Ultraviolet and visible variability of the coma of Comet Levy (1990c)

Details Ultraviolet and visible variability of the coma of Comet Levy (1990c) Ultraviolet and visible variability of the coma of Comet Levy (1990c)

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...95...65f&link_type=abstract

Icarus (ISSN 0019-1035), vol. 95, Jan. 1992, p. 65-72.

Astronomy and Astrophysics

Astronomy

31

Astronomical Photometry, Comet Heads, Light Emission, Okazaki-Levy-Rudenko Comet, Ultraviolet Radiation, Iue, Light Curve, Spaceborne Astronomy, Ultraviolet Astronomy

Scientific paper

A visible lightcurve of Comet Levy obtained with the IUE Fine Error Sensor has revealed short-term coma variability. A production-rate source function is derivable from these data which implies a nucleus exhibiting hemispherically asymmetric activity. The ratio of gas-to-dust-production rates is also noted to exhibit asymmetry. The low dust-outflow velocity derived from observations, at about 200 m/sec, indicates a distribution that is rich in large, 3-10 micron particles.

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