مشخصات پژوهش

عنوان	Spherical collapse model and cluster number counts in power-law f(T) gravity
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Cosmology - Dark energy- Structure Formation
چکیده	We study the spherical collapse model in the framework of spatially flat power law f(T) ∝ (− T)b gravity model. We find that the linear and non-linear growth of spherical overdensities of this particular f(T) model are affected by the power-law parameter b. Finally, we compute the predicted number counts of virialized haloes in order to distinguish the current f(T) model from the expectations of the concordance  cosmology. Specifically, the present analysis suggests that the f(T) gravity model with positive (negative) b predicts more (less) virialized objects with respect to those of  cold dark matter.
پژوهشگران	محمد ملک جانی (نفر اول)، اسپایروس باسیلاکوس (نفر دوم)، ندا حیدری (نفر سوم)