GT1_epoleham_1: SPECHIS: SPIRE Spectral Line Surveys of HIFI-GT-KP Sources

We propose to obtain several SPIRE submm line surveys of the most significant star forming regions at the highest spectral resolution allowed by the SPIRE-FTS. A list of 27 sources currently being observed by us with HIFI and PACS in five different Guaranteed Programs is proposed. As a result of these complementary data, the most relevant sources in the galactic center (Sgr B2, Sgr A...) and galaxy disc (Orion, W49N...) would be observed with the 3 spectrometers on board Herschel, and analyzed and interpreted by the same teams. A unique spectral data set of these sources will thus be available for the general community with a great lasting value.