New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars

B. Gao; S. Giraud; K. A. Li; A. Sieverding; R. G.T. Zegers; X. Tang; J. Ash; Y. Ayyad-Limonge; D. Bazin; S. Biswas; B. A. Brown; J. Chen; M. Denudt; P. Farris; J. M. Gabler; A. Gade; T. Ginter; M. Grinder; A. Heger; C. Hultquist; A. M. Hill; H. Iwasaki; E. Kwan; J. Li; B. Longfellow; C. Maher; F. Ndayisabye; S. Noji; J. Pereira; C. Qi; J. Rebenstock; A. Revel; D. Rhodes; A. Sanchez; J. Schmitt; C. Sumithrarachchi; B. H. Sun; D. Weisshaar

doi:10.1103/PhysRevLett.126.152701

New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars

B. Gao
, S. Giraud
, K. A. Li
, A. Sieverding
, R. G.T. Zegers
, X. Tang
, J. Ash
, Y. Ayyad-Limonge
, D. Bazin
, S. Biswas
, B. A. Brown
, J. Chen
, M. Denudt
, P. Farris
, J. M. Gabler
, A. Gade
, T. Ginter
, M. Grinder
, A. Heger
, C. Hultquist

A. M. Hill, H. Iwasaki, E. Kwan, J. Li, B. Longfellow, C. Maher, F. Ndayisabye, S. Noji, J. Pereira, C. Qi, J. Rebenstock, A. Revel, D. Rhodes, A. Sanchez, J. Schmitt, C. Sumithrarachchi, B. H. Sun, D. Weisshaar

School of Physics

Chinese Academy of Sciences
School of Nuclear Science and Technology
University of Chinese Academy of Sciences
Michigan State University
University of Minnesota Twin Cities
Department of Physics and Astronomy
School of Physics & Astronomy
Monash University
Physics Department
KTH Royal Institute of Technology
International Research Center for Nuclei and Particles in the Cosmos

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The discrepancy between observations from γ-ray astronomy of the Fe60/Al26 γ-ray flux ratio and recent calculations is an unresolved puzzle in nuclear astrophysics. The stellar β-decay rate of Fe59 is one of the major nuclear uncertainties impeding us from a precise prediction. The important Gamow-Teller strengths from the low-lying states in Fe59 to the Co59 ground state are measured for the first time using the exclusive measurement of the Co59(t,He3+γ)Fe59 charge-exchange reaction. The new stellar decay rate of Fe59 is a factor of 3.5±1.1 larger than the currently adopted rate at T=1.2 GK. Stellar evolution calculations show that the Fe60 production yield of an 18 solar mass star is decreased significantly by 40% when using the new rate. Our result eliminates one of the major nuclear uncertainties in the predicted yield of Fe60 and alleviates the existing discrepancy of the Fe60/Al26 ratio.

Original language	English
Article number	152701
Journal	Physical Review Letters
Volume	126
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.126.152701
State	Published - 12 Apr 2021

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10.1103/PhysRevLett.126.152701

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Gao, B., Giraud, S., Li, K. A., Sieverding, A., Zegers, R. G. T., Tang, X., Ash, J., Ayyad-Limonge, Y., Bazin, D., Biswas, S., Brown, B. A., Chen, J., Denudt, M., Farris, P., Gabler, J. M., Gade, A., Ginter, T., Grinder, M., Heger, A., ... Weisshaar, D. (2021). New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars. Physical Review Letters, 126(15), Article 152701. https://doi.org/10.1103/PhysRevLett.126.152701

@article{68dc2a61016141e295293ec48d9bfd53,

title = "New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars",

abstract = "The discrepancy between observations from γ-ray astronomy of the Fe60/Al26 γ-ray flux ratio and recent calculations is an unresolved puzzle in nuclear astrophysics. The stellar β-decay rate of Fe59 is one of the major nuclear uncertainties impeding us from a precise prediction. The important Gamow-Teller strengths from the low-lying states in Fe59 to the Co59 ground state are measured for the first time using the exclusive measurement of the Co59(t,He3+γ)Fe59 charge-exchange reaction. The new stellar decay rate of Fe59 is a factor of 3.5±1.1 larger than the currently adopted rate at T=1.2 GK. Stellar evolution calculations show that the Fe60 production yield of an 18 solar mass star is decreased significantly by 40\% when using the new rate. Our result eliminates one of the major nuclear uncertainties in the predicted yield of Fe60 and alleviates the existing discrepancy of the Fe60/Al26 ratio.",

author = "B. Gao and S. Giraud and Li, \{K. A.\} and A. Sieverding and Zegers, \{R. G.T.\} and X. Tang and J. Ash and Y. Ayyad-Limonge and D. Bazin and S. Biswas and Brown, \{B. A.\} and J. Chen and M. Denudt and P. Farris and Gabler, \{J. M.\} and A. Gade and T. Ginter and M. Grinder and A. Heger and C. Hultquist and Hill, \{A. M.\} and H. Iwasaki and E. Kwan and J. Li and B. Longfellow and C. Maher and F. Ndayisabye and S. Noji and J. Pereira and C. Qi and J. Rebenstock and A. Revel and D. Rhodes and A. Sanchez and J. Schmitt and C. Sumithrarachchi and Sun, \{B. H.\} and D. Weisshaar",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = apr,

day = "12",

doi = "10.1103/PhysRevLett.126.152701",

language = "英语",

volume = "126",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

Gao, B, Giraud, S, Li, KA, Sieverding, A, Zegers, RGT, Tang, X, Ash, J, Ayyad-Limonge, Y, Bazin, D, Biswas, S, Brown, BA, Chen, J, Denudt, M, Farris, P, Gabler, JM, Gade, A, Ginter, T, Grinder, M, Heger, A, Hultquist, C, Hill, AM, Iwasaki, H, Kwan, E, Li, J, Longfellow, B, Maher, C, Ndayisabye, F, Noji, S, Pereira, J, Qi, C, Rebenstock, J, Revel, A, Rhodes, D, Sanchez, A, Schmitt, J, Sumithrarachchi, C, Sun, BH & Weisshaar, D 2021, 'New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars', Physical Review Letters, vol. 126, no. 15, 152701. https://doi.org/10.1103/PhysRevLett.126.152701

TY - JOUR

T1 - New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars

AU - Gao, B.

AU - Giraud, S.

AU - Li, K. A.

AU - Sieverding, A.

AU - Zegers, R. G.T.

AU - Tang, X.

AU - Ash, J.

AU - Ayyad-Limonge, Y.

AU - Bazin, D.

AU - Biswas, S.

AU - Brown, B. A.

AU - Chen, J.

AU - Denudt, M.

AU - Farris, P.

AU - Gabler, J. M.

AU - Gade, A.

AU - Ginter, T.

AU - Grinder, M.

AU - Heger, A.

AU - Hultquist, C.

AU - Hill, A. M.

AU - Iwasaki, H.

AU - Kwan, E.

AU - Li, J.

AU - Longfellow, B.

AU - Maher, C.

AU - Ndayisabye, F.

AU - Noji, S.

AU - Pereira, J.

AU - Qi, C.

AU - Rebenstock, J.

AU - Revel, A.

AU - Rhodes, D.

AU - Sanchez, A.

AU - Schmitt, J.

AU - Sumithrarachchi, C.

AU - Sun, B. H.

AU - Weisshaar, D.

PY - 2021/4/12

Y1 - 2021/4/12

N2 - The discrepancy between observations from γ-ray astronomy of the Fe60/Al26 γ-ray flux ratio and recent calculations is an unresolved puzzle in nuclear astrophysics. The stellar β-decay rate of Fe59 is one of the major nuclear uncertainties impeding us from a precise prediction. The important Gamow-Teller strengths from the low-lying states in Fe59 to the Co59 ground state are measured for the first time using the exclusive measurement of the Co59(t,He3+γ)Fe59 charge-exchange reaction. The new stellar decay rate of Fe59 is a factor of 3.5±1.1 larger than the currently adopted rate at T=1.2 GK. Stellar evolution calculations show that the Fe60 production yield of an 18 solar mass star is decreased significantly by 40% when using the new rate. Our result eliminates one of the major nuclear uncertainties in the predicted yield of Fe60 and alleviates the existing discrepancy of the Fe60/Al26 ratio.

AB - The discrepancy between observations from γ-ray astronomy of the Fe60/Al26 γ-ray flux ratio and recent calculations is an unresolved puzzle in nuclear astrophysics. The stellar β-decay rate of Fe59 is one of the major nuclear uncertainties impeding us from a precise prediction. The important Gamow-Teller strengths from the low-lying states in Fe59 to the Co59 ground state are measured for the first time using the exclusive measurement of the Co59(t,He3+γ)Fe59 charge-exchange reaction. The new stellar decay rate of Fe59 is a factor of 3.5±1.1 larger than the currently adopted rate at T=1.2 GK. Stellar evolution calculations show that the Fe60 production yield of an 18 solar mass star is decreased significantly by 40% when using the new rate. Our result eliminates one of the major nuclear uncertainties in the predicted yield of Fe60 and alleviates the existing discrepancy of the Fe60/Al26 ratio.

UR - https://www.scopus.com/pages/publications/85104407298

U2 - 10.1103/PhysRevLett.126.152701

DO - 10.1103/PhysRevLett.126.152701

M3 - 文章

C2 - 33929230

AN - SCOPUS:85104407298

SN - 0031-9007

VL - 126

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 152701

ER -

New Fe 59 Stellar Decay Rate with Implications for the Fe 60 Radioactivity in Massive Stars

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