Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Strontium (Z=38)
  84Sr   86Sr   87Sr   88Sr   89Sr
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
89Sr 90Sr




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.019 ± 14*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
37
2000tRaT99
40
1976tHWF76
24.2
2002tMOST 2002Gor02
22.0
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
69
43
32
26
22
19 ± 14
15
13
12
10
8
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
4.10
3.62
3.30
3.09
2.93
2.77
2.52
2.44
2.47
2.38
2.13

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 106 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
89Zr
3.27 d
β+
90Zr
51.45%
19.4 mb
91Zr
11.22%
60 mb
92Zr
17.15%
33 mb
93Zr
1.53 Ma
95 mb, β-
88Y
106.62 d
β+
89Y
100%
19 mb
90Y
2.67 d
β-
91Y
58.51 d
β-
92Y
3.54 h
β-
87Sr
7%
92 mb
88Sr
82.58%
6.2 mb
89Sr
50.57 d
19 mb, β-
90Sr
28.90 a
β-
91Sr
9.63 h
β-
86Rb
18.64 d
202 mb, β-
87Rb
49.69x109 y
15.7 mb, β-
88Rb
17.77 m
β-
89Rb
15.15 m
β-
90Rb
2.63 m
β-
85Kr
10.72 a
55 mb, β-
86Kr
17.3%
3.4 mb
87Kr
1.27 h
β-
88Kr
2.84 h
β-
89Kr
3.15 m
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Strontium