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   59Fe   60Fe
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
59Fe 60Fe




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.023.6 ± 5.2--

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset in v1.0. Rec. value is deduced from UAA14 by normalizing various theoretical predictions (RaT99, jendl40, jeff30A, tendl15) to the values of UAA14 between kT=80-100 keV, and extrapolating these cross sections down to kT= 5 keV. The uncertainty is the deviation between the predictions for kT=5-30 keV, and taken as 20% for kT>40 keV.
Last review: June 2016
List of all available values
originalrenorm.yeartypeCommentRef
13.3 +2.0 -3.1
kT= 80 keV
23.6 ± 5.22014,2016cCoulomb dissociation; en.dep. from RaT99,jendl40,jeff30A,tendl15UAA14
53.1
2015tTENDL-2015 using the TALYS codetendl15
13.36
2011tJENDL-4.0jendl40
16.2
2004tJEFF-3.0/Ajeff30A
53.8
2005tMOST 2005Gor05
59
2002tMOST 2002Gor02
22.5
2000tNON-SMOKERRaT99


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
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
89 ± 39
-
50 ± 21
37 ± 14
30 ± 10
26.3 ± 7.0
23.6 ± 5.2
19.9 ± 4.0
17.4 ± 3.5
15.7 ± 3.1
13.2 ± 2.6
11.5 ± 2.3
Xfactor1.001.001.001.001.001.001.001.001.001.000.990.98
SEF1.001.001.001.001.001.001.001.001.000.990.990.97
Rate
5.31
-
4.22
3.82
3.58
3.51
3.45
3.36
3.28
3.22
3.11
2.98

MACS:
Reference: UAA14, RaT99,jendl40,jeff30A,tendl15
Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.)
Year: 2016

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Chart of nuclei
up
left
59Ni
75.99 ka
87 mb, β+
60Ni
26.223
30 mb
61Ni
1.14
82 mb
62Ni
3.634
22.3 mb
63Ni
100.11 a
31 mb, β-
58Co
70.86 d
β+
59Co
100
38 mb
60Co
5.27 a
β-
61Co
1.65 h
β-
62Co
1.50 m
β-
57Fe
2.119
40 mb
58Fe
0.282
12.1 mb
59Fe
44.50 d
β-
60Fe
1.50 Ma
β-
61Fe
5.98 m
β-
56Mn
2.58 h
β-
57Mn
1.42 m
β-
58Mn
3.00 s
β-
59Mn
4.59 s
β-
60Mn
51.00 s
β-
55Cr
3.50 m
β-
56Cr
5.94 m
β-
57Cr
21.10 s
β-
58Cr
7.00 s
β-
59Cr
460.00 ms
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Iron