Premerger localization of gravitational-wave standard sirens with LISA: Harmonic mode decomposition

Bence Kocsis, Zoltán Haiman, Kristen Menou, Z. Frei

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The continuous improvement in localization errors (sky position and distance) in real time as LISA observes the gradual inspiral of a supermassive black hole binary can be of great help in identifying any prompt electromagnetic counterpart associated with the merger. We develop a new method, based on a Fourier decomposition of the time-dependent, LISA-modulated gravitational-wave signal, to study this intricate problem. The method is faster than standard Monte Carlo simulations by orders of magnitude. By surveying the parameter space of potential LISA sources, we find that counterparts to supermassive black hole binary mergers with total mass M∼105-107M and redshifts z 3 can be localized to within the field of view of astronomical instruments (∼deg2) typically hours to weeks prior to coalescence. This will allow a triggered search for variable electromagnetic counterparts as the merger proceeds, as well as monitoring of the most energetic coalescence phase. A rich set of astrophysical and cosmological applications would emerge from the identification of electromagnetic counterparts to these gravitational-wave standard sirens.

Original languageEnglish
Article number022003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number2
DOIs
Publication statusPublished - Jul 12 2007

Fingerprint

sirens
LISA (observatory)
Mergers
Gravitational Waves
gravitational waves
Harmonic
Coalescence
electromagnetism
harmonics
decomposition
Decompose
coalescing
Black Holes
Binary
Continuous Improvement
Field of View
field of view
Parameter Space
sky
astrophysics

ASJC Scopus subject areas

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

Cite this

Premerger localization of gravitational-wave standard sirens with LISA : Harmonic mode decomposition. / Kocsis, Bence; Haiman, Zoltán; Menou, Kristen; Frei, Z.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 76, No. 2, 022003, 12.07.2007.

Research output: Contribution to journalArticle

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