Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Iron (Z=26)
  54Fe   55Fe   56Fe   57Fe   58Fe   60Fe
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
57Fe 58Fe




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.040 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
39.9 ± 4.0
1983rLinac, TOF, 10B, Ag:Sat.RBC83
36.0 ± 2.3
1977c,2Linac, TOF, 6Li, Au:Sat., k=1.0360AMT77
28 ± 6
1975cVdG, TOF, Au:596mb Kom69BSE74,BeS75
30 ± 5
1971eAGM71
28.48
2006eendfb7
30.29
2004ejeff31
30.26
2002ejendl33
28
2000tRaT99
27
1981tHar81
21
1978tWFH78
56.5
2002tMOST 2002Gor02
49.6
2005tMOST 2005Gor05


Original:MACS [<σ v>/vT] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise.
Renorm:MACS [<σ v>/vT] (mb) for kT=30 keV for which the reference or standard cross section was meanwhile improved.
Type: The letters and numbers in the column labelled 'type' give information on how the cross section has been obtained:
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
cDirectly quoted from the reference itself
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
124
86
67
54
46
40 ± 4
32
26
23
19
16
SEF1.001.001.031.061.091.121.161.191.211.251.27
Rate
7.39
7.28
7.14
6.85
6.71
6.54
6.25
5.82
5.75
5.64
5.43

MACS:
Reference: RBC83
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1983

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
57Ni
1.48 d
β+
58Ni
68.077%
38.7 mb
59Ni
75.99 ka
87 mb, β+
60Ni
26.223%
30 mb
61Ni
1.14%
82 mb
56Co
77.23 d
β+
57Co
271.76 d
β+
58Co
70.86 d
β+
59Co
100%
38 mb
60Co
5.27 a
β-
55Fe
2.74 a
75 mb, β+
56Fe
91.754%
11.7 mb
57Fe
2.119%
40 mb
58Fe
0.282%
12.1 mb
59Fe
44.50 d
β-
54Mn
312.15 d
β+
55Mn
100%
39.6 mb
56Mn
2.58 h
β-
57Mn
1.42 m
β-
58Mn
3.00 s
β-
53Cr
9.501%
58 mb
54Cr
2.365%
6.7 mb
55Cr
3.50 m
β-
56Cr
5.94 m
β-
57Cr
21.10 s
β-
right
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Iron