I-Love-Q: Universal Relations for Neutron Stars and Their Applications to Fundamental Physics

DOI Web Site

Bibliographic Information

Other Title
  • I-Love-Q:中性子星における普遍的関係性と基礎物理学検証への応用
  • I-Love-Q : チュウセイシセイ ニ オケル フヘンテキ カンケイセイ ト キソ ブツリガク ケンショウ エ ノ オウヨウ

Search this article

Abstract

<p>One of the biggest uncertainties in nuclear physics lies on the equation of state for supranuclear matter, and neutron stars offer excellent testbeds to probe dense matter physics. In this article, I explain rather unexpected universal relations among neutron star observables that do not depend strongly on the underlying equation of state. In particular, I explain the relations among the stellar moment of inertial (I), tidal deformability (or Love number) and quadrupole moment (Q), hence the I-Love-Q relations. Such relations are extremely useful for probing fundamental physics. For example, one can use such relations to probe strong-field gravity without being affected by uncertainties in nuclear physics. Similar universal relations also hold among stellar multipole moments that resemble the well-known no-hair properties for black holes. I end this article by explaining the possible origin of such universality and speculating its relation to the universality that appears in second-order phase transitions in condensed matter physics.</p>

Journal

  • Butsuri

    Butsuri 73 (6), 370-375, 2018-06-05

    The Physical Society of Japan

Keywords

Details 詳細情報について

Report a problem

Back to top