Collisions between the nucleus of Comet Halley and dust from its own meteoroid stream

Details Collisions between the nucleus of Comet Halley and dust from its own meteoroid stream Collisions between the nucleus of Comet Halley and dust from its own meteoroid stream

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.260...43w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 260, no. 1, p. 43-48.

Astronomy and Astrophysics

Astronomy

23

Comet Nuclei, Halley'S Comet, Interplanetary Medium, Meteoroid Showers, Astronomical Models, Impact Damage, Orbital Mechanics, Solar System, Comets, Halley, Meteoroids, Comet Nuclei, Dust, Collisions, Velocity, Debris, Surface, Eta Aquarids, Orionids, Orbits, Impact Effects, Mass, Size, Distribution, Flux, Erosion, Gardening, Resurfacing

Scientific paper

As Comet Halley orbits the Sun it continuously ploughs through its own meteoroid stream. We show that the collision velocity between the stream meteoroids and the surface of the cometary nucleus is far from negligible, the mean value being about 4.0 km/s. Half of the collisions occur when the comet is close to perihelion. The total amount of its own dust hit by Comet Halley per orbit is around 17 g, and this damages a mere 8 x 10 exp -8 percent of the surface of the nucleus.

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