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)
43Ca 44Ca




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.051 ± 6--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
51 ± 6
1977c,2Linac, TOF, 6Li, Au:Sat.MAB77b
35.34
2006eendfb7
35.34
2004ejeff31
34.32
2002ejendl33
37
2000tRaT99
32
1978tWFH78
201
2002tMOST 2002Gor02
176
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
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
230
129
92.4
72.4
59.7
51 ± 6
39.8
33.2
28.8
23.7
20.9
SEF1.001.001.001.001.001.001.001.001.001.000.99
Rate
1.38
1.09
0.96
0.87
0.80
0.75
0.67
0.63
0.60
0.57
0.56

MACS:
Reference: MAB77b
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: 1977

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
43Ti
509.00 ms
β+
44Ti
59.99 a
β+
45Ti
3.08 h
β+
46Ti
8.25%
26.8 mb
47Ti
7.44%
64.4 mb
42Sc
681.00 ms
β+
43Sc
3.89 h
β+
44Sc
3.97 h
β+
45Sc
100%
69 mb
46Sc
83.79 d
β-
41Ca
102.01 ka
30 mb, β+
42Ca
0.647%
15.6 mb
43Ca
0.135%
51 mb
44Ca
2.09%
9.4 mb
45Ca
162.62 d
17.5 mb, β-
40K
1.25x109 y
31 mb, β-
41K
6.7302%
22 mb
42K
12.32 h
β-
43K
22.30 h
β-
44K
22.13 m
β-
39Ar
269.01 a
8 mb, β-
40Ar
99.6003%
2.6 mb
41Ar
1.83 h
β-
42Ar
32.90 a
β-
43Ar
5.37 m
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Calcium