Affiliation: | (1) SRON Laboratory for Space Research Groningen Landleven 12, 9700 AV Groningen, P.O.Box 800, The Netherlands;(2) Institut d'Astrophysique de Paris, France;(3) Astronomical Institute Anton Pannekoek, University of Amsterdam, The Netherlands;(4) Bontekoe Data Consultancy, J.Bergmanstraat 3, 2221 BM Katwijk, The Netherlands;(5) Dept. of Astronomy and Earth Sciences, Tokyo Gakugei University, Japan |