Eclipsing binary Trojan asteroid Patroclus: Thermal inertia from Spitzer observations

@article{Mueller2010EclipsingBT,
  title={Eclipsing binary Trojan asteroid Patroclus: Thermal inertia from Spitzer observations},
  author={Michael Mueller and Franck Marchis and Joshua P. Emery and Alan W. Harris and Stefano Mottola and Daniel Hestroffer and J. Berthier and Mario di Martino},
  journal={Icarus},
  year={2010},
  volume={205},
  pages={505-515}
}
We present mid-infrared (8-33 micron) observations of the binary L5-Trojan system (617) Patroclus-Menoetius before, during, and after two shadowing events, using the Infrared Spectrograph (IRS) on board the Spitzer Space Telescope.F or the first time, we effectively observe changes in asteroid surface temperature in real time, allowing the thermal inertia to be determined very directly. A new detailed binary thermophysical model is presented which accounts for the system's known mutual orbit… Expand

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References

SHOWING 1-10 OF 65 REFERENCES
Surface Properties of Asteroids from Mid-Infrared Observations and Thermophysical Modeling
The subject of this work is the physical characterization of asteroids, focusing on the thermal inertia of near-Earth asteroids (NEAs). Thermal inertia governs the Yarkovsky effect, aExpand
A low density of 0.8 g cm-3 for the Trojan binary asteroid 617 Patroclus
TLDR
It is reported that the components of 617 Patroclus move around the system's centre of mass, describing a roughly circular orbit, and a very low density is derived, suggesting that they could have been formed in the outer part of the Solar System. Expand
The properties of Jovian Trojan asteroids listed in SDSS Moving Object Catalogue 3
We analyse 1187 observations of about 860 unique candidate Jovian Trojan asteroids listed in the 3rd release of the Sloan Digital Sky Survey (SDSS) Moving Object Catalogue. The sample is complete atExpand
Population and Size Distribution of Small Jovian Trojan Asteroids
We present a study of Jovian Trojan objects detected serendipitously during the course of a sky survey conducted at the University of Hawaii 2.2 m telescope. We used a 8192 × 8192 pixelExpand
The size and albedo of Rosetta fly-by target 21 Lutetia from new IRTF measurements and thermal modeling
Recent spectroscopic observations indicate that the M-type asteroid 21 Lutetia has a primitive, carbonaceous-chondrite-like (C-type) surface composition for which a low geometric albedo would beExpand
Physical characterization of the potentially hazardous high-albedo Asteroid (33342) 1998 WT24 from thermal-infrared observations
Abstract The potentially hazardous Asteroid (33342) 1998 WT24 approached the Earth within 0.0125 AU on 2001 December 16 and was the target of a number of optical, infrared, and radar observingExpand
Binary asteroid population 1. Angular momentum content
Abstract We compiled a list of estimated parameters of binary systems among asteroids from near-Earth to trojan orbits. In this paper, we describe the construction of the list, and we present resultsExpand
Thermal emission spectroscopy (5.2–38 μm) of three Trojan asteroids with the Spitzer Space Telescope: Detection of fine-grained silicates
Abstract We present thermal emission spectra (5.2–38 μm) of the Trojan asteroids 624 Hektor, 911 Agamemnon, and 1172 Aneas. The observations used the Infrared Spectrograph (IRS) on board the SpitzerExpand
Chaotic capture of Jupiter's Trojan asteroids in the early Solar System
TLDR
It is shown that the Trojans could have formed in more distant regions and been subsequently captured into co-orbital motion with Jupiter during the time when the giant planets migrated by removing neighbouring planetesimals. Expand
The surface properties of small asteroids: Peculiar Betulia—A case study
Abstract We present the results of extensive thermal–infrared observations of the C-type near-Earth Asteroid (1580) Betulia obtained in June 2002 with the 3-m NASA Infrared Telescope Facility (IRTF)Expand
...
1
2
3
4
5
...