Dynamical structure and origin of the Trans-Neptunian population
نویسندگان
چکیده
منابع مشابه
the underlying structure of language proficiency and the proficiency level
هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...
15 صفحه اولThe Extraordinary Colors of Trans-Neptunian Objects
In 1992, Jewitt and Luu (1993) carried out a survey of 0.7 square degrees of the sky to a limiting magnitude of We present B–V and V–R colors for trans-neptunian objects (TNOs) 1994 TB and 1993 SC. We have found that these TNOs R p 25 and discovered the first TNO (1992 QB1). Thirtyhave colors almost as red as 5145 Pholus which are therefore six TNOs have been discovered as of June, 1996. The co...
متن کاملThe Size Distribution of Trans-neptunian Bodies
We search 0.02 deg of the invariable plane for trans-Neptunian objects (TNOs) 25 AU or more distant using the Advanced Camera for Surveys (ACS) aboard the Hubble Space Telescope. With 22 ks per pointing, the search is more than 50% complete for m606W 29:2. Three new objects are discovered, the faintest with mean magnitude m 1⁄4 28:3 (diameter 25 km), which is 3 mag fainter than any previously w...
متن کاملScenarios for the Origin of the Orbits of the Trans-neptunian
Explaining the origin of the orbits of 2000 CR105 (a 1⁄4 230 AU, q 1⁄4 44 AU) and 2003 VB12 (a 1⁄4 531 AU, q 1⁄4 74 AU, unofficially known as Sedna) is a major test for our understanding of the primordial evolution of the outer solar system. Gladman et al. have shown that 2000 CR105 could not have been a normal member of the scattered disk that had its perihelion distance increased by chaotic d...
متن کاملFormation and migration of trans-Neptunian objects
s of the Conference ”Celestial Mechanics 2002: Results and Prospects” (10 14 September 2002, St. Petersburg, Russia), Institute of Applied Astronomy of Russian Academy of Sciences. We support the Eneev’s idea [1] that the largest (with diameter d>100 km) trans-Neptunian objects (TNOs) moving now in not very eccentric orbits could be formed directly by the compression of rarefied dust condensati...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2005
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921305006745