کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9727809 1480210 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Power-law stellar distributions
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Power-law stellar distributions
چکیده انگلیسی
The density profiles and other quantities of physical interest for spherically symmetric systems are computed by assuming that a collisionless stellar gas may relax to the non-Gaussian power-law distribution suggested by the nonextensive kinetic theory. There are two different classes of solutions. The first class behaves like a subset of the polytropic Lane-Emden spheres, whereas the second one corresponds to a transition between two different potytropic indices. Unlike the isothermal Maxwellian sphere, the total mass and sizes of both classes are finite for a large range of the nonextensive q-parameter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 350, Issues 2–4, 15 May 2005, Pages 303-314
نویسندگان
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