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)
58Fe 59Fe




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.313.5 ± 0.7--
0.012.1 ± 1.3--

(Version 0.0 corresponds to Bao et al.)
Comment
MACS vs. kT table multiplied by 1.115.
Last review: Nov. 4th, 2008
List of all available values
originalrenorm.yeartypeCommentRef
14.5 ± 0.7
kT=25keV
13.5 ± 0.72008cVdG, Act., Au:RaK88HKU08
14.3 ± 1.3
12.11983rVdG, TOF, Au:(B-IV)+(B-V)KWH83,AlM80
15.4 ± 1.5
1980c,2Linac, TOF, 6Li, Au:Sat., k=0.9655AlM80
4.5
1971sAGM71
19.76
2006eendfb7
15.06
2004ejeff31
14.06
2002ejendl33
12
2000tRaT99
6.6
1981tHar81
9.5
1978tWFH78
25.0
2002tMOST 2002Gor02
25.1
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:
cDirectly quoted from the reference itself
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
sSemiempirical estimates given in the reference
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
30.1
23.4
19.0
16.7 
14.5 ± 0.7
13.5 ± 0.7
12.3
10.9
10.4
9.6
8.6
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.80
1.97
1.96
1.99
1.93
1.97
2.07
2.06
2.15
2.29
2.29

MACS:
Reference: KWH83, HKU08
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: 1983,2008

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
58Ni
68.077
38.7 mb
59Ni
75.99 ka
87 mb, β+
60Ni
26.223
30 mb
61Ni
1.14
82 mb
62Ni
3.634
22.3 mb
57Co
271.76 d
β+
58Co
70.86 d
β+
59Co
100
38 mb
60Co
5.27 a
β-
61Co
1.65 h
β-
56Fe
91.754
11.7 mb
57Fe
2.119
40 mb
58Fe
0.282
12.1 mb
59Fe
44.50 d
β-
60Fe
1.50 Ma
β-
55Mn
100
39.6 mb
56Mn
2.58 h
β-
57Mn
1.42 m
β-
58Mn
3.00 s
β-
59Mn
4.59 s
β-
54Cr
2.365
6.7 mb
55Cr
3.50 m
β-
56Cr
5.94 m
β-
57Cr
21.10 s
β-
58Cr
7.00 s
β-
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Isotope: Iron
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