Free Access

Table 1

Adopted parameters of the two new Galactic mass models.

Parameters Model I Model II Model A&S

Mbulge 460.0 606.0
Mthin 1700.0 1600.0 3690.0
Mthick 1700.0 1700.0
Mhalo 6000.0 9000.0 4615.0
athin 5.3000 4.8000 5.3178
athick 2.6 2.0
ahalo 14.0 14.0 12.0
bbulge 0.3000 0.3873
bthin 0.25 0.25 0.25
bthick 0.8 0.8

Notes.Masses are in units of 2.32 × 107M, distances in units of kpc, following Allen & Santillan (1991). For comparison, the parameters of the Allen & Santillan (1991) model are also given. Both Models I and II are designed to have stellar discs with masses similar to the Allen & Santillan (1991) stellar disc, but with half of this total mass contained in a thick disc.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.