Bibcode
Campins, Humberto; de León, Julia; Morbidelli, Alessandro; Licandro, J.; Gayon-Markt, Julie; Delbo, Marco; Michel, Patrick
Bibliographical reference
The Astronomical Journal, Volume 146, Issue 2, article id. 26, 6 pp. (2013).
Advertised on:
8
2013
Citations
47
Refereed citations
46
Description
Near-Earth asteroid (162173) 1999 JU3 (henceforth
JU3) is a potentially hazardous asteroid and the target of
the Japanese Aerospace Exploration Agency's Hayabusa-2 sample return
mission. JU3 is also a backup target for two other sample
return missions: NASA's OSIRIS-REx and the European Space Agency's Marco
Polo-R. We use dynamical information to identify an inner-belt,
low-inclination origin through the ν6 resonance, more
specifically, the region with 2.15 AU < a < 2.5 AU and i <
8°. The geometric albedo of JU3 is 0.07 ± 0.01,
and this inner-belt region contains four well-defined low-albedo
asteroid families (Clarissa, Erigone, Polana, and Sulamitis), plus a
recently identified background population of low-albedo asteroids
outside these families. Only two of these five groups, the background
and the Polana family, deliver JU3-sized asteroids to the
ν6 resonance, and the background delivers significantly
more JU3-sized asteroids. The available spectral evidence is
also diagnostic; the visible and near-infrared spectra of JU3
indicate it is a C-type asteroid, which is compatible with members of
the background, but not with the Polana family because it contains
primarily B-type asteroids. Hence, this background population of
low-albedo asteroids is the most likely source of JU3.
Related projects
![Image of active asteroid P/2013 R3 (CATALINA-PANSTARRS) obtained with the 10.4m GTC telescope (La Palma, Spain). The nucleus of the object is splitted in at least four fragments (bright nucleus and fragments labeled A, B, and C) that remained active after the cometary-like spitting event Project Image](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/Imagen%20Julia.jpg?h=a20dd341&itok=Mh16lYlm)
Minor Bodies of the Solar System
This project studies the physical and compositional properties of the so-called minor bodies of the Solar System, that includes asteroids, icy objects, and comets. Of special interest are the trans-neptunian objects (TNOs), including those considered the most distant objects detected so far (Extreme-TNOs or ETNOs); the comets and the comet-asteroid
Julia de
León Cruz