Table 2: Galaxy model fitting results (see text). The columns give (1) the model, (2) the RMLR (obtained using the ORBIT-DETE background model) and the number of free model parameters (DOF), (3) the bulge scale length, (4) the bulge scale height, (5)-(8) the 511 keV photon luminosity of the model components, and (9)-(12) the total $4\pi$ integrated 511 keV line all-sky flux in each of the model components. The prime indicates model components for which the scaling parameters were adjusted by the fit. The figures in parenthesis quoted in Cols. (5)-(12) indicate $1\sigma$ uncertainties in the last digit.
Model RMLR R₀ z₀ $\mbox{$L_{511}$ }$ (10⁴³ ph s^-1) 511 keV line flux (10^-3 ph cm^-2 s^-1)

(DOF) (kpc) (kpc) bulge disk halo total bulge disk halo total

G0 447.5 (1) 0.91 0.51 1.04 (3) 1.04 (3) 1.22 (4) 1.22 (4)

G1 445.7 (1) 0.97 (3) 0.97 (3) 1.19 (4) 1.19 (4)

G2 450.8 (1) 0.98 (3) 0.98 (3) 1.18 (3) 1.18 (3)

G3 462.2 (1) 0.98 (3) 0.98 (3) 1.18 (3) 1.18 (3)

E1 441.8 (1) 0.99 (4) 0.99 (4) 1.19 (4) 1.19 (4)

E2 453.1 (1) 1.01 (3) 1.01 (3) 1.19 (3) 1.19 (3)

E3 464.9 (1) 1.00 (3) 1.00 (3) 1.17 (3) 1.17 (3)

S $_{\rm F}$ 459.0 (1) 0.96 (3) 0.96 (3) 1.19 (3) 1.19 (3)

E $_{\rm F}$ 459.0 (1) 0.93 (2) 0.93 (2) 1.19 (3) 1.19 (3)

P $_{\rm F}$ 456.5 (1) 0.94 (3) 0.94 (3) 1.16 (3) 1.16 (3)

S $_{\rm PR}$ 456.3 (1) 0.94 (2) 0.94 (2) 1.22 (3) 1.22 (3)

G0' 462.5 (3) 0.52 (6) 0.45 (5) 0.94 (4) 0.94 (4) 1.09 (4) 1.09 (4)

E0' 464.2 (3) 0.37 (5) 0.42 (7) 0.98 (5) 0.98 (5) 1.15 (5) 1.15 (5)

H' 468.4 (4) 1.6 (3) 1.6 (3) 2.2 (4) 2.2 (4)

Shells 469.0 (2) 0.97 (3) 0.97 (3) 1.13 (3) 1.13 (3)

E3+D0 466.3 (2) 0.95 (3) 0.11 (5) 1.05 (4) 1.11 (4) 0.4 (2) 1.53 (5)

G0'+D0 465.2 (4) 0.48 (6) 0.46 (6) 0.87 (4) 0.15 (5) 1.03 (5) 1.01 (5) 0.6 (2) 1.61 (7)

E0'+D0 466.2 (4) 0.34 (4) 0.44 (8) 0.92 (5) 0.14 (5) 1.06 (5) 1.07 (6) 0.5 (2) 1.61 (8)

H'+D0 468.2 (5) 0.09 (8) 1.2 (3) 1.3 (3) 0.4 (3) 1.6 (5) 2.1 (5)

Shells+D0 472.2 (3) 0.91 (4) 0.15 (5) 1.05 (4) 1.05 (4) 0.6 (2) 1.62 (6)

E3+D1 468.8 (2) 0.93 (4) 0.23 (8) 1.15 (6) 1.09 (5) 0.8 (3) 1.90 (9)

G0'+D1 468.6 (4) 0.47 (6) 0.45 (6) 0.84 (5) 0.31 (9) 1.15 (6) 0.98 (5) 1.1 (3) 2.1 (1)

E0'+D1 469.5 (4) 0.33 (4) 0.42 (8) 0.89 (5) 0.29 (9) 1.17 (7) 1.03 (6) 1.0 (3) 2.1 (1)

H'+D1 470.4 (5) 0.3 (1) 1.2 (3) 1.4 (3) 0.9 (4) 1.5 (4) 2.4 (5)

Shells+D1 474.9 (3) 0.88 (4) 0.29 (8) 1.17 (6) 1.03 (5) 1.0 (3) 2.0 (1)

**Table 2:** Galaxy model fitting results (see text). The columns give (1) the model, (2) the RMLR (obtained using the `ORBIT-DETE` background model) and the number of free model parameters (DOF), (3) the bulge scale length, (4) the bulge scale height, (5)-(8) the 511 keV photon luminosity of the model components, and (9)-(12) the total $4\pi$ integrated 511 keV line all-sky flux in each of the model components. The prime indicates model components for which the scaling parameters were adjusted by the fit. The figures in parenthesis quoted in Cols. (5)-(12) indicate $1\sigma$ uncertainties in the last digit.
Model	RMLR	R₀	z₀	$\mbox{$L_{511}$ }$ (10⁴³ ph s^-1)	511 keV line flux (10^-3 ph cm^-2 s^-1)
	(DOF)	(kpc)	(kpc)	bulge	disk	halo	total	bulge	disk	halo	total
G0	447.5 (1)	0.91	0.51	1.04 (3)			1.04 (3)	1.22 (4)			1.22 (4)
G1	445.7 (1)			0.97 (3)			0.97 (3)	1.19 (4)			1.19 (4)
G2	450.8 (1)			0.98 (3)			0.98 (3)	1.18 (3)			1.18 (3)
G3	462.2 (1)			0.98 (3)			0.98 (3)	1.18 (3)			1.18 (3)
E1	441.8 (1)			0.99 (4)			0.99 (4)	1.19 (4)			1.19 (4)
E2	453.1 (1)			1.01 (3)			1.01 (3)	1.19 (3)			1.19 (3)
E3	464.9 (1)			1.00 (3)			1.00 (3)	1.17 (3)			1.17 (3)
S $_{\rm F}$	459.0 (1)			0.96 (3)			0.96 (3)	1.19 (3)			1.19 (3)
E $_{\rm F}$	459.0 (1)			0.93 (2)			0.93 (2)	1.19 (3)			1.19 (3)
P $_{\rm F}$	456.5 (1)			0.94 (3)			0.94 (3)	1.16 (3)			1.16 (3)
S $_{\rm PR}$	456.3 (1)			0.94 (2)			0.94 (2)	1.22 (3)			1.22 (3)
G0'	462.5 (3)	0.52 (6)	0.45 (5)	0.94 (4)			0.94 (4)	1.09 (4)			1.09 (4)
E0'	464.2 (3)	0.37 (5)	0.42 (7)	0.98 (5)			0.98 (5)	1.15 (5)			1.15 (5)
H'	468.4 (4)					1.6 (3)	1.6 (3)			2.2 (4)	2.2 (4)
Shells	469.0 (2)			0.97 (3)			0.97 (3)	1.13 (3)			1.13 (3)
E3+D0	466.3 (2)			0.95 (3)	0.11 (5)		1.05 (4)	1.11 (4)	0.4 (2)		1.53 (5)
G0'+D0	465.2 (4)	0.48 (6)	0.46 (6)	0.87 (4)	0.15 (5)		1.03 (5)	1.01 (5)	0.6 (2)		1.61 (7)
E0'+D0	466.2 (4)	0.34 (4)	0.44 (8)	0.92 (5)	0.14 (5)		1.06 (5)	1.07 (6)	0.5 (2)		1.61 (8)
H'+D0	468.2 (5)				0.09 (8)	1.2 (3)	1.3 (3)		0.4 (3)	1.6 (5)	2.1 (5)
Shells+D0	472.2 (3)			0.91 (4)	0.15 (5)		1.05 (4)	1.05 (4)	0.6 (2)		1.62 (6)
E3+D1	468.8 (2)			0.93 (4)	0.23 (8)		1.15 (6)	1.09 (5)	0.8 (3)		1.90 (9)
G0'+D1	468.6 (4)	0.47 (6)	0.45 (6)	0.84 (5)	0.31 (9)		1.15 (6)	0.98 (5)	1.1 (3)		2.1 (1)
E0'+D1	469.5 (4)	0.33 (4)	0.42 (8)	0.89 (5)	0.29 (9)		1.17 (7)	1.03 (6)	1.0 (3)		2.1 (1)
H'+D1	470.4 (5)				0.3 (1)	1.2 (3)	1.4 (3)		0.9 (4)	1.5 (4)	2.4 (5)
Shells+D1	474.9 (3)			0.88 (4)	0.29 (8)		1.17 (6)	1.03 (5)	1.0 (3)		2.0 (1)

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data preparation
	3 Background modelling
	4 Results
	5 Discussion
	6 Conclusions
	Appendix A: Summary of galactic density profiles
	References