Possibility to determine the radius of accretion disk by gravitational waves

H. Sotani, Motoyuki Saijo

Research output: Contribution to journalArticle

Abstract

We investigate gravitational waves from a dust disk around a Schwarzschild black hole to focus on whether we can extract any of its physical properties from a direct detection of gravitational waves. We adopt a black hole perturbation approach in a time domain, which is a satisfactory approximation to illustrate a dust disk in a supermassive black hole. We find that we can determine the radius of the disk by using the power spectrum of gravitational waves and that our method to extract the radius works for a disk of arbitrary density distribution. Therefore we believe a possibility exists for determining the radius of the disk from a direct observation of gravitational waves detected by the Laser Interferometer Space Antenna.

Original languageEnglish
Article number012053
JournalJournal of Physics: Conference Series
Volume68
Issue number1
DOIs
Publication statusPublished - 2007 Jun 1
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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