Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Calcium (Z=20)
  40Ca   41Ca   42Ca   43Ca   44Ca   45Ca   46Ca   48Ca
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
46Ca 47Ca




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.05.3 ± 0.5--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
4.9 ± 0.6
1999cVdG, Act., Au:RaK88,Mac82eMSB99
2.3 ± 0.3
1993cF.N.B., Act., 10BMur93
5.7 ± 0.5
5.61985cVdG, Act., 1/v(kT), Au:657mb(25keV)KWM85
1.86
2006eendfb7
1.86
2004ejeff31
0.945
2002ejendl33
3.1
2000tRaT99
3.7
1978tWFH78
3.90
2002tMOST 2002Gor02
3.72
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
7.2
8.6
8.0
7.0
6.1
5.3 ± 0.5
4.2
3.5
3.0
2.4
2.0
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
4.30
7.27
8.28
8.37
8.15
7.76
7.10
6.62
6.21
5.74
5.35

MACS:
Reference: MSB99,KWM85
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: 1999

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
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
46Ti
8.25%
26.8 mb
47Ti
7.44%
64.4 mb
48Ti
73.72%
31.8 mb
49Ti
5.41%
22.1 mb
50Ti
5.18%
3.6 mb
45Sc
100%
69 mb
46Sc
83.79 d
β-
47Sc
3.35 d
β-
48Sc
1.82 d
β-
49Sc
57.20 m
β-
44Ca
2.09%
9.4 mb
45Ca
162.62 d
17.5 mb, β-
46Ca
0.004%
5.3 mb
47Ca
4.54 d
β-
48Ca
0.187%
0.87 mb
43K
22.30 h
β-
44K
22.13 m
β-
45K
17.30 m
β-
46K
1.75 m
β-
47K
17.50 s
β-
42Ar
32.90 a
β-
43Ar
5.37 m
β-
44Ar
11.87 m
β-
45Ar
21.48 s
β-
46Ar
8.40 s
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Calcium