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5 papers · 2 filters
An updated estimate of the number of Jupiter-family comets using a simple fading law
R. Brasser, J. -H. Wang
It has long been hypothesised that the Jupiter-family comets (JFCs) come from the scattered disc, an unstable planetesimal population beyond Neptune. This viewpoint has been widely…
A carefully characterised and tracked Trans-Neptunian survey, the size-distribution of the Plutinos and the number of Neptunian Trojans
Mike Alexandersen, Brett Gladman, J. J. Kavelaars +3
The Trans-Neptunian Objects (TNOs) may preserve evidence of planet building in their orbital and size-distributions. While all populations show steep size-distributions for large o…
Pan-STARRS 1 observations of the unusual active Centaur P/2011 S1(Gibbs)
H. W. Lin, Y. T. Chen, P. Lacerda +13
P/2011 S1 (Gibbs) is an outer solar system comet or active Centaur with a similar orbit to that of the famous 29P/Schwassmann-Wachmann 1. P/2011 S1 (Gibbs) has been observed by the…
An Oort cloud origin of the Halley-type comets
J. -H. Wang, R. Brasser
The origin of the Halley-type comets (HTCs) is one of the last mysteries of the dynamical evolution of the Solar System. Prior investigation into their origin has focused on two so…
Dust in Protoplanetary Disks: A Clue as to the Critical Mass of Planetary Cores
Yasuhiro Hasegawa, Ralph E. Pudritz
Dust in protoplanetary disks is recognized as the building blocks of planets. In the core accretion scenario, the abundance of dust in disks (or metallicity) is crucial for forming…