Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Argon (Z=18)
  36Ar   38Ar   39Ar   40Ar
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
38Ar 39Ar




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.03.0 ± 0.3*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
3.9
2000tRaT99
2.6
1978tWFH78
11.7
2002tMOST 2002Gor02
8.07
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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
10.6
6.5
4.8
3.9
3.4
3.0 ± 0.3
2.5
2.2
2.0
1.8
1.6
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
6.35
5.51
4.98
4.67
4.55
4.40
4.24
4.17
4.15
4.31
4.29

MACS:
Reference:
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2000

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
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Argon