A radar study of Comet IRAS-Araki-Alcock 1983d

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

72

Comets, Iras-Araki-Alcock Comet, Radar Astronomy, Albedo, Backscattering, Circular Polarization, Power Spectra

Scientific paper

Radar echoes from Comet IRAS-Araki-Alcock at wavelengths 3.54 and 12.9 cm indicate that the comet's nucleus is very rough on a scale larger than the radar wavelengths; however, the low polarization ratio (25 percent at 3.54 cm) indicates that the scattering is not dominated by multiple reflections, internal reflections, or large abundances of sharp edges, cracks, and pits. The shape of the nucleus probably departs greatly from a sphere with average radii near 3-4 km. The nucleus does not appear to look significantly different from a number of Apollo and Amor asteroids except that: (1) there is a suggestion that minor structure moves rapidly across the spectra, and (2) the debris not gravitationally bound to the comet was detected, and contributes 25 percent of the total radar cross section at the 12.9-cm wavelength. Other considerations suggest that the pole was at least 45 deg away from the line of sight on two days of observation, and that the rotation period is approximately 1-2 days.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A radar study of Comet IRAS-Araki-Alcock 1983d does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A radar study of Comet IRAS-Araki-Alcock 1983d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A radar study of Comet IRAS-Araki-Alcock 1983d will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1751050

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.