Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Oxygen (Z=8)
  16O   18O
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
16O 17O




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.00.038 ± 0.004--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
0.038 ± 0.004
1995cPelletron, TOF, Au:B-V MaG67bNIS95
0.00086 ± 0.00010
1981rCalcul. from data of MDH81BVW92
0.0002 ± 0.0001
1971cLinac, TOF, 127I:BNL-325,2nd(1966)AlM71
0.000170
2006eendfb7
0.000170
2004ejeff31
0.0314
2002ejendl33
0.002 ± 0.003
1992tWBV92
1.96
2002tMOST 2002Gor02
1.40
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
0.016
0.022
0.027
0.031
0.035
0.038 ± 0.004
0.044
.049
0.054
0.062
0.069
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
9.75
18.96
28.50
37.79
47.70
56.74
75.86
94.45
114.02
151.16
188.09

MACS:
Reference: NIS95
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: 1995

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:
. Please note: SEF for this element have not been calculated but are expected to be close to 1.
Rate:
Reaction rate NA<σv> given in 102 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
16Ne
0.00 ms
P
17Ne
109.00 ms
β+
18Ne
1.67 s
β+
19Ne
17.22 s
β+
20Ne
90.48%
0.119 mb
15F
0.00 ms
P
16F
0.00 ms
P
17F
1.07 m
β+
18F
1.83 h
β+
19F
100%
5.8 mb
14O
1.18 m
β+
15O
2.04 m
β+
16O
99.762%
0.038 mb
17O
0.038%
18O
0.2%
0.00886 mb
13N
9.96 m
β+
14N
99.634%
0.041 mb
15N
0.366%
0.0058 mb
16N
7.13 s
β-
17N
4.17 s
β-
12C
98.89%
0.0154 mb
13C
1.11%
0.021 mb
14C
5.70 ka
0.00848 mb, β-
15C
2.45 s
β-
16C
747.00 ms
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Oxygen