کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5487874 1523850 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mimicking dark matter in Horndeski gravity
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Mimicking dark matter in Horndeski gravity
چکیده انگلیسی
Since the rediscovery of Horndeski gravity, a lot of work has been devoted to the exploration of its properties, especially in the context of dark energy. However, one sector of this theory, namely the one containing the coupling of the Einstein tensor to the kinetic term of the scalar field, shows some surprising features in the construction of black holes and neutron stars. Motivated by these new results, I explore the possibility that this sector of Horndeski gravity can mimic cold dark matter at cosmological level and also explain the flattening of galactic rotation curves. I will show that, in principle, it is possible to achieve both goals with at least two scalar fields and a minimal set of assumptions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics of the Dark Universe - Volume 16, June 2017, Pages 14-21
نویسندگان
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