... K a p e r a b f g b h i a a a b c d e Astronomical I n s t i t u t e 'A n t o n P a n n ek o ek ', U n iv e r s ity o f A m s te r d a m , K ruislaan 4 0 3 , 1098SJ A m s te r d a m , N e th e rla n d s Observatoire M i d i - P y r e n e e s , 14 A venue E douard B e lin , 31 4 00 T o u lo u se, France c Department of A stro n o m y, U n iv e r s ity of T o ro n to at M ississa u g a , M ississauga, O n ta rio , C a n a d a L5L 1C6 d 36 rue des B a t t i e u x , ...