A Bag of Stellar Tracks and Isochrones...

Population Synthesis Program is a web interface written in PERL language by Dr. D. Cordier from ENSCR (France) in collaboration with Dr. S. Cassisi from Teramo Observatory (Italy). This program uses evolutionary tracks from Pietrinferni A., Cassisi S., Salaris M. and Castelli F. (2004, ApJ - vol. 612, 168), taking into account various parameters like photometric errors, spatial depth of the simulated stellar population, etc. Results are a synthetic population of stars, coming as it would be observed. The user receives a notification by e-mail when computations are completed. This Web Tool is not a simple applet and as it is server side based, it is robust and fast.

IMPORTANT INFORMATION FOR ALL BASTI USERS, click here




User Id:
Photometric error
No error
Gaussian error with the mean photometric error:
(in mag)
User Specified error law table
Number of values: (Max. 200)
Mean spectroscopic error
(in dex)
Colour excess E(B-V)
 Total spatial depth of the population
Distance modulus
Fraction of unresolved binaries
(e.g. 1/10 --> 0.1) 		Minimum mass ratio for binary systems
Scale factor for SFR
(Max. 8 digits integer) 		Mass range
Default mass range (0.1-120 Msun)
User-specified lower mass limit:
(solar masses)
Initial Mass Function

IMF type
Single power law
Kroupa, Tout, Gilmore (1993)

IMF exponent (in case of single power law)

 Stellar Formation History
Fixed Stellar Formation Histories (SFH)

NGC6822 (*) Milky Way bulge
SMC (*) Sextans A
LMC (bar field) LGS3
Local disk (*) (global SFH )

User Specified SFH
Number of age values: (max. 200)

Search for variable stars
yes no 		Selected set of isochrones

Heavy Elements Mixture
Scaled to solar mixture
Alpha enhanced mixture

Mass loss
η=0.2 η=0.4

Extra core mixing
Standard (No overshooting)
Overshooting

Random numbers generating
The random number generator is automatically initialized through the Web taking a seed from http://www.random.org (recommended option)
The random number generator is initialized with seeds provided by the user:

Seed 1:

Seed 2: