A&A 543, A65 (2012) Astronomy DOI: 10.1051/0004-6361/201218836 & c ESO 2012 Astrophysics A spectral line survey of the starless and proto-stellar cores detected by BLAST toward the Vela-D molecular cloud, J. L. Morales Ortiz1,3,L.Olmi2,3, M. Burton4,M.DeLuca5, D. Elia6, T. Giannini7,D.Lorenzetti7, F. Massi2, and F. Strafella8 1 UJF-Grenoble 1 / CNRS-INSU, Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) UMR 5274, 38041 Grenoble, France e-mail:
[email protected] 2 Osservatorio Astrofisico di Arcetri – INAF, Largo E. Fermi 5, 50125 Firenze, Italy 3 University of Puerto Rico, Rio Piedras Campus, Physics Department, Box 23343, UPR station, San Juan, Puerto Rico, USA 4 School of Physics, University of New South Wales, Sydney NSW 2052, Australia 5 LERMA-LRA, UMR 8112 du CNRS, Observatoire de Paris, École Normale Supérieure, UPMC & UCP, 24 rue Lhomond, 75231 Paris Cedex 05, France 6 Istituto di Fisica dello Spazio Interplanetario – INAF, via Fosso del Cavaliere 100, 00133 Roma, Italy 7 Osservatorio Astronomico di Roma – INAF, via Frascati 33, 00040 Monteporzio Catone, Roma, Italy 8 Dipartimento di Fisica, Universitá del Salento, CP 193, 73100 Lecce, Italy Received 18 January 2012 / Accepted 23 April 2012 ABSTRACT Context. Starless cores represent a very early stage of the star formation process, before collapse results in the formation of a central protostar or a multiple system of protostars. Aims. We use spectral line observations of a sample of cold dust cores, previously detected with the BLAST telescope in the Vela-D molecular cloud, to perform a more accurate physical and kinematical analysis of the sources.