Constraints on the original ejection velocity fields of asteroid families
نویسندگان
چکیده
منابع مشابه
Reconstructing the Original Ejection Velocity Fields of Asteroid Families
The kinematical properties of the fragment ejection processes in the events that produced the presently known asteroid families have long been poorly known due to the presence of a couple of unknown angles (the true anomaly and the argument of the perihelion of the parent body at the epoch of the family formation) in Gauss' equations. In the present paper a general procedure for obtaining a rel...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولInterlopers within Asteroid Families
A statistical method for the evaluation of the probable amount of interlopers included in the most recently identi ed asteroid families is developed. The method is based on the analysis of the local properties of the asteroidal distribution in the zones of the proper element space in which families are located. An application to the most important families listed by Zappal a et al. [1995, Icaru...
متن کاملThe shallow magnitude distribution of asteroid families
It is well known that asteroid families have steeper absolute magnitude (H) distributions for H 12–13 values than the background population. Beyond this threshold, the shapes of the absolute magnitude distributions in the family/background populations are difficult to determine, primarily because both populations are not yet observationally complete. Using a recently generated catalog containin...
متن کاملEpisodic Ejection from Active Asteroid 311P/PANSTARRS
We examine the development of the active asteroid 311P/PANSTARRS (formerly, 2013 P5) in the period from 2013 September to 2014 February using high resolution images from the Hubble Space Telescope. This multi-tailed object is characterized by a single, reddish nucleus of absolute magnitudeH ≥ 18.98±0.10, corresponding to an equal-area sphere of radius≤200±20 m (for assumed geometric albedo 0.29...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2016
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stw043