Gravitational waves from a dust disk around a Schwarzschild black hole

Hajime Sotani, Motoyuki Saijo

Research output: Contribution to journalArticle

9 Citations (Scopus)

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 number024001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume74
Issue number2
DOIs
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Gravitational Waves
gravitational waves
Black Holes
dust
Radius
radii
Laser Interferometer
LISA (observatory)
Physical property
Power Spectrum
density distribution
power spectra
Antenna
Time Domain
physical properties
Perturbation
perturbation
Arbitrary
Approximation
approximation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Gravitational waves from a dust disk around a Schwarzschild black hole. / Sotani, Hajime; Saijo, Motoyuki.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 74, No. 2, 024001, 2006.

Research output: Contribution to journalArticle

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