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

^*Corresponding author for this work

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

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
DOIs	https://doi.org/10.1063/1.2916975
Publication status	Published - 2008
Event	9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics - Perugia, Italy Duration: 21 Oct 2007 → 27 Oct 2007

Publication series

Name	AIP Conference Proceedings
Volume	1001
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics
Country/Territory	Italy
City	Perugia
Period	21/10/07 → 27/10/07

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10.1063/1.2916975

Cite this

Lugaro, M., Karakas, A. I., Van Raai, M., García-Hernández, D. A., & Trigo-Rodríguez, J. M. (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 (pp. 269-276). (AIP Conference Proceedings; Vol. 1001). https://doi.org/10.1063/1.2916975

@inproceedings{b0065de2524c4ea1bc4979a9e98ebc40,

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.\}",

year = "2008",

doi = "10.1063/1.2916975",

language = "English",

isbn = "9780735405202",

series = "AIP Conference Proceedings",

pages = "269--276",

booktitle = "Ninth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics",

note = "9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics ; Conference date: 21-10-2007 Through 27-10-2007",

}

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. AIP Conference Proceedings, vol. 1001, pp. 269-276, 9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics, Perugia, Italy, 21/10/07. 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. 2008. p. 269-276 (AIP Conference Proceedings; Vol. 1001).

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

TY - GEN

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.

PY - 2008

Y1 - 2008

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

UR - https://www.scopus.com/pages/publications/84875000006

U2 - 10.1063/1.2916975

DO - 10.1063/1.2916975

M3 - Conference Paper

SN - 9780735405202

T3 - AIP Conference Proceedings

SP - 269

EP - 276

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

T2 - 9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics

Y2 - 21 October 2007 through 27 October 2007

ER -

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

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