Median values of the masses of different components within galaxies in the mass range 8 < log(M⋆/M⊙) < 9, measured within both the central 2 kpc and the virial radius, for galaxies with cuspy (top row) and cored (bottom row) profiles, respectively. The stellar, DM and gas masses are consistent between both profile types, both within 2 kpc and the whole halo. However, the amount of star-forming gas is elevated by an order of magnitude in cored galaxies, indicating that star formation and the abundance of dense, cold gas plays a key role in the formation of cores.
Profile . | Log stellar mass [M⊙] . | Log DM mass [M⊙] . | Log gas mass [M⊙] . | Log SF gas mass [M⊙] . |
---|---|---|---|---|
. | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . |
Cusp | 7.64 | 8.27 | 8.58 | 10.31 | 8.44 | 9.29 | 6.98 | 6.98 |
Core | 7.80 | 8.56 | 8.57 | 10.37 | 8.47 | 9.41 | 7.83 | 7.97 |
Profile . | Log stellar mass [M⊙] . | Log DM mass [M⊙] . | Log gas mass [M⊙] . | Log SF gas mass [M⊙] . |
---|---|---|---|---|
. | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . |
Cusp | 7.64 | 8.27 | 8.58 | 10.31 | 8.44 | 9.29 | 6.98 | 6.98 |
Core | 7.80 | 8.56 | 8.57 | 10.37 | 8.47 | 9.41 | 7.83 | 7.97 |
Median values of the masses of different components within galaxies in the mass range 8 < log(M⋆/M⊙) < 9, measured within both the central 2 kpc and the virial radius, for galaxies with cuspy (top row) and cored (bottom row) profiles, respectively. The stellar, DM and gas masses are consistent between both profile types, both within 2 kpc and the whole halo. However, the amount of star-forming gas is elevated by an order of magnitude in cored galaxies, indicating that star formation and the abundance of dense, cold gas plays a key role in the formation of cores.
Profile . | Log stellar mass [M⊙] . | Log DM mass [M⊙] . | Log gas mass [M⊙] . | Log SF gas mass [M⊙] . |
---|---|---|---|---|
. | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . |
Cusp | 7.64 | 8.27 | 8.58 | 10.31 | 8.44 | 9.29 | 6.98 | 6.98 |
Core | 7.80 | 8.56 | 8.57 | 10.37 | 8.47 | 9.41 | 7.83 | 7.97 |
Profile . | Log stellar mass [M⊙] . | Log DM mass [M⊙] . | Log gas mass [M⊙] . | Log SF gas mass [M⊙] . |
---|---|---|---|---|
. | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . | 2 kpc | Total . |
Cusp | 7.64 | 8.27 | 8.58 | 10.31 | 8.44 | 9.29 | 6.98 | 6.98 |
Core | 7.80 | 8.56 | 8.57 | 10.37 | 8.47 | 9.41 | 7.83 | 7.97 |
This PDF is available to Subscribers Only
View Article Abstract & Purchase OptionsFor full access to this pdf, sign in to an existing account, or purchase an annual subscription.