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相关论文: Stellar Occultations by Transneptunian objects: fr…

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Stellar occultations provide a powerful tool to explore objects of the outer solar system. The Gaia mission now provides milli-arcsec accuracy on the predictions of these events and makes possible observations that were previously…

地球与行星天体物理 · 物理学 2024-12-11 Bruno Sicardy , Felipe Braga-Ribas , Marc W. Buie , José Luis Ortiz , Françoise Roques

The exploration of kilometre-sized trans-Neptunian objects (TNOs) is one of the ultimate goals in the search for the origin and evolution of the Solar System. However, such exploration is challenging because these small bodies are too faint…

地球与行星天体物理 · 物理学 2024-11-08 Ko Arimatsu

Stellar occultation is a powerful technique that allows the determination of some physical parameters of the occulting object. The result depends on the photometric accuracy, the temporal resolution, and the number of chords obtained. Space…

A stellar occultation by a trans-Neptunian object (TNO) provides an opportunity to probe its size and shape. Very few occultations by TNOs have been sampled simultaneously from multiple locations, while a robust estimation of shadow size…

Occultations, the covering up of one celestial body by another celestial body, have been used in astronomy for millennia to learn about the sun and moon. Since 2018, VERITAS has implemented a program to detect predicted asteroid…

天体物理仪器与方法 · 物理学 2025-12-15 Joshua Bartkoske , Anne Duerr , Dave Kieda

The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have…

The serendipitous detection of stellar occultations by Outer Solar System objects is a powerful method for ascertaining the small end ($r \lesssim 15$ km) of the size distribution of Kuiper Belt Objects and may potentially allow the…

天体物理学 · 物理学 2008-11-26 T. C. Nihei , M. J. Lehner , F. B. Bianco , S. -K. King , J. M. Giammarco , C. Alcock

We study large trans-neptunian objects (TNOs) using stellar occultations. We derive precise astrometric predictions for stellar occultations by Eris, Haumea, Ixion, Makemake, Orcus, Quaoar, Sedna, Varuna, 2002 TX300, and 2003 AZ84 for…

地球与行星天体物理 · 物理学 2015-06-04 M. Assafin , J. I. B. Camargo , R. Vieira Martins , F. Braga-Ribas , B. Sicardy , A. H. Andrei , D. N. da Silva Neto

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

Serendipitous stellar occultation search is so far the only way to detect the existence of very small, very dim, remote objects in the solar system. To date, however, there are only very few reported detections for trans-Neptunian objects…

地球与行星天体物理 · 物理学 2015-05-19 Hsiang-Kuang Chang , Chih-Yuan Liu , Kuan-Ting Chen

To study the population properties of small, remote objects beyond Neptune's orbit in the outer solar system, of kilometer size or smaller, serendipitous occultation search is so far the only way. For hectometer-sized Trans-Neptunian…

地球与行星天体物理 · 物理学 2015-06-12 Hsiang-Kuang Chang , Chih-Yuan Liu , Kuan-Ting Chen

Trans-Neptunian objects (TNOs) are among the most primitive remnants of the early Solar System, and constraining their sizes, shapes, albedos, and surface properties is essential for understanding their origin and evolution. Stellar…

The most pristine remnants of the Solar system's planet formation epoch orbit the Sun beyond Neptune, the small bodies of the trans-Neptunian object populations. The bulk of the mass is in ~100 km objects, but objects at smaller sizes have…

地球与行星天体物理 · 物理学 2024-02-19 Andrew Shannon , Alain Doressoundiram , Françoise Roques , Bruno Sicardy , Quentin Kral

The history of the outer solar system is intrinsically related to the Giant Planets migration. A massive disk of material within a radius of 30~au was scattered during the planetary migration, creating different dynamic populations in the…

地球与行星天体物理 · 物理学 2025-03-05 Felipe Braga-Ribas , Frederic Vachier , Josselin Desmars , Giuliano Margoti , Bruno Sicardy

We present a method to identify distant solar system objects in long-term wide-field asteroid survey data, and conduct a search for them in the Pan-STARRS1 (PS1) image data acquired from 2010 to mid-2015. We demonstrate that our method is…

The Taiwanese-American Occultation Survey (TAOS) will detect objects in the Kuiper Belt, by measuring the rate of occultations of stars by these objects, using an array of three to four 50cm wide-field robotic telescopes. Thousands of stars…

天体物理学 · 物理学 2007-05-23 Chyng-Lan Liang , John A. Rice , Imke de Pater , Charles Alcock , Tim Axelrod , Andrew Wang

Knowledge of the Kuiper Belt is currently limited to those objects that can be detected directly. Objects with diameters less than $\sim$10km reflect too little light to be detected. These smaller bodies could contain most of the mass in…

天体物理学 · 物理学 2007-12-11 R. Stevenson

The prediction of stellar occultations by Transneptunian objects and Centaurs is a difficult challenge that requires accuracy both in the occulted star position as for the object ephemeris. Until now, the most used method of prediction…

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