Table 2.
Classification criteria for simulated and observed galaxy samples.
| TNG100 simulations | |||
|---|---|---|---|
| SubhaloFlag=True; N⋆ > 200; NDM > 200 | |||
| Class | Selection criteria | Snapshots | Number |
| nETGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; log sSFR × yr−1 < −11; log σ/km s−1 > 1.9 and log M⋆/M⊙ > 10.1 | z = 0.00 − 0.10 | 70 859 |
| dETGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; log sSFR × yr−1 < −11; log σ/km s−1 < 1.9 and log M⋆/M⊙ < 10.1 | z = 0.00 − 0.10 | 21 416 |
| LTGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; log sSFR × yr−1 > −11 | z = 0.00 − 0.10 | 247 229 |
| TNG_all | nETGs+dETGs+LTGs | z = 0.00 − 0.10 | 339 504 |
| Observations | |||
| Class | Selection criteria | Redshifts range | Number |
| SPIDER/nETGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; Mtot(r1/2) > M⋆(r1/2); log σ/km s−1 > 1.9 and log M⋆/M⊙ > 10.1 | z = 0.05 − 0.095 | 3592 |
| DynPoP/nETGs | as SPIDER/nETGs + Qual ≥ 1 and (DynPop_E or DynPop_S0) | z = 0.01 − 0.10 | 1271 |
| DynPop/LTGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; Mtot(r1/2) > M⋆(r1/2); Qual ≥ 1 and DynPop_S | z = 0.01 − 0.10 | 2846 |
| Fornax/dETGs | r1/2 > 2Rp; log M⋆/M⊙ > 8.3; Mtot(r1/2) > M⋆(r1/2); log σ/km s−1 < 1.9 and log M⋆/M⊙ < 10.1 | z = 0.00 | 9+6 |
| Where we have defined (see text): | |||
| DynPop_E | (PLTG < 0.5) and (T-Type < 0) and (PS0 < 0.5) and (VC = 1) and (VF = 0) | ||
| DynPop_S0 | (PLTG < 0.5) and (T-Type < 0) and (PS0 > 0.5) and (VC = 2) and (VF = 0) | ||
| DynPop_S | (PLTG < 0.5) and (T-Type > 0) and (VC = 3) and (VF = 0) | ||
Notes. The Plummer radius is Rp = 0.74 kpc as mentioned in Sect. 2.2. For the observed dwarf sample (SAMI-Fornax) we add a more relaxed selection (r1/2 > 1 kpc) for the size to enlarge the predictive sample, but use this as secondary test sample (1 kpc < r1/2 < 2Rp).
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.