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)
48Ca 49Ca




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.00.87 ± 0.09--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
0.623 ± 0.047
52keV
0.8201997cVdG, Act., 1/v(kT), Au:KNA87,MHW75MOB97
0.751 ± 0.068
25keV
0.6861996rVdG, Act., Au:RaK88,Mac82eBCS96
0.95 ± 0.09
0.941985cVdG, Act., 1/v(kT), Au:657mb(25keV)KWM85
1.05 ± 0.13
1987cLinac, TOF, 6Li, Au:Sat.CHM87
1.03 ± 0.13
1984cLinac, TOF, 6Li, Au:Sat.CHH84
0.108
2006eendfb7
0.108
2004ejeff31
0.108
2002ejendl33
0.655
52keV
0.8621997tMOB97
0.7
2000tRaT99
1.039
1996tKBO96
1.1
1978tWFH78
1.12
2002tMOST 2002Gor02
1.05
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
2.13
1.50
1.23
1.06
0.95
0.87 ± 0.09
0.75
0.67
0.61
0.53
0.47
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.27
1.27
1.27
1.27
1.27
1.27
1.27
1.27
1.26
1.27
1.26

MACS:
Reference: KWM85,MOB97
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: 1997

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
48Ti
73.72%
31.8 mb
49Ti
5.41%
22.1 mb
50Ti
5.18%
3.6 mb
51Ti
5.76 m
β-
52Ti
1.70 m
β-
47Sc
3.35 d
β-
48Sc
1.82 d
β-
49Sc
57.20 m
β-
50Sc
1.71 m
β-
51Sc
12.40 s
β-
46Ca
0.004%
5.3 mb
47Ca
4.54 d
β-
48Ca
0.187%
0.87 mb
49Ca
8.72 m
β-
50Ca
13.90 s
β-
45K
17.30 m
β-
46K
1.75 m
β-
47K
17.50 s
β-
48K
6.80 s
β-
49K
1.26 s
β-
44Ar
11.87 m
β-
45Ar
21.48 s
β-
46Ar
8.40 s
β-
47Ar
1.23 s
β-
48Ar
480.00 ms
β-
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Calcium