Table A.1: Parameters of fitted model for NGC 1097, with notation as in Eq. (B.1).
Ring $1.25<r<2.5~{\rm kpc}$ $1.25<r<2.5~{\rm kpc}$ $2.5<r<3.75~{\rm kpc}$ $2.5<r<3.75~{\rm kpc}$ $3.75<r<5~{\rm kpc}$

Azimuth $20^{\circ}\le\phi\le190^{\circ}$ $200^{\circ}\le\phi\le370^{\circ}$ $20^{\circ}\le\phi\le190^{\circ}$ $200^{\circ}\le\phi\le370^{\circ}$ $0^{\circ}\le\phi\le350^{\circ}$

R₀
$~{\rm rad~m^{-2}}$ -169 $\pm30$ 55 ⁺⁴⁴_-7 -126 ⁺³³_-44 -57 $\pm14$ -155 $\pm8$

p₀ deg 41 $\pm2$ 27 $\pm2$ 36 $\pm4$ 35 $\pm6$ 23 $\pm2$

R₁ $~{\rm rad~m^{-2}}$ 43 $\pm12$ -51 $\pm7$

p₁ deg 131 $\pm22$ 82 $\pm16$

$\beta_1$ deg -105 $\pm10$ 82 $\pm5$

R₂ $~{\rm rad~m^{-2}}$ -339 ⁺⁴⁴_-52 48 ⁺⁷_-61 45 $\pm24$ 75 $\pm7$

p₂ deg 40 $\pm2$ -153 $\pm2$ 13 ⁺¹⁶_-24 3 $\pm4$

$\beta_2$ deg -25 $\pm3$ -21 $\pm41$ 12 $\pm15$ 5 $\pm5$

S
38 37 40 33 74

$\chi^2$ 44 45 47 45 78

**Table A.1:** Parameters of fitted model for NGC 1097, with notation as in Eq. (B.1).
	Ring	$1.25<r<2.5~{\rm kpc}$	$1.25<r<2.5~{\rm kpc}$	$2.5<r<3.75~{\rm kpc}$	$2.5<r<3.75~{\rm kpc}$	$3.75<r<5~{\rm kpc}$
	Azimuth	$20^{\circ}\le\phi\le190^{\circ}$	$200^{\circ}\le\phi\le370^{\circ}$	$20^{\circ}\le\phi\le190^{\circ}$	$200^{\circ}\le\phi\le370^{\circ}$	$0^{\circ}\le\phi\le350^{\circ}$
R₀	$~{\rm rad~m^{-2}}$	-169 $\pm30$	55 ⁺⁴⁴_-7	-126 ⁺³³_-44	-57 $\pm14$	-155 $\pm8$
p₀	deg	41 $\pm2$	27 $\pm2$	36 $\pm4$	35 $\pm6$	23 $\pm2$
R₁	$~{\rm rad~m^{-2}}$				43 $\pm12$	-51 $\pm7$
p₁	deg				131 $\pm22$	82 $\pm16$
$\beta_1$	deg				-105 $\pm10$	82 $\pm5$
R₂	$~{\rm rad~m^{-2}}$	-339 ⁺⁴⁴_-52	48 ⁺⁷_-61	45 $\pm24$		75 $\pm7$
p₂	deg	40 $\pm2$	-153 $\pm2$	13 ⁺¹⁶_-24		3 $\pm4$
$\beta_2$	deg	-25 $\pm3$	-21 $\pm41$	12 $\pm15$		5 $\pm5$
S		38	37	40	33	74
$\chi^2$		44	45	47	45	78

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 The radio maps
	4 The global magnetic structures
	5 The central regions
	6 The X-ray halo of NGC 1097
	7 Models of gas flow and magnetic field in the bar region
	8 Magnetic field compression and shearing in the radio ridge of NGC 1097
	9 Mass inflow through the nuclear ring of NGC 1097
	10 Summary and conclusions
	References
	Online Material
	Appendix A: The effect of compression and shear on a random magnetic field
	Appendix B: Parameters of the fitted regular magnetic fields