Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria

Details Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.3506k&link_type=abstract

American Astronomical Society, DPS meeting #39, #35.06; Bulletin of the American Astronomical Society, Vol. 39, p.482

Other

Scientific paper

The radar observations of 44 Nysa and 434 Hungaria are the first for E-class main-belt asteroids (MBAs). These asteroids have the highest measured polarization ratios of MBAs to date: Nysa, μc = 0.50 ± 0.02 and Hungaria, μc = 0.8 ± 0.1. They also display high radar albedos relative to other recorded MBAs; 0.19 ± 0.06 for Nysa and 0.22 ± 0.06 for Hungaria, which suggest high surface bulk density (Magri et al. 2001). From our spectra, we model Nysa as an ellipsoid of dimension 113 x 67 x 65 km (±15%) which gives an effective diameter Deff = 79 ± 10 km. These values are consistent with previous estimates. In addition, we find Nysa's echo waveforms are not consistent with a bifurcated object (Kaasalainen et al. 2002). Analysis of Hungaria's bandwidths allow us to place a constraint on its maximum diameter, Dmax ≥ 11 km, which is also consistent with previous size estimates. All observations were made at the Arecibo Observatory with the support of NSF grants.
References
Kaasalainen, M., Torppa, J., Piironen, J. 2002. Binary structures among large asteroids. Astron. & Astrophys. 383, L19-L22.
Magri, C., Consolmagno, G.J., Ostro, S.J., Benner, L.A.M., Beeney, B.R. 2001. Radar constraints on asteroid regolith properties using 433 Eros as ground truth. Meteor. Planet. Sci. 36, 1697-1709.

Affiliated with

Also associated with

No associations

Rating

Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria 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 Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radar Observations of E-Class Asteroids 44 Nysa and 434 Hungaria will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1066300