Boson star from repulsive light scalars and gravitational waves | |
Croon, Djuna; Fan, JiJi3; Sun, Chen2,3 | |
刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS |
2019 | |
期号 | 4页码:8 |
关键词 | BOUNDARY-VALUE-PROBLEMS DARK-MATTER CP CONSERVATION SINGULARITY CONSTRAINTS INVARIANCE |
ISSN号 | 1475-7516 |
DOI | 10.1088/1475-7516/2019/04/008 |
英文摘要 | We study properties of boson stars consisting of ultra-light scalar dark matter with repulsive self-interactions. We investigate the origin of the maximum mass of spherically symmetric stable stars which emerges only when solving the full equations of motion in curved space-time, but not when solving the approximated Schrodinger-Newton equations. When the repulsion is weak, the backreaction of the curvature on the scalars acts as an additional source of attraction and can overcome the repulsion, resulting in a maximum star mass and compactness. We also point out that the potential in a UV completed particle physics model of light scalar dark matter is generally more complicated than the widely used phi(4) interaction. Additional interactions beyond phi(4) in the potential can dramatically change the properties of boson stars as well as modify the prospect of LIGO gravitational wave detection for binary mergers of boson stars. |
学科主题 | Astronomy & Astrophysics ; Physics |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/27541] |
专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
作者单位 | 1.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 2.Brown Univ, Dept Phys, Providence, RI 02912 USA 3.TRIUMF Theory Grp, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada |
推荐引用方式 GB/T 7714 | Croon, Djuna,Fan, JiJi,Sun, Chen. Boson star from repulsive light scalars and gravitational waves[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(4):8. |
APA | Croon, Djuna,Fan, JiJi,&Sun, Chen.(2019).Boson star from repulsive light scalars and gravitational waves.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(4),8. |
MLA | Croon, Djuna,et al."Boson star from repulsive light scalars and gravitational waves".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .4(2019):8. |
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