A massive AGB star as source of short-lived nuclei in the early solar system

M. Lugaro; A. I. Karakas; M. Van Raai; D. A. García-Hernández; J. M. Trigo-Rodríguez

doi:10.1063/1.2916975

A massive AGB star as source of short-lived nuclei in the early solar system

M. Lugaro, A. I. Karakas, M. Van Raai, D. A. García-Hernández, J. M. Trigo-Rodríguez

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

Abstract

The origin of short-lived radioactive nuclei at the time of the formation of the Sun is a much debated mystery in modern astronomy. We show that abundance predictions for massive AGB stars (roughly 6M_ȯ) of solar metallicity can self-consistently match the abundances of ²⁶Al, ⁴¹Ca, ⁶⁰Fe, and ¹⁰⁷Pd in the early Solar System, as derived from meteorite analysis. On the other hand our models do not produce ¹⁸²Hf, thus confirming previous results. Recent measurements of excesses in ⁶²Ni and ⁹⁶Zr, correlated to ⁶⁰Fe, can be accounted for by a massive AGB source. Moreover, these stars could be an important source of ⁸⁷Rb, as recently observed, and thus induce the fluctuations in the Rb/Sr ratio observed in primitive chondritic materials. Finally, we discuss recent observations of decoupling between the presence of ²⁶Al and ⁶⁰Fe in differentiated planetesimals and their implications on candidate stellar sources.

Original language	English
Title of host publication	Ninth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics
Pages	269-276
Number of pages	8
Volume	1001
DOIs	https://doi.org/10.1063/1.2916975
Publication status	Published - 1 Dec 2008
Externally published	Yes
Event	Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and Perugia Workshop on Nuclear Astrophysics 2007 - Perugia, Italy Duration: 22 Oct 2007 → 26 Oct 2007 Conference number: 9th http://inspirehep.net/record/878004

Conference

Conference	Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and Perugia Workshop on Nuclear Astrophysics 2007
Country/Territory	Italy
City	Perugia
Period	22/10/07 → 26/10/07
Internet address	http://inspirehep.net/record/878004

Keywords

AGB Stars
Meteorites
Nucleosynthesis
Solar System

Access to Document

10.1063/1.2916975

Cite this

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title = "A massive AGB star as source of short-lived nuclei in the early solar system",

abstract = "The origin of short-lived radioactive nuclei at the time of the formation of the Sun is a much debated mystery in modern astronomy. We show that abundance predictions for massive AGB stars (roughly 6Mȯ) of solar metallicity can self-consistently match the abundances of 26Al, 41Ca, 60Fe, and 107Pd in the early Solar System, as derived from meteorite analysis. On the other hand our models do not produce 182Hf, thus confirming previous results. Recent measurements of excesses in 62Ni and 96Zr, correlated to 60Fe, can be accounted for by a massive AGB source. Moreover, these stars could be an important source of 87Rb, as recently observed, and thus induce the fluctuations in the Rb/Sr ratio observed in primitive chondritic materials. Finally, we discuss recent observations of decoupling between the presence of 26Al and 60Fe in differentiated planetesimals and their implications on candidate stellar sources.",

keywords = "AGB Stars, Meteorites, Nucleosynthesis, Solar System",

author = "M. Lugaro and Karakas, {A. I.} and {Van Raai}, M. and Garc{\'i}a-Hern{\'a}ndez, {D. A.} and Trigo-Rodr{\'i}guez, {J. M.}",

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doi = "10.1063/1.2916975",

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}

Lugaro, M, Karakas, AI, Van Raai, M, García-Hernández, DA & Trigo-Rodríguez, JM 2008, A massive AGB star as source of short-lived nuclei in the early solar system. in Ninth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics. vol. 1001, pp. 269-276, Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and Perugia Workshop on Nuclear Astrophysics 2007, Perugia, Italy, 22/10/07. https://doi.org/10.1063/1.2916975

A massive AGB star as source of short-lived nuclei in the early solar system. / Lugaro, M.; Karakas, A. I.; Van Raai, M. et al.
Ninth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics. Vol. 1001 2008. p. 269-276.

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

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T1 - A massive AGB star as source of short-lived nuclei in the early solar system

AU - Lugaro, M.

AU - Karakas, A. I.

AU - Van Raai, M.

AU - García-Hernández, D. A.

AU - Trigo-Rodríguez, J. M.

N1 - Conference code: 9th

PY - 2008/12/1

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N2 - The origin of short-lived radioactive nuclei at the time of the formation of the Sun is a much debated mystery in modern astronomy. We show that abundance predictions for massive AGB stars (roughly 6Mȯ) of solar metallicity can self-consistently match the abundances of 26Al, 41Ca, 60Fe, and 107Pd in the early Solar System, as derived from meteorite analysis. On the other hand our models do not produce 182Hf, thus confirming previous results. Recent measurements of excesses in 62Ni and 96Zr, correlated to 60Fe, can be accounted for by a massive AGB source. Moreover, these stars could be an important source of 87Rb, as recently observed, and thus induce the fluctuations in the Rb/Sr ratio observed in primitive chondritic materials. Finally, we discuss recent observations of decoupling between the presence of 26Al and 60Fe in differentiated planetesimals and their implications on candidate stellar sources.

AB - The origin of short-lived radioactive nuclei at the time of the formation of the Sun is a much debated mystery in modern astronomy. We show that abundance predictions for massive AGB stars (roughly 6Mȯ) of solar metallicity can self-consistently match the abundances of 26Al, 41Ca, 60Fe, and 107Pd in the early Solar System, as derived from meteorite analysis. On the other hand our models do not produce 182Hf, thus confirming previous results. Recent measurements of excesses in 62Ni and 96Zr, correlated to 60Fe, can be accounted for by a massive AGB source. Moreover, these stars could be an important source of 87Rb, as recently observed, and thus induce the fluctuations in the Rb/Sr ratio observed in primitive chondritic materials. Finally, we discuss recent observations of decoupling between the presence of 26Al and 60Fe in differentiated planetesimals and their implications on candidate stellar sources.

KW - AGB Stars

KW - Meteorites

KW - Nucleosynthesis

KW - Solar System

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BT - Ninth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics

T2 - Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and Perugia Workshop on Nuclear Astrophysics 2007

Y2 - 22 October 2007 through 26 October 2007

ER -

A massive AGB star as source of short-lived nuclei in the early solar system

Abstract

Conference

Keywords

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