Neutron and quark stars in f (R) gravity

被引：17
|
作者：
Astashenok, Artyom V. [1 ]
机构：
[1] I Kant Baltic Fed Univ, Inst Phys & Technol, Nevskogo 14, Kaliningrad 236041, Russia
来源：
PROCEEDINGS OF THE 9TH ALEXANDER FRIEDMANN INTERNATIONAL SEMINAR ON GRAVITATION AND COSMOLOGY AND 3RD SATELLITE SYMPOSIUM ON THE CASIMIR EFFECT | 2016年 / 41卷
关键词：
Modified gravity; neutron stars; strange stars; STRONG MAGNETIC-FIELDS; LAMBDA; MATTER; STATE;
D O I：
10.1142/S2010194516601307
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The realistic compact star models are considered in f (R) gravity. The main result is that simple modified gravity can be consistent with current observational mass limit of neutron stars, with current data on their masses and radii; also, it simplifies solution of the hyperon problem. The effect of strong magnetic field in R-2-gravity is also investigated. The existence of more compact (in comparison with General Relativity) stars with large magnetic fields in central regions is possible. In fact the second branch of stability appears.
引用
收藏
页数：9
相关论文
共 50 条
  • [1] Magnetic neutron stars in f(R) gravity
    Astashenok, Artyom V.
    Capozziello, Salvatore
    Odintsov, Sergei D.
    ASTROPHYSICS AND SPACE SCIENCE, 2015, 355 (02) : 333 - 341
  • [2] Neutron stars in generalized f(R) gravity
    Emilio Santos
    Astrophysics and Space Science, 2012, 341 : 411 - 416
  • [3] Neutron stars in generalized f(R) gravity
    Santos, Emilio
    ASTROPHYSICS AND SPACE SCIENCE, 2012, 341 (02) : 411 - 416
  • [4] Magnetic neutron stars in f(R) gravity
    Artyom V. Astashenok
    Salvatore Capozziello
    Sergei D. Odintsov
    Astrophysics and Space Science, 2015, 355 : 333 - 341
  • [5] Constraints on perturbative f(R) gravity via neutron stars
    Arapoglu, Savas
    Deliduman, Cemsinan
    Eksi, K. Yavuz
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (07):
  • [6] Neutron stars in a perturbative f(R) gravity model with strong magnetic fields
    Cheoun, Myung-Ki
    Deliduman, Cemsinan
    Gungor, Can
    Keles, Vildan
    Ryu, C. Y.
    Kajino, Toshitaka
    Mathews, Grant J.
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2013, (10):
  • [7] Dipole magnetic field of neutron stars in f(R) gravity
    Bakirova, Elizat
    Folomeev, Vladimir
    GENERAL RELATIVITY AND GRAVITATION, 2016, 48 (10)
  • [8] Neutron stars in f(R) gravity and scalar-tensor theories
    Kase, Ryotaro
    Tsujikawa, Shinji
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2019, (09):
  • [9] Anisotropic quark stars in f(R,T) gravity
    Sharif, M.
    Waseem, Arfa
    EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (10):
  • [10] Nonperturbative models of quark stars in f (R) gravity
    Astashenok, Artyom V.
    Capozziello, Salvatore
    Odintsov, Sergei D.
    PHYSICS LETTERS B, 2015, 742 : 160 - 166
12345