This form allows one to create arbitrary mixtures of single-burst populations. The models are those of

- Output options:
- Show colors, magnitudes, spectral indices, SBF magnitudes
- Also add low-res integrated flux (1221 flux points)
- Also add
0.5 A-resolution synthetic integrated flux, 3000-10000 A (14000 flux points)
- Model flavor:
- Default models: Salpeter (2.35) IMF between 0.1 and 100 Mo, Y=0.228 + 2.7Z, horizontal branch morphology shifting as a function of metallicity, low-resolution fluxes used to calculate colors.
- IMF exponent up 0.5 (2.85)
- IMF exponent up 1.0 (3.35)
- IMF exponent down 0.5 (1.85)
- IMF exponent down 1.0 (1.35)
- Miller & Scalo (1979) piecewise IMF.
- Shallow Y: Y = 0.228 + 6Z below Z=0.0077; Y = 0.274 above that value
- Min Y: Y = 0.20 below [Fe/H] = -0.5; Y = 0.25 above [Fe/H] = -0.25
- Max Y: Y = 0.30 below [Fe/H] = -0.5; Y = 0.35 above [Fe/H] = -0.25
- No horizontal branch (clump) or later stages
- Vanilla, but colors computed with a more recent, high-res set of synthetic fluxes.

- Go to:
- Claus Leitherer's collection of population synthesis links plus models.
- Guy Worthey page.
- © 1996-2002. Guy Worthey.