The Effect of Tidal Stripping on Composite Stellar Populations in Dwarf Spheroidal Galaxies

Table 1

Structural properties of the satellite models after its evolution for 𝑡=6(±0.3)  Gyr within the fixed Galactic potential. The first row in the table shows the initial values and subsequent rows show the present-day values for the experiments on Orb1–Orb4. 𝑅_𝑐 and 𝑅_𝑡 refer to the best-fitting King profile values to the surface density profile of the luminous components. The last 3 columns indicate the fraction of mass in each component that remains bound to the dwarf in the final configuration.

Orbit	𝑅𝑐 (kpc)	𝑅𝑡 (kpc)	𝑓𝐶1 (%)	𝑓𝐶2 (%)	𝑓DM (%)
Initial	0.11±0.01	2.2±0.1	100	100	100
Orb1	0.11±0.01	2.0±0.1	100	99	44
Orb2	0.11±0.01	1.9±0.1	100	88	5
Orb3	0.11±0.01	2.2±0.1	100	98	20
Orb4	0.11±0.01	1.0±0.1	87	20	3