Institution: | (1) Astrophysics Division, Space Science Dept. of ESA, Villafranca, ISO Science Operations Centre, P.O. Box 50727, 28080 Madrid, Spain;(2) Max-Planck Institut Für Astrophysik, Garching, Germany;(3) Astronomisch Instituut, Univ. of Amsterdam, The Netherlands;(4) Sterrewacht Leiden, The Netherlands;(5) European Southern Observatory, Garching, Germany;(6) Institut d'Astrophysique de Paris, France |