Photometric Predictions based on E-MILES SEDs
Here we provide links to different photometric predictions generated by the Vazdekis et al. (2010) code based on the E-MILES SEDs. The following predictions are provided for E-MILES SSPs covering a large range of ages, metallicities and IMF types and slopes:
- Magnitudes
- Mass-to-light ratios
- Masses
The following filter systems are used for the photometric predictions described above:
- U,B,V,J,H,K (Johnson)
- R,I (Cousin)
- u, g, r, i, z (SDSS)
- ACS/WFC and WFPC2 (HST)
- 3.6µm, 4.5µm (Spitzer)
- NUV (GALEX)
The appropriate references for these predictions are Vazdekis et al. (2012), Ricciardelli et al. (2012) and Vazdekis et al. (2016).
Magnitudes, colours and mass-to-light ratios are provided for the E-MILES SSPs specified in the table below. For computing the mass-to-light ratios we take into account the remnants and the mass loss during the latest phases of the stellar evolution. It is also important to note that the adopted lower and upper mass cutoffs for all the IMFs are 0.1 and 100 Mo respectively (see Notes), and the faintest star is 0.1 Mo.
When we adopt the Vega system we assume Vega magnitudes equal to zero in all wave-bands. The reference Vega spectrum is ftp://ftp.stsci.edu/cdbs/
For the HST, we have computed predictions for some of the most widely used set of filters (i.e. the ones used in the GOODS, CANDELS and GEMS surveys).
These model predictions for these filters can be obtained below. Magnitudes in other filters can be calculated through our webtools
Magnitudes, colours and mass-to-light ratios in SDSS filters (AB system)
Isochrone |
Unimodal |
Bimodal |
Kroupa Universal |
Kroupa Revised |
Chabrier |
Padova+00 |
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BaSTI |
Each file contain the following columns: (1) Model name [IMF slope, [M/H], Age], (2) M(*+remn), (3) u_SDSS, (4) g_SDSS, (5) r_SDSS, (6) i_SDSS, (7) z_SDSS, (8) M/L(u_SDSS), (9) M/L(g_SDSS), (10) M/L(r_SDSS), (11) M/L(i_SDSS), (12) M/L(z_SDSS).
We have adopted the AB system for the SDSS filters, assuming solar magnitudes magnitudes: (u, g, r, i,z) = (6.55,5.12,4.68,4.57,4.54) mag, as explained here. Masses in mass-to-light ratios include the mass of the remnants from stellar evolution. Filter responses use can be found here.
Magnitudes, colours and mass-to-light ratios in Johnson/Cousin filters (Vega system)
Isochrone |
Unimodal |
Bimodal |
Kroupa Universal |
Kroupa Revised |
Chabrier |
Padova+00 |
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BaSTI |
Each file contain the following columns: (1) Model name [IMF slope, [M/H], Age], (2) M(*+remn), (3) U_Buser, (4) B2_Buser, (5) B3_Buser, (6) V_Buser, (7) R_Cousins, (8) I_Cousins, (9) J_Johnson, (10) H_Bessell, (11) K_Johnson, (12) M/L(U_Buser), (13) M/L(B2_Buser), (14) M/L(B3_Buser), (15) M/L(V_Buser), (16) M/L(R_Cousins), (17) M/L(I_Cousins), (18) M/L(J_Johnson), (19) M/L(H_Bessell), (20) M/L(K_Johnson).
We have adopted the Vega system as described above. Solar magnitudes used are: (U, B, V, R, I, J, K)=(5.600, 5.441, 4.820, 4.459, 4.148, 3.711, 3.392, 3.334) mag. Filter responses use can be found here.
Magnitudes, colours and mass-to-light ratios in HST filters (Vega system)
Isochrone |
Unimodal |
Bimodal |
Kroupa Universal |
Kroupa Revised |
Chabrier |
Padova+00 |
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BaSTI |
Each file contain the following columns: (1) Model name [IMF slope, [M/H], Age], (2) M(*+remn), (3) F275_wfc3, (4) F336_WFC3, (5) F435W_WFC, (6) F475W_WFC, (7) F555W_WFC, (8) F606W_WFC, (9) F775W_WFC, (10) F502N_WFC, (11) F550M_WFC, (12) F658N_WFC, (13) F660N_WFC, (14) F439W_WFPC2, (15) F555W_WFPC2, (16) F675W_WFPC2
We have adopted the Vega system as described above. Filter responses use can be found here.
Magnitudes, colours and mass-to-light ratios in Spitzer filters (Vega system)
Isochrone |
Unimodal |
Bimodal |
Kroupa Universal |
Kroupa Revised |
Chabrier |
Padova+00 |
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BaSTI |
Each file contain the following columns: (1) Model name [IMF slope, [M/H], Age], (2) M(*+remn), (3) [3.6]_Spitzer, (4) [4.5]_Spitzer, (5) M/L([3.6]_Spitzer), (6) M/L([4.5]_Spitzer).
We have adopted the Vega system as described above. Sun magnitudes used here are: (3.6, 4.5) = (3.240,3.270). Filter responses use can be found here.
Magnitudes, colours and mass-to-light ratios in GALEX NUV filter (Vega system)
Isochrone |
Unimodal |
Bimodal |
Kroupa Universal |
Kroupa Revised |
Chabrier |
Padova+00 |
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BaSTI |
Each file contain the following columns: (1) Model name [IMF slope, [M/H], Age], (2) M(*+remn), (3) GALEX_NUV, (4) M/L(GALEX_NUV).
We have adopted the AB system and a Sun magnitude for the NUV filter of 10.18 mag. Filter responses use can be found here.