Transport parameters from AMS-02 F/Si data and fluorine source abundance

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Volume 688 (August 2024)

A&A, 688 (2024) A17

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Table 2.

Comparisons of best-fit transport parameters (in SLIM) from various combinations of AMS-02 data.

Config.	Ref.	δ	${log}_{10} (\frac{K_{0}}{1 {kpc}^{2} {Myr}^{- 1}})$ $\log_{10}\left(\frac{K_0}{{1\,\mathrm{kpc}^2\,\mathrm{Myr}^{-1}}}\right)$	R_l [GV]	δ_l	${log}_{10} (\frac{q_{^{19} F}}{q_{^{28} Si}})$ $\log_{10}\left(\frac{q_{^{19}\mathrm{F}}}{q_{^{28}\mathrm{Si}}}\right)$	$χ_{\min}^{2} / d . o . f .$ $\chi^{2}_{\mathrm{min}}/\mathrm{d.o.f.}$	$χ_{nui}^{2} / n_{nui}$ $\chi^{2}_{\mathrm{nui}}/n_{\mathrm{nui}}$
F/Si (q_¹⁹F = 0)	This paper	0.449 ± 0.020	−1.156 ± 0.054	4.21 ± 0.33	−0.45 ± 0.33	–	0.68	0.04
B/C	[Gé19]	0.509 ± 0.017	−1.361 ± 0.047	4.38 ± 0.22	−0.87 ± 0.32	–	0.98	0.04
(Li,Be,B)/C	[Ma22]	0.500 ± 0.010	−1.330 ± 0.025	4.67 ± 0.40	−0.36 ± 0.23	–	1.21	0.50
F/Si+(Li,Be,B)/C	This paper	0.492 ± 0.008	−1.293 ± 0.021	4.55 ± 0.24	−0.39 ± 0.13	$- 3 . 0_{- \infty}^{+ 0.6}$ $-3.0^{+0.6}_{-\infty}$	1.12	0.4

Notes. The data combinations (line entries) analysed are: F/Si alone with OPT12up22 cross-section set (this analysis); B/C alone (Génolini et al. 2019); combined (Li,Be,B)/C with OPT12up22 cross-section set (Maurin et al. 2022a); and combined (Li,Be,B)/C and F/Si data with updated production cross sections (Appendix B) (see text for discussion).

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