierent input physics. The ATON evolutionary code stands apart from others in that it uses the Blocker mass loss prescription and the Full Spectrum of Turbulence (FST) convective model. We have developed an s-process module for ATON by extending the element network from 30 to 320 elements, which uses the physical inputs (such as temperature or density) calculated by ATON. Here we present the first preliminary results of s-process nucleosynthesis for ATON AGB models with different progenitor masses. These preliminary results are compared with predictions from other AGB nucleosynthesis models that use different input physics. We also outline our future tasks to improve the current s-process ATON simulations.

KW - Abundances

KW - Nuclear reactions

KW - Nucleosynthesis

KW - Stars: Abundances

KW - Stars: AGB and post-AGB

KW - Stars: evolution

KW - Stars: interiors

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M3 - Conference Paper

AN - SCOPUS:85025164050

VL - 87

T3 - Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society

SP - 237

EP - 242

BT - Memorie della Societa Astronomica Italiana

A2 - Ventura, P

A2 - Garcıa–Hernandez, D A

A2 - Groenewegen, M

A2 - van Loon, J Th

PB - Italian Astronomical Society (SAIt)

CY - Florence Italy

T2 - European Week of Astronomy and Space Science 2015

Y2 - 22 June 2015 through 26 June 2015

ER -

Yagüe A, García-Hernández DA, Ventura P, Lugaro M. S-process nucleosynthesis in AGB models with the FST prescription for convection. In Ventura P, Garcıa–Hernandez DA, Groenewegen M, van Loon JT, editors, Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society. Vol. 87. Florence Italy: Italian Astronomical Society (SAIt). 2016. p. 237-242. (Memorie della Societa Astronomica Italiana: Journal of the Italian Astronomical Society; 2).

S-process nucleosynthesis in AGB models with the FST prescription for convection

Abstract

Publication series

Conference

Keywords

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