Author/Authors :
Kaasalainen، نويسنده , , Mikko and Pravec، نويسنده , , Petr and Krugly، نويسنده , , Yurij N. and ?arounov?، نويسنده , , Lenka and Torppa، نويسنده , , Johanna and Virtanen، نويسنده , , Jenni and Kaasalainen، نويسنده , , Sanna and Erikson، نويسنده , , Anders and Nathues، نويسنده , , Andreas and ?urech، نويسنده , , Josef and Wolf، نويسنده , , Marek and Lagerros، نويسنده , , Johan S.V. and Lindgren، نويسنده , , Mats and Lagerkvist، نويسنده , , Claes-Ingvar and Koff، نويسنده , , Robert and Davies، نويسنده , , John J. Mann، نويسنده , , Rita and Ku?nir?k، نويسنده , , Peter and Gaftonyuk، نويسنده , , Ninel M. and Shevchenko، نويسنده , , Vasilij G. and Chiorny، نويسنده , , Vasilij G. and Belskaya، نويسنده , , Irina N.، نويسنده ,
Abstract :
We present new observations and models of the shapes and rotational states of the eight near-Earth Asteroids (1580) Betulia, (1627) Ivar, (1980) Tezcatlipoca, (2100) Ra-Shalom, (3199) Nefertiti, (3908) Nyx, (4957) Brucemurray, and (5587) 1990 SB. We also outline some of their solar phase curves, corrected to common reference geometry with the models. Some of the targets may feature sizable global nonconvexities, but the observable solar phase angles were not sufficiently high for confirming these. None is likely to have a very densely cratered surface. We discuss the role of the intermediate topographic scale range in photometry, and surmise that this scale range is less important than large or small scale lengths.
