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A High-Velocity Component of Atomic Hydrogen in Comet Bennett (1970 II)
International Astronomical Union Colloquium
The Lyman alpha emission from Comet Bennett (1970II) was measured near perihelion (March 1970) by the University of Colorado ultraviolet photometer experiment on OGO-5 The spectrometer field of view of about 3° crossed the cometary hydrogen coma four times. The hydrogen coma was observed to extend more than 30 x 106 km in the antisolar direction.A model for the hydrogen density was developed which took the actual cometary motion and the gradients of the forces of gravitation and radiationdoi:10.1017/s0252921100500979 fatcat:7oychfjimzatlciadgnfluoaim