Good and proper: self-similarity of N-body simulations with proper force softening
نویسندگان
چکیده
منابع مشابه
Optimal Softening for N -body Simulations
We propose a strategy for determining the optimal softening length in N -body simulations. This strategy ensures that the ensemble-average acceleration error is minimal at a small radius r0, and that the error never exceeds the optimal value beyond r0. Analytic formulae are derived for calculating the acceleration error for any halo profile or softened gravity so that the optimal softening leng...
متن کاملOptimal Softening for N -body Halo Simulations
We propose to determine the optimal softening length in N -body halo simulations by minimizing the ensemble-average acceleration error at a small radius r0. This strategy ensures that the error never exceeds the optimal value beyond r0. Furthermore, we derive semi-analytic formulae for calculating the acceleration error due to the discreteness of particles and softened gravity, which are valida...
متن کاملFrame-invariant proper-force
Here we try to find “the best joints for carving up” the phenomenon of accelerated-motion so as to obtain (i) the least need for extended-networks of synchronized-clocks as well as (ii) the greatest frame-independence. The acceleration four-vector’s invariant magnitude, and a number of other quantities from the traveler’s point of view, show promise for broadening student understanding (and per...
متن کاملBehavioral Similarity - A Proper Metric
With the increasing influence of Business Process Management, large process model repositories emerged in enterprises and public administrations. Their effective utilization requires meaningful and efficient capabilities to search for models that go beyond text based search or folder navigation, e.g., by similarity. Existing measures for process model similarity are often not applicable for eff...
متن کاملTextual Similarity based on Proper Names
Proper names represent about 10% of English or French newspaper articles. Their quantity and informational quality is already used in different Information Extraction systems. Proper names have widely been studied in the MUC conferences designed to promote research in Information Extraction. We have created our own named entity extraction tool based on a linguistic description with automata. Th...
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: 2021
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stab1096