High priority will be given to proposals aimed at exploiting the unique instrumental and operational capabilities of BeppoSAX, which will allow studies of key astrophysical objects and phenomena that cannot be done with any other orbiting X- or Gamma-ray observatory during the AO5 period. In particular:
1. Programs aimed at exploiting the operational flexibility of the mission in performing TOO observations (see next section on TOO programs), triggered either by GRBM and/or WFC or by other astronomical instruments.
2. Program aimed at studying the broad band spectral behaviour of sources, with particular regard to the high energy range (E10 keV) and/or to sources which emit the bulk of their energy beyond 10 keV. While the main scientific goal of a proposal shall be achieved with BeppoSAX itself, the added value of a combined observation by BeppoSAX with Chandra or Newton-XMM in providing the highest quality spectral data from 0.1 to 200 kev will be favourably considered vis a vis with the limitation on the total time than can be spent on time critical observations (see section 1.1.1).
An extended account of the scientific objectives specific of BeppoSAX which can serve as guidelines for the AO5 program can be found in the "Scientific Justification for BeppoSAX AO5 extension" at /bepposax/scijust.html or http://www.ias.rm.cnr.it/sax/AO5/scijust1.html