Relative Importance of Convective Uncertainties

Etienne A. Kaiser; Raphael Hirschi; W. David Arnett; Andrea Cristini; Cyril Georgy; Laura J.A. Scott

doi:10.1007/978-3-030-13876-9_71

Relative Importance of Convective Uncertainties

Etienne A. Kaiser, Raphael Hirschi, W. David Arnett, Andrea Cristini, Cyril Georgy, Laura J.A. Scott

Steward Observatory

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

Abstract

Convection plays a key role in the evolution of stars due to energy transport and mixing of composition. Despite its importance, this process is still not well understood. One longstanding conundrum in all 1D stellar evolution codes is the treatment of convective boundaries. In this study we compare two convective uncertainties, the boundary location (Ledoux versus Schwarzschild) and the amount of extra mixing, and their impact on the early evolution of massive stars. With increasing convective boundary mixing (CBM), we find a convergence of the two different boundary locations, a decreasing blue to red super giant ratio and a reduced importance of semiconvection.

Original language	English (US)
Title of host publication	Nuclei in the Cosmos XV
Editors	Alba Formicola, Matthias Junker, Lucio Gialanella, Gianluca Imbriani
Publisher	Springer Science and Business Media, LLC
Pages	385-387
Number of pages	3
ISBN (Print)	9783030138752
DOIs	https://doi.org/10.1007/978-3-030-13876-9_71
State	Published - 2019
Event	15th International Symposium on Nuclei in the Cosmos, NIC 2018 - L'Aquila, Italy Duration: Jun 24 2018 → Jun 29 2018

Publication series

Name	Springer Proceedings in Physics
Volume	219
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Conference

Conference	15th International Symposium on Nuclei in the Cosmos, NIC 2018
Country/Territory	Italy
City	L'Aquila
Period	6/24/18 → 6/29/18

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1007/978-3-030-13876-9_71

Cite this

Kaiser, E. A., Hirschi, R., Arnett, W. D., Cristini, A., Georgy, C., & Scott, L. J. A. (2019). Relative Importance of Convective Uncertainties. In A. Formicola, M. Junker, L. Gialanella, & G. Imbriani (Eds.), Nuclei in the Cosmos XV (pp. 385-387). (Springer Proceedings in Physics; Vol. 219). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-030-13876-9_71

Relative Importance of Convective Uncertainties. / Kaiser, Etienne A.; Hirschi, Raphael; Arnett, W. David et al.
Nuclei in the Cosmos XV. ed. / Alba Formicola; Matthias Junker; Lucio Gialanella; Gianluca Imbriani. Springer Science and Business Media, LLC, 2019. p. 385-387 (Springer Proceedings in Physics; Vol. 219).

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

Kaiser, EA, Hirschi, R, Arnett, WD, Cristini, A, Georgy, C & Scott, LJA 2019, Relative Importance of Convective Uncertainties. in A Formicola, M Junker, L Gialanella & G Imbriani (eds), Nuclei in the Cosmos XV. Springer Proceedings in Physics, vol. 219, Springer Science and Business Media, LLC, pp. 385-387, 15th International Symposium on Nuclei in the Cosmos, NIC 2018, L'Aquila, Italy, 6/24/18. https://doi.org/10.1007/978-3-030-13876-9_71

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Relative Importance of Convective Uncertainties

Abstract

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