A non-axisymmetric potential for the Milky Way disk

Open Access

Table 1

Fixed parameters for the axisymmetric background density.

Disky density profiles

Component	Σ₀ (10³M_⊙ pc⁻²)	h_R (kpc)	h_z (kpc)

Stellar disk	1.19	2.4	0.30
Gas disk	0.07	4.8	0.13

Spheroidal density profiles

Component	ρ₀ (10⁻¹M_⊙ pc⁻³)	a (kpc)	r_s (kpc)	α	β	γ	q

Bulge	1.08	8.16	0.83	2.0	2.9	1.3	1.0
DM halo	4.56	−	0.65	0.50	0.0	0.0	0.8

Notes. The parameters were used to compute the background potential, following the definitions in Eqs. (1) and (2).

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