KADoNiS - Karlsruhe Astrophysical Database of Nucleosynthesis in Stars

Karlsruhe Astrophysical Database of Nucleosynthesis in Stars

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¹⁶⁸Yb ¹⁷⁰Yb ¹⁷¹Yb ¹⁷²Yb ¹⁷³Yb ¹⁷⁴Yb ¹⁷⁵Yb ¹⁷⁶Yb

¹⁷⁰Yb

¹⁷¹Yb

Total MACS at 30keV:

768

Cross sections do not include stellar enhancement factors!

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
0.0	768 ± 7	-	-

(Version 0.0 corresponds to Bao et al.)

Last review: 1999

original	renorm.	year	type	Comment	Ref
768.3 ± 7.2		1998	c	VdG, TOF, Au:RaK88,Mac82e	WVK98c,WVA00
989 ± 50		1992	c	VdG, TOF, Au+Ag+Nd+etc.:Sat.	BKP92
738 ± 29	731	1984	c	VdG, TOF, Au:Mac82e	BWM84
766 ± 30	713	1981	c	VdG, TOF, Au:B-IV	BKW81
790 ± 60	739	1979	c	VdG, TOF, Au:624mb(kT=30keV)	AlC79
510		1971	s		AGM71
667		2000	t		RaT99
757		1981	t		Har81
990		1976	t		HWF76
685		2002	t	MOST 2002	Gor02
510		2005	t	MOST 2005	Gor05

Original:MACS [<σ v>/v_T] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise.
Renorm:MACS [<σ v>/v_T] (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:

c	Directly quoted from the reference itself
s	Semiempirical estimates given in the reference
t	Theoretical value

Energy	5keV	10keV	15keV	20keV	25keV	30keV	40keV	50keV	60keV	80keV	100keV
MACS	1863	1322	1077	936	840	768 ± 7	665	592	539	464	414
SEF	1.00	1.00	1.01	1.05	1.10	1.15	1.24	1.30	1.35	1.43	1.50
Rate	1.10	1.11	1.12	1.17	1.23	1.28	1.38	1.44	1.49	1.58	1.65

MACS:
Reference: WVK98c
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: 1998

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

Rate:
Reaction rate N_A<σv> given in 10⁸ cm³/mole/s, including SEF

¹⁷⁰Hf 16.01 h β⁺	¹⁷¹Hf 12.10 h β⁺	¹⁷²Hf 1.87 a β⁺	¹⁷³Hf 23.60 h β⁺	¹⁷⁴Hf 0.16 956 mb
¹⁶⁹Lu 1.42 d β⁺	¹⁷⁰Lu 2.01 d β⁺	¹⁷¹Lu 8.24 d β⁺	¹⁷²Lu 6.70 d β⁺	¹⁷³Lu 1.37 a β⁺
¹⁶⁸Yb 0.13 1214 mb	¹⁶⁹Yb 32.02 d β⁺	¹⁷⁰Yb 3.04 768 mb	¹⁷¹Yb 14.28 1210 mb	¹⁷²Yb 21.83 341 mb
¹⁶⁷Tm 9.25 d β⁺	¹⁶⁸Tm 93.10 d β⁺	¹⁶⁹Tm 100 1129 mb	¹⁷⁰Tm 128.59 d 1870 mb, β^-	¹⁷¹Tm 1.92 a 486 mb, β^-
¹⁶⁶Er 33.503 563 mb	¹⁶⁷Er 22.869 1425 mb	¹⁶⁸Er 26.978 338 mb	¹⁶⁹Er 9.39 d 653 mb, β^-	¹⁷⁰Er 14.91 170 mb

Isotope: Ytterbium