The code SUMA:               coupled effect of photoionization and shocks                           Marcella Contini1 and Sueli M. Viegas2  1School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel, email: contini@post.tau.ac.il 2Instituto de Astronomia, Geofísica e Ciências Atmosféricas, University of São Paulo, Brazil, e-mail: viegas@usp.br

                                                           Table of Contents

      1. Introduction

         2. Presentation of the code

            3. The input parameters: Input parameters depending on the shock; elemental abundances, nebula geometrical thickness

               4. Relevant issues: Slab width, compression equation, electronic temperature, lifetimes, dust, iterations

                        5. Applications to astrophysical environments:  AGN, Luminous infrared galaxies, Symbiotic stars

           References

Acknowledgments:The authors are grateful to Rodolfo Angeloni for promoting and participating  in the presentation of SUMA.