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The 69<i>μ</i>m forsterite band in spectra of protoplanetary disks. Results from the<i>Herschel</i>DIGIT programme
Context: We have analysed Herschel-PACS spectra of 32 circumstellar disks around Herbig Ae/Be and T-Tauri stars obtained within the Herschel key programme DIGIT. In this paper we focus on the 69mu emission band of the crystalline silicate forsterite. Aims: This work provides an overview of the 69mu forsterite bands in …