Studying X-ray spectra from large-scale jets of Fanaroff–Riley type I radio galaxies: Application of shear particle acceleration

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Volume 708 (April 2026)

A&A, 708 (2026) A365

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Table 3.

Comparison of parameters between FR I and FR II.

Type	α₋	w	β_0, l	B	E_e, max	W_knot
				[μG]	[TeV]	[kpc]
FR I	2.02 ± 0.10 − 3.95 ± 0.19	$2 . 76_{- 0.43}^{+ 0.47} - 15 . 6_{- 1.62}^{+ 1.79}$ $Mathematical equation: $ 2.76^{+0.47}_{-0.43}{-}15.6^{+1.79}_{-1.62} $$	0.49 ± 0.02 − 0.88 ± 0.06	$4 . 56_{- 1.29}^{+ 2.07} - 20 . 0_{- 4.73}^{+ 6.72}$ $Mathematical equation: $ 4.56^{+2.07}_{-1.29}{-}20.0^{+6.72}_{-4.73} $$	$40 . 8_{- 14.9}^{+ 30.8} - 909_{- 424}^{+ 685}$ $Mathematical equation: $ 40.8^{+30.8}_{-14.9}{-}909^{+685}_{-424} $$	0.02 − 1.00
FR II	$1 . 8_{- 0.33}^{+ 0.41} - 2 . 7_{- 0.40}^{+ 0.62}$ $Mathematical equation: $ 1.8^{+0.41}_{-0.33}{-}2.7^{+0.62}_{-0.40} $$	$1 . 79_{- 0.56}^{+ 0.76} - 6 . 62_{- 2.31}^{+ 4.22}$ $Mathematical equation: $ 1.79^{+0.76}_{-0.56}{-}6.62^{+4.22}_{-2.31} $$	$0 . 80_{- 0.13}^{+ 0.09} - 0 . 99_{- 0.07}^{+ 0.01}$ $Mathematical equation: $ 0.80^{+0.09}_{-0.13}{-}0.99^{+0.01}_{-0.07} $$	$2 . 24_{- 0.45}^{+ 0.50} - 13_{- 1.83}^{+ 2.13}$ $Mathematical equation: $ 2.24^{+0.50}_{-0.45}{-}13^{+2.13}_{-1.83} $$	$64 . 5_{- 18.6}^{+ 26.1} - 851_{- 378}^{+ 643}$ $Mathematical equation: $ 64.5^{+26.1}_{-18.6}{-}851^{+643}_{-378} $$	0.60 − 4.06

Notes. For comparison, we restrict our discussion to the first two groups, which provide broader multiwavelength coverage and more reliable parameter constraints.

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