Stellar population synthesis model predictions

The stellar population synthesis model predictions using the NGSL, MILES, Indo-US, CaT and IRTF stellar libraries (MILES and CaT are available here), and are based on the code presented in Vazdekis et al. (2010). The spectra are stored in air wavelengths.

The current version of the models is: 11.0

UNITS:

The total mass of the SSP is 1Mo. The SSP spectra are given in units of Lλ/ Lo Mo-1Å-1.

SSP models coverage (Padova+00 isochrone)
Initial Mass Function (IMF) Metallicity [M/H] (Z)
 Age (Gyr) [α/Fe]
Unimodal (UN) with logarithmic slope (Γ)

0.3,0.5,0.8,1.3,1.5,1.8,
2.0,2.3,2.5,2.8,3.0,3.3,3.5
Bimodal (BI) with massive stars segment logarithmic slope (Γb)

0.3,0.5,0.8,1.3,1.5,1.8,
2.0,2.3,2.5,2.8,3.0,3.3,3.5
Kroupa Universal (KU) with massive stars segment logarithmic slope
1.30
Kroupa Revised (KB) with massive stars segment logarithmic slope
1.30
Chabrier (CH) with massive stars segment logarithmic slope
1.30
-2.32 (0.0001)
-1.71 (0.0004)
-1.31 (0.001)
-0.71 (0.004)
-0.40 (0.008)
0.00 (0.019)
+0.22 (0.03)
0.063, 0.071, 0.079, 0.089, 0.10, 0.11, 0.13, 0.14, 0.16, 0.18, 0.20, 0.22, 0.25, 0.28, 0.32, 0.35, 0.40, 0.45, 0.50, 0.56, 0.63, 0.71, 0.79, 0.89, 1.00, 1.12, 1.26, 1.41, 1.58, 1.78, 2.00, 2.24, 2.51, 2.82, 3.16, 3.55, 3.98, 4.47, 5.01, 5.62, 6.31, 7.08, 7.94, 8.91, 10.00, 11.22, 12.59, 14.13 15.85, 17.78
base

 

SSP models coverage (BaSTI isochrones)
Initial Mass Function (IMF) Metallicity [M/H] (Z)
 Age (Gyr) [α/Fe]
Unimodal (UN) with logarithmic slope (Γ)

0.3,0.5,0.8,1.3,1.5,1.8,
2.0,2.3,2.5,2.8,3.0,3.3,3.5
Bimodal (BI) with massive stars segment logarithmic slope (Γb)

0.3,0.5,0.8,1.3,1.5,1.8,
2.0,2.3,2.5,2.8,3.0,3.3,3.5
Kroupa Universal (KU) with massive stars segment logarithmic slope
1.30
Kroupa Revised (KB) with massive stars segment logarithmic slope
1.30
Chabrier (CH) with massive stars segment logarithmic slope
1.30
-2.27 (0.0001)
-1.79 (0.0003)
-1.49 (0.0006)
-1.26 (0.001)
-0.96 (0.002)
-0.66 (0.004)
-0.35 (0.008)
-0.25 (0.010)
+0.06 (0.0198)
+0.15 (0.024)
+0.26 (0.030)
+0.40 (0.040)
00.03, 00.04, 00.05, 00.06, 00.07, 00.08, 00.09, 00.10, 00.15, 00.20, 00.25, 00.30, 00.35, 00.40, 00.45, 00.50, 00.60, 00.70, 00.80, 00.90, 01.00, 01.25, 01.50, 01.75, 02.00, 02.25, 02.50, 02.75, 03.00, 03.25, 03.50, 03.75, 04.00, 04.50, 05.00, 05.50, 06.00, 06.50, 07.00, 07.50, 08.00, 08.50, 09.00, 09.50, 10.00, 10.50, 11.00, 11.50, 12.00, 12.50, 13.00, 13.50, 14.00
base
+0.00
+0.40