Moment of inertia, quadrupole moment, Love number of neutron star and their relations with strange-matter equations of state

被引：21
作者：
Bandyopadhyay, Debades [1 ]
Bhat, Sajad A. [1 ]
Char, Prasanta [2 ]
Chatterjee, Debarati [3 ]
机构：
[1] HBNI, Saha Inst Nucl Phys, 1 AF Bidhannagar, Kolkata 700064, India
[2] Interuniv Ctr Astron & Astrophys, Post Bag 4, Pune 411007, Maharashtra, India
[3] LPC ENSICAEN, 6 Blvd Marechal Juin, F-14050 Caen, France
来源：
EUROPEAN PHYSICAL JOURNAL A | 2018年 / 54卷 / 02期
关键词：
HYPERONS;
D O I：
10.1140/epja/i2018-12456-y
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We investigate the impact of strange-matter equations of state involving. hyperons, Bose-Einstein condensate of K- mesons and first-order hadron-quark phase transition on moment of inertia, quadrupole moment and tidal deformability parameter of slowly rotating neutron stars. All these equations of state are compatible with the 2 M-solar constraint. The main findings of this investigation are the universality of the I-Q and I-Love number relations, which are preserved by the EoSs including. hyperons and antikaon condensates, but broken in the presence of a first-order hadron-quark phase transition. Furthermore, it is also noted that the quadrupole moment approaches the Kerr value of a black hole for maximum-mass neutron stars.
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页数：7
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