Cumulative shift of periastron time of binary pulsar with Kozai–Lidov oscillation

Haruka Suzuki, Priti Gupta, Hirotada Okawa, Kei Ichi Maeda

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We study a hierarchical triple system with the Kozai–Lidov mechanism, and analyse the cumulative shift of periastron time of a binary pulsar by the emission of gravitational waves. Time evolution of the osculating orbital elements of the triple system is calculated by directly integrating the first-order post-Newtonian equations of motion. The Kozai–Lidov mechanism will bend the evolution curve of the cumulative shift when the eccentricity becomes large. We also investigate the parameter range of mass and semimajor axis of the third companion with which the bending of the cumulative-shift curve could occur within 100 yr.

本文言語English
ページ(範囲)L52-L57
ジャーナルMonthly Notices of the Royal Astronomical Society: Letters
486
1
DOI
出版ステータスPublished - 2019 6 1

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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