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)
60Fe 61Fe




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.35.15 ± 1.41--
0.0 - --

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset in KADoNiS. Recommended cross section is value from URS09 renormalized with factor 0.573 which accounts for the new half-life of 2.62 (4) My from GR09.
Last review: July 15th, 2009
List of all available values
originalrenorm.yeartypeCommentRef
9.9 ± 3.1
kT=25keV
5.15 ± 1.412009cVdG, Act., Au:RaK88; half-life from GR09URS09
5.33
2000tRaT99
3.9
1978tWFH78
7.2
2002tMOST 2002Gor02
6.8
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
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
 
 
 
 
5.66
5.15 ± 1.41
4.42
3.90
3.52
3.00
2.65
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate----
7.55
7.52
7.45
7.35
7.27
7.15
7.07

MACS:
Reference: URS09, RaT99
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: 2009

SEF (Stellar enhancement factor):
Reference: RaT99
Year: 2000
Comment:

Rate:
Reaction rate NA<σv> given in 105 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
60Ni
26.223
30 mb
61Ni
1.14
82 mb
62Ni
3.634
22.3 mb
63Ni
100.11 a
31 mb, β-
64Ni
0.926
8.7 mb
59Co
100
38 mb
60Co
5.27 a
β-
61Co
1.65 h
β-
62Co
1.50 m
β-
63Co
27.40 s
β-
58Fe
0.282
12.1 mb
59Fe
44.50 d
β-
60Fe
1.50 Ma
β-
61Fe
5.98 m
β-
62Fe
1.13 m
β-
57Mn
1.42 m
β-
58Mn
3.00 s
β-
59Mn
4.59 s
β-
60Mn
51.00 s
β-
61Mn
670.00 ms
β-
56Cr
5.94 m
β-
57Cr
21.10 s
β-
58Cr
7.00 s
β-
59Cr
460.00 ms
β-
60Cr
570.00 ms
β-
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Isotope: Iron
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