On the impact of nonlocal gravity on compact stars

被引:1
作者
Panotopoulos, Grigoris [1 ,2 ]
Rubio, Javier [1 ,3 ,4 ]
Lopes, Ilidio [1 ]
机构
[1] Univ Lisboa UL, Ctr Astrofis & Gravitacao CENTRA, Inst Super Tecn IST, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
[2] Univ La Frontera, Dept Ciencias Fis, Casilla 54-D, Temuco 4811186, Chile
[3] Univ Complutense Madrid, Dept Fis Teor, E-28040 Madrid, Spain
[4] Univ Complutense Madrid, Inst Fis Particulas & Cosmos IPARCOS UCM, E-28040 Madrid, Spain
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2023年 / 32卷 / 02期
关键词
Relativistic stars; composition of astronomical objects; theories of gravity other than GR; MODELS; MASS;
D O I
10.1142/S0218271822501395
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the impact of nonlocal modifications of General Relativity on stellar structure. In particular, assuming an analytic distortion function and specific equations of state, we made use of remnant stars to put qualitative constraints on a parameter not directly restricted by solar system tests. Using current data sets available for white dwarfs and strange quark stars candidates, we find that the most stringent bounds come from the objects displaying the highest core densities, namely strange quark stars. Specifically, the constraints obtained from this class of stars are three to four orders of magnitude tighter than those obtained using white dwarfs.
引用
收藏
页数:19
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