(1) Observatoire de Paris-Meudon, F-92195 Meudon, France;(2) Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA;(3) Institut für Planetenerkundung, DLR, Berlin, Germany
Abstract:
We present OH 18-cm observations of comet Hale-Bopp (C/1995 O1) at the Nançay radio telescope. On nucleus and offset position observations allowed us to obtain both OH production rates and quenching radii. The maximum OH production rate was reached around perihelion, at about1031 s-1.