Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10701472 | Icarus | 2012 | 32 Pages |
Abstract
⺠Mid-IR spectra from 5.2 to 38 μm using the Spitzer/IRS of 28 asteroids. ⺠Analyzed using STM and a thermophysical model (TPM) if 3D-shape is available. ⺠Large (Deq > 130 km) binary asteroids are covered with a thick layer of thermally insulating regolith. ⺠Smaller (Deq < 17 km) asteroids have their surfaces are coarser, and therefore younger. ⺠Their average densities vary from 0.7-1.7 g/cm3 (P-, C-type) to â¼2 g/cm3 (S-type) and 3.2 g/cm3 (M-type).
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
F. Marchis, J.E. Enriquez, J.P. Emery, M. Mueller, M. Baek, J. Pollock, M. Assafin, R. Vieira Martins, J. Berthier, F. Vachier, D.P. Cruikshank, L.F. Lim, D.E. Reichart, K.M. Ivarsen, J.B. Haislip, A.P. LaCluyze,