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相关论文: Trans-Neptunian objects and Centaurs at thermal wa…

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Centaurs are the transitional population between trans-Neptunian objects (TNOs) and Jupiter-family comets. For this reason it is possible to access the smaller ones, which is more difficult to do with the TNO population. The goal of this…

Discovery of transneptunian object (TNO) satellites and determination of their orbits has recently enabled estimation of the size and albedo of several small TNOs, extending the size range of objects having known size and albedo down into…

天体物理学 · 物理学 2009-11-10 W. M. Grundy , K. S. Noll , D. C. Stephens

Trans-Neptunian objects (TNO) represent the leftovers of the formation of the Solar System. Their physical properties provide constraints to the models of formation and evolution of the various dynamical classes of objects in the outer…

Transneptunian objects (TNOs) are bodies populating the Kuiper Belt and they are believed to retain the most pristine and least altered material of the solar system. The Herschel Open Time Key Program entitled "TNOs are Cool: A survey of…

Physical characterization of Trans-Neptunian objects, a primitive population of the outer solar system, may provide constraints on their formation and evolution. The goal of this work is to characterize a set of 15 scattered disk (SDOs) and…

The sensitivity of ALMA makes it possible to detect thermal mm/submm emission from small/distant Solar System bodies at the sub-mJy level. Measured fluxes are primarily sensitive to the objects' diameters, but deriving precise sizes is…

地球与行星天体物理 · 物理学 2017-12-06 E. Lellouch , R. Moreno , T. Müller , S. Fornasier , P. Santos-Sanz , A. Moullet , M. Gurwell , J. Stansberry , R. Leiva , B. Sicardy , B. Butler , J. Boissier

A group of trans-Neptunian objects (TNO) are dynamically related to the dwarf planet 136108 Haumea. Ten of them show strong indications of water ice on their surfaces, are assumed to have resulted from a collision, and are accepted as the…

The goal of this work is to determine the physical characteristics of resonant, detached and scattered disk objects in the transneptunian region, observed mainly in the framework of the "TNOs are Cool!" Herschel Open Time Key Program. Based…

地球与行星天体物理 · 物理学 2020-07-01 A. Farkas-Takács , Cs. Kiss , E. Vilenius , G. Marton , T. G. Müller , M. Mommert , J. Stansberry , E. Lellouch , P. Lacerda , A. Pál

We present observations of thermal emission from fifteen transneptunian objects (TNOs) made using the Spitzer Space Telescope. Thirteen of the targets are members of the Classical population: six dynamically hot Classicals, five dynamically…

天体物理学 · 物理学 2009-01-22 M. J. Brucker , W. M. Grundy , J. A. Stansberry , J. R. Spencer , S. S. Sheppard , E. I. Chiang , M. W. Buie

We analyze albedo data obtained using the Herschel Space Observatory that reveal the existence of two distinct types of surface among midsized transneptunian objects. A color-albedo diagram shows two large clusters of objects, one redder…

The goal of the Herschel Open Time Key programme "TNOs are Cool!" is to derive the physical and thermal properties for a large sample of Centaurs and trans-Neptunian objects (TNOs), including resonant, classical, detached and scattered disk…

The study of the surface properties of Centaurs and Trans-Neptunian Objects (TNOs) provides essential information about the early conditions and evolution of the outer Solar System. Due to the faintness of most of these distant and icy…

地球与行星天体物理 · 物理学 2009-12-15 D. Perna , M. A. Barucci , S. Fornasier , F. E. DeMeo , A. Alvarez-Candal , F. Merlin , E. Dotto , A. Doressoundiram , C. de Bergh

We present optical colors of 72 transneptunian objects (TNOs), and infrared colors of 80 TNOs obtained with the WFPC2 and NICMOS instruments, respectively, on the Hubble Space Telescope (HST). Both optical and infrared colors are available…

地球与行星天体物理 · 物理学 2015-05-27 S. D. Benecchi , K. S. Noll , D. C. Stephens , W. M. Grundy , J. Rawlins

We analyze a vast light curve database by obtaining mean rotational properties of the entire sample, determining the spin frequency distribution and comparing those data with a simple model based on hydrostatic equilibrium. For the rotation…

地球与行星天体物理 · 物理学 2009-11-05 R. Duffard , J. L. Ortiz , A. Thirouin , P. Santos-Sanz , N. Morales

We present Herschel PACS photometry of 18 Plutinos and determine sizes and albedos for these objects using thermal modeling. We analyze our results for correlations, draw conclusions on the Plutino size distribution, and compare to earlier…

Trans-Neptunian objects (TNOs) contain the most primitive and thermally least-processed materials from the early accretional phase of the solar system. They allow us to study interrelations between various classes of small bodies, their…

天体物理学 · 物理学 2009-11-13 S. Bagnulo , I. Belskaya , K. Muinonen , G. P. Tozzi , M. A. Barucci , L. Kolokolova , S. Fornasier

The classical Kuiper belt contains objects both from a low-inclination, presumably primordial, distribution and from a high-inclination dynamically excited population. Based on a sample of classical TNOs with observations at thermal…

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