The Impact of the Uncertainties in the 12C(α, γ)16O Reaction Rate on the Asteroseismology of ZZ Ceti Stars: First Results

被引：0
|
作者：
De Geronimo, Francisco C. [1 ,2 ]
Corsico, Alejandro H. [1 ,2 ]
Althaus, Leandro G. [1 ,2 ]
Romero, Alejandra D. [3 ]
机构：
[1] Univ Nacl La Plata, Fac Ciencias Astron & Geofis, Paseo Bosque S-N, RA-1900 La Plata, Buenos Aires, Argentina
[2] Consejo Nacl Invest Cient & Tecn, Inst Astrofis La Plata, Paseo Bosque S-N, RA-1900 La Plata, Buenos Aires, Argentina
[3] Univ Fed Rio Grande do Sul, Dept Astron, BR-91501970 Porto Alegre, RS, Brazil
来源：
19TH EUROPEAN WORKSHOP ON WHITE DWARFS | 2015年 / 493卷
关键词：
FULLY EVOLUTIONARY MODELS; WHITE-DWARF STARS;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We assess for the first time the impact that the uncertainties affecting the C-12(alpha, gamma)O-16 reaction rate have on the asteroseismological inferences of ZZ Ceti stars. For our adopted test-case, the well studied DAV star G117-B15A, we found that the incomplete knowledge of the C-12(alpha, gamma)O-16 nuclear reaction rate results in a moderate dispersion of the structural parameters of the asteroseismological model.
引用
收藏
页码：225 / 228
页数：4
相关论文
共 50 条
  • [1] Impact of 16O(γ, α)12C measurements on the 12C(α, γ)16O astrophysical reaction rate
    Holt, R. J.
    Filippone, B. W.
    Pieper, Steven C.
    PHYSICAL REVIEW C, 2019, 99 (05)
  • [2] White dwarf asteroseismology and the 12C(α, γ) 16O rate
    Metcalfe, TS
    ASTROPHYSICAL JOURNAL, 2003, 587 (01): : L43 - L46
  • [3] Impact of 16O(e, e′ α)12C measurements on the 12C(α, γ)16O astrophysical reaction rate
    Holt, R. J.
    Filippone, B. W.
    PHYSICAL REVIEW C, 2019, 100 (06)
  • [4] The impact of the uncertainties in the 12C(α, γ)16O reaction rate on the evolution of low- to intermediate-mass stars
    Pepper, Ben T.
    Istrate, A. G.
    Romero, A. D.
    Kepler, S. O.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 513 (01) : 1499 - 1512
  • [5] The 12C(α,γ)16O reaction, in the laboratory and in the stars
    de Boer, R. J.
    Best, A.
    Brune, C. R.
    Chieffi, A.
    Hebborn, C.
    Imbriani, G.
    Liu, W. P.
    Shen, Y. P.
    Timmes, F. X.
    Wiescher, M.
    EUROPEAN PHYSICAL JOURNAL A, 2025, 61 (04):
  • [6] Can white dwarf asteroseismology really constrain the 12C(α, γ) 16O reaction rate?
    Fontaine, G
    Brassard, P
    ASTROPHYSICAL JOURNAL, 2002, 581 (01): : L33 - L37
  • [7] 16O(e,e′α)12C measurements and the 12C(α,γ)16O astrophysical reaction rate
    Potterveld, D. H.
    Filippone, B. W.
    Holt, R. J.
    Friscic, I.
    PHYSICAL REVIEW C, 2024, 110 (03)
  • [8] Comments on the 12C(α, γ)16O reaction rate
    Buchmann, L
    NUCLEAR PHYSICS A, 2005, 758 : 355C - 362C
  • [9] Astrophysical reaction rate of 12C(α, γ)16O
    Kunz, R
    Fey, M
    Jaeger, M
    Mayer, A
    Hammer, JW
    Staudt, G
    Harissopulos, S
    Paradellis, T
    ASTROPHYSICAL JOURNAL, 2002, 567 (01): : 643 - 650
  • [10] NEW ASTROPHYSICAL REACTION RATE FOR THE 12C(α, γ)16O REACTION
    An, Zhen-Dong
    Ma, Yu-Gang
    Fan, Gong-Tao
    Li, Yong-Jiang
    Chen, Zhen-Peng
    Sun, Ye-Ying
    ASTROPHYSICAL JOURNAL LETTERS, 2016, 817 (01)
12345