Models of rotating boson stars and geodesics around them: New type of orbits

被引：75

作者：

Grandclement, Philippe ^{[1
]}

Some, Claire ^{[1
]}

Gourgoulhon, Eric ^{[1
]}

机构：

[1] Univ Paris Diderot, Observ Paris, CNRS, F-92190 Meudon, France

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 02期

关键词：

GENERAL-RELATIVITY; EQUILIBRIUM; PARTICLES; THEOREM;

D O I：

10.1103/PhysRevD.90.024068

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have developed a highly accurate numerical code capable of solving the coupled Einstein-Klein-Gordon system, in order to construct rotating boson stars in general relativity. Free fields and self-interacting fields, with quartic and sextic potentials, are considered. In particular, we present the first numerical solutions of rotating boson stars with rotational quantum number k = 3 and k = 4, as well as the first determination of the maximum mass of free-field boson stars with k = 2. We have also investigated timelike geodesics in the spacetime generated by a rotating boson star for k = 1, 2 and 3. A numerical integration of the geodesic equation has enabled us to identify a peculiar type of orbit: the zero-angular-momentum ones. These orbits pass very close to the center and are qualitatively different from orbits around a Kerr black hole. Should such orbits be observed, they would put stringent constraints on astrophysical compact objects like the Galactic center.

引用

页数：20

共 55 条

[1] Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, U. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Allbrooke, B. M. M. .

PHYSICS LETTERS B, 2012, 716 (01) :1-29

[2]

Alcubierre M., 2008, Introduction to 3+1 numerical relativity, Vvol 140

[3]

[Anonymous], 2010, NUMERICAL RELATIVITY

[4]

[Anonymous], ARXIVGRQC0410040 U B

[5]

[Anonymous], ARXIV10035015 COMPST

[6]

[Anonymous], RELATIVITY SCI COMPU

[7]

[Anonymous], IN PRESS

[8]

[Anonymous], ARXIV14031865

[9]

[Anonymous], PRIMORDIAL COSMOLOGY

[10] CONSERVED QUANTITIES IN GENERAL-RELATIVITY [J].

ASHTEKAR, A ;

MAGNONASHTEKAR, A .

JOURNAL OF MATHEMATICAL PHYSICS, 1979, 20 (05) :793-800

← 1 2 3 4 5 6 →