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相关论文: Thermophysical properties of near-Earth asteroid (…

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In this paper, we investigate thermophysical characteristics of near-Earth asteroid (341843) 2008 EV5, based on our improved Advanced Thermal Physical Model (ATPM) by considering the contribution of sunlight-reflection for rough surface,…

地球与行星天体物理 · 物理学 2020-06-26 Haoxuan Jiang , Liangliang Yu , Jianghui Ji

By means of a varied-shape thermophysical model (VS-TPM) of Hanus et al. (2015) that takes into account asteroid shape and pole uncertainties, we analyze the thermal IR data acquired by the NASA's WISE satellite of about 300 asteroids with…

地球与行星天体物理 · 物理学 2018-05-28 Josef Hanus , Marco Delbo , Josef Durech , Victor Ali-Lagoa

The thermal inertia of an asteroid is an indicator of the thermophysical properties of the regolith and is determined by the size of grains on the surface. Previous thermophysical modeling studies of asteroids have identified or suggested…

地球与行星天体物理 · 物理学 2021-07-14 Eric M. MacLennan , Joshua P. Emery

In this work, we investigate the thermophysical properties, including thermal inertia, roughness fraction and surface grain size of OSIRIS-REx target asteroid (101955) Bennu by using a thermophysical model with the recently updated 3D…

地球与行星天体物理 · 物理学 2016-03-10 LiangLiang Yu , Jianghui Ji

We present the modeling results of the thermal lightcurve of asteroid (3) Juno at the wavelength of $\lambda$ = 1.3 mm measured by the Atacama Large Millimeter-submillimeter Array. A thermophysical model together with a radiative transfer…

地球与行星天体物理 · 物理学 2026-04-09 Jian-Yang Li , Timothy N. Titus , Arielle Moullet , Henry H. Hsieh

In this work, we investigate the thermophysical properties of OSIRIS-REx target asteroid (101955) Bennu (hereafter, Bennu), where thermal inertia plays an important role in understanding the nature of the asteroid's surface, and will…

地球与行星天体物理 · 物理学 2015-11-10 LiangLiang Yu , Jianghui Ji

The thermal inertia of an asteroid's surface can provide insight into regolith properties, such as the presence of a layer of fine dust, the density and thermal conductivity of a rocky surface, and, together with other observational data,…

地球与行星天体物理 · 物理学 2020-10-06 Alan W. Harris , Line Drube

In this paper, a 3D convex shape model of (175706) 1996 FG3, which consists of 2040 triangle facets and 1022 vertices, is derived from the known lightcurves. The best-fit orientation of the asteroid's spin axis is determined to be $\lambda…

地球与行星天体物理 · 物理学 2014-04-01 LiangLiang Yu , Jianghui Ji , Su Wang

We present new thermophysical model (TPM) fits of 1,847 asteroids, deriving thermal inertia, diameter, and Bond and visible geometric albedo. We use thermal flux measurements obtained by the Wide-field Infrared Survey Explorer (WISE; Wright…

地球与行星天体物理 · 物理学 2023-05-04 Denise Hung , Josef Hanuš , Joseph R. Masiero , David J. Tholen

(704) Interamnia is one of the largest asteroids that locates in the outer main-belt region, which may contain a large amount of water ice underneath its surface. We observe this asteroid using 8.2 m Subaru telescope at mid-infrared…

地球与行星天体物理 · 物理学 2023-02-28 Haoxuan Jiang , Jianghui Ji , Liangliang Yu , Bin Yang , Shoucun Hu , Yuhui Zhao

In this work, we investigate the surface thermophysical properties (thermal emissivity, thermal inertia, roughness fraction and geometric albedo) of asteroid (99942) Apophis, using the currently available thermal infrared observations of…

地球与行星天体物理 · 物理学 2017-09-20 LiangLiang Yu , Jianghui Ji , Wing-Huen Ip

The near-Earth asteroid (99942) Apophis is a potentially hazardous asteroid. We obtained far-infrared observations of this asteroid with the Herschel Space Observatory's PACS instrument at 70, 100, and 160 micron. These were taken at two…

地球与行星天体物理 · 物理学 2014-06-04 T. G. Müller , C. Kiss , P. Scheirich , P. Pravec , L. O'Rourke , E. Vilenius , B. Altieri

Asteroid (175706) 1996 FG3 is a binary asteroid and the baseline target for the proposed MarcoPolo-R sample-return mission. We present thermal IR photometry obtained with the ESO VLT+VISIR together with optical photometry obtained with the…

Characterizing the surface material of an asteroid is important for understanding its geology and for informing mission decisions, such as the selection of a sample site. Diurnal surface temperature amplitudes are directly related to the…

地球与行星天体物理 · 物理学 2020-02-25 Andrew J. Ryan , Daniel Pino Muñoz , Marc Bernacki , Marco Delbo

This work presents data processing, fitting procedure, modelling and analyzing of 9-years infrared light curves provided by the WISE/NEOWISE telescope, by which the regolith characteristics of Main-Belt Object (656) Beagle is studied. We…

地球与行星天体物理 · 物理学 2024-07-19 Liang-Liang Yu

Recent works have shown that the thermal inertia of km-sized near-Earth asteroids (NEAs) is more than two orders of magnitude higher than that of main belt asteroids (MBAs) with sizes (diameters) between 200 and 1,000 km. This confirms the…

天体物理学 · 物理学 2008-08-07 Marco Delbo , Paolo Tanga

We observed potentially hazardous asteroid (PHA) 2008 EV5 in the visible (0.30-0.92 microns) and near-IR (0.75-2.5 microns) wavelengths to determine its surface composition. This asteroid is especially interesting because it is a potential…

地球与行星天体物理 · 物理学 2015-06-11 Vishnu Reddy , Lucille Le Corre , Michael Hicks , Kenneth Lawrence , Bonnie Buratti , Paul Abell , Michael Gaffey , Paul Hardersen

In order to obtain the substantial information about the surface physics and thermal property of the target asteroid (162173) 1999 JU3, which will be visited by Hayabusa 2 in a sample return mission, with the Advanced Thermal Physical Model…

地球与行星天体物理 · 物理学 2018-05-15 Liangliang Yu , Jianghui Ji , Su Wang

Non-resolved thermal infrared observations enable studies of thermal and physical properties of asteroid surfaces provided the shape and rotational properties of the target are well determined via thermo-physical models. We used…

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