Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasj...49l..31i&link_type=abstract
Publications of the Astronomical Society of Japan, v.49, p.L31-L34.
Astronomy and Astrophysics
Astronomy
7
Asteroids, Near Earth Asteroids, Polarimetry, Solar System
Scientific paper
Our visible polarimetry of asteroid 4179 Toutatis during the apparition of 1996 has revealed the existence of a maximum polarization Pmax of (7.0+/-0.2)% at a phase angle (Sun--asteroid--observer angle) alpha_max of 107(deg}+/-10({deg)) at an effective wavelength of 0.53 mu m. This is the second significant report of P_max and {alpha_max } for the asteroids; the first one for 1685 Toro by Kiselev et al. (1990, AAA51.098.084) has large uncertainties. A comparison of our values of P_max and {alpha_max } with those of laboratory measurements reported by Bowell et al. (1972, Proc. Lunar Sci. Conf.) as well as Shkuratov and Opanasenko (1992, AAA56.094.027) suggests that the Toutatis' surface is covered with a material having similar polarimetric properties to those of lunar fines with a size of less than 80 mu m. Furthermore, our multi-channel polarimetry has confirmed a decrease in the polarization with increasing wavelength.
Hirata Ryuko
Ishiguro Masateru
Kogachi Motofumi
Mukai Tadashi
Nakamura Ryosuke
No associations
LandOfFree
Maximum Visible Polarization of 4179 Toutatis in the Apparition of 1996 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 Maximum Visible Polarization of 4179 Toutatis in the Apparition of 1996, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximum Visible Polarization of 4179 Toutatis in the Apparition of 1996 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1157547