BETOCS

(BayEsian Tools for Observational

Cosmology using SNe Ia)

BETOCS (BayEsian Tools for Observational Cosmology using SNe Ia) is aimed to help the theoretical physicist community investigate cosmological models using type Ia supernovae (SNe Ia) observational data.
BETOCS is a freeware and open source tool written in the Mathematica language. The Mathematica notebooks of BETOCS contain documentation, source code and practical examples with textual and graphical outputs.

Description

Current features of BETOCS (v1.20):
Each BETOCS notebook contains :

Download

How to cite BETOCS

If you use BETOCS in your article, thesis, etc, please cite the BETOCS project :

"R. Colistete Jr. and R. Giostri, BayEsian Tools for Observational Cosmology using SNe Ia (BETOCS), available on the Internet site http://www.RobertoColistete.net/BETOCS, (2007)"

or in TeX format :

"\bibitem{betocs}  R. Colistete Jr. and R. Giostri, \textit{\textbf{B}ay\textbf{E}sian \textbf{T}ools for \textbf{O}bservational \textbf{C}osmology using \textbf{S}Ne Ia (\textbf{BETOCS})}, available on the Internet site http://www.RobertoColistete.net/BETOCS, (2007)".

You can also cite some of my articles (they are listed below among other articles) which detail the use of BETOCS applied to some cosmological models (LambdaCDM, Chaplygin Gas Model, etc).

I would be very grateful if you send us a email telling that you have used BETOCS in your work, with your opinion, suggestion of new features, etc. This feedback is important for future releases of BETOCS.

Pratical uses of BETOCS : articles, etc
  1. R. Colistete Jr., J.C. Fabris, J. Tossa and W. Zimdahl, "Bulk Viscous Cosmology", Phys. Rev. D76, 103516 (2007), arXiv:0706.4086;
  2. E. E. O. Ishida, R. R. R. Reis, A. V. Toribio, I. Waga, "When did cosmic acceleration start ? How fast was the transition?", Astroparticle Physics 28, 547 (2008), arXiv:0706.0546;
  3. R. Colistete Jr. and R. Giostri, "BETOCS using the 157 gold SNe Ia Data : Hubble is not humble", astro-ph/0610916;
  4. F. Casarejos, J. C. Fabris, S. V. B. Gonçalves and J. F. Villas da Rocha, "Constraining double component dark energy model using type Ia supernovae data", astro-ph/0606171;
  5. R. Colistete Jr. and J. C. Fabris, "Bayesian Analysis of the (Generalized) Chaplygin Gas and Cosmological Constant Models using the 157 gold SNe Ia Data", Class. Quantum Grav. 22, 2813 (2005), astro-ph/0501519;
  6. R. Colistete Jr., J. C. Fabris and S. V. B. Gonçalves, "Bayesian Statistics and Parameter Constraints on the Generalized Chaplygin Gas Model using SNe Ia Data", Int. J. Mod. Phys. D14, 775 (2005), astro-ph/0409245;
  7. R. Colistete Jr., J. C. Fabris, S. V. B. Gonçalves and P. E. de Souza, "Bayesian Analysis of the Chaplygin Gas and Cosmological Constant Models using the SNe Ia Data", Int. J. Mod. Phys. D13, 669 (2004), astro-ph/0303338.

Screenshots

3-dimensional PDF for the Gen. Chaplygin gas model 3-dimensional PDF for the Gen. Chaplygin gas model 3-dimensional PDF for the Gen. Chaplygin gas model 3-dimensional PDF for the Gen. Chaplygin gas model
2-dimensional PDF of Alpha x A for Gen. Chaplygin gas model 1-dimensional PDF of Alpha for Gen. Chaplygin gas model 1-dimensional PDF of A for Gen. Chaplygin gas model 1-dimensional PDF of t_0 for Gen. Chaplygin gas model


Acknowledgements

About BETOCS
BETOCS version 1.20 for Mathematica v4/5.

Copyright © 2006-7 Roberto Colistete Jr & Ramón Giostri.

BETOCS is a freeware and open source software. It is supplied as is and comes with no warranty. The author accepts no liability for any data that may be lost using this program.

For questions, suggestions and comments, please use the form :
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Last updates (dd/mm/yy) : 23/09, 26/09, 27/10, 31/10, 02/11/06, 22/10, 28/12/2007.

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