Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes

Josef Ďurech (1) , Mikko Kaasalainen (2) , David Herald , David Dunham , Brad Timerson , Josef Hanuš (1) , Eric Frappa , John Talbot (3) , Tsutomu Hayamizu , Brian D. Warner (4) , Frederick Pilcher , Adrián Galád (5, 6)

1 Faculty of Mathematics and Physics [Praha/Prague]
2 Department of Mathematics [Tampere]
3 Occultation Section
4 Palmer Divide Observatory
5 Comenius University in Bratislava
6 Ondřejov Observatory of the Prague Astronomical Institute

► Asteroid sizes can be measured by observing occultations of stars by asteroids. ► We combine shape models of 44 asteroids with the available occultation data. ► We derive asteroid effective diameters. ► In many cases, we solve the ambiguity of the pole direction. ► Lightcurve inversion combined with occultations leads to unique physical models.

Mots clés: Asteroids; Occultations; Photometry

Domaines: Planète et Univers [physics]

Josef Ďurech, Mikko Kaasalainen, David Herald, David Dunham, Brad Timerson, et al.. Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes. Icarus, 2011, 214 (2), pp.652. ⟨10.1016/j.icarus.2011.03.016⟩. ⟨hal-00786870⟩