Polytropic stars in Palatini gravity

被引：30
|
作者：
Wojnar, Aneta [1 ,2 ,3 ]
机构：
[1] Marie Curie Sklodowska Univ, Inst Phys, Pl Marii Curie Sklodowskiej 1, PL-20031 Lublin, Poland
[2] Univ Fed Espirito Santo, Nucleo Cosmo, BR-29075910 Vitoria, ES, Brazil
[3] Univ Fed Espirito Santo, PPGCosmo, BR-29075910 Vitoria, ES, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 01期
关键词：
EXTENDED THEORIES; ENERGY; COSMOLOGY; STABILITY;
D O I：
10.1140/epjc/s10052-019-6555-4
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We have derived a modified Lane-Emden equation for the Starobinsky model in Palatini gravity which is numerically solvable. Comparing the results to the ones provided by General Relativity we observe a significant difference depending on the theory parameter for the M - R relations.
引用
收藏
页数：9
相关论文
共 50 条
  • [21] Stability analysis of neutron stars in Palatini f(R, T) gravity
    Bhatti, M. Z.
    Yousaf, Z.
    Zarnoor
    GENERAL RELATIVITY AND GRAVITATION, 2019, 51 (11)
  • [22] Compact static stars with polytropic equation of state in minimal dilatonic gravity
    Fiziev, Plamen
    Marinov, Kalin
    BULGARIAN ASTRONOMICAL JOURNAL, 2015, 23 : 3 - 13
  • [23] Constraining Palatini gravity with GR-independent equations of state for neutron stars
    Lope-Oter, Eva
    Wojnar, Aneta
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2024, (02):
  • [24] NUCLEUS OF POLYTROPIC STARS
    SRIVASTAVA, S
    TRANSACTIONS OF THE NEW YORK ACADEMY OF SCIENCES, 1972, 34 (06) : 485 - +
  • [25] Mass-to-radius profiles of Newtonian polytropic spheres: Low-mass main-sequence stars in Palatini gravity versus dark-matter-admixed low-mass stars in general relativity
    Lopes, Ilidio
    Panotopoulos, Grigoris
    PHYSICAL REVIEW D, 2019, 99 (10)
  • [26] Anisotropic solution for polytropic stars in 4D Einstein–Gauss–Bonnet gravity
    Ksh. Newton Singh
    S. K. Maurya
    Piyali Bhar
    Riju Nag
    The European Physical Journal C, 82
  • [27] Unified formalism for Palatini gravity
    Capriotti, S.
    INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2018, 15 (03)
  • [28] Cosmology in Palatini theories of gravity
    Olmo, Gonzalo J.
    TOWARDS NEW PARADIGMS: PROCEEDING OF THE SPANISH RELATIVITY MEETING 2011, 2012, 1458 : 222 - 237
  • [29] Quintessential inflation in Palatini gravity
    Verner, Sarunas
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2021, (04):
  • [30] Charged polytropic compact stars
    Ray, S
    Malheiro, M
    Lemos, JPS
    Zanchin, VT
    BRAZILIAN JOURNAL OF PHYSICS, 2004, 34 (1A) : 310 - 314
12345