Deci hertz Laser Interferometer can determine the position of the Coalescing Binary Neutron Stars within an arc minute a week before the final merging event to Black Hole

Ryuichi Takahashi; Takashi Nakamura

doi:10.1086/379112

paper

Deci hertz Laser Interferometer can determine the position of the Coalescing Binary Neutron Stars within an arc minute a week before the final merging event to Black Hole

arXiv:astro-ph/0307390 · doi:10.1086/379112

Abstract

It may be possible to construct a laser interferometer gravitational wave antenna in space with $h_{r m s} \sim 1 0^{- 23}$ at $f \sim 0.1 Hz$ in $\sim 2020$ . This deci hertz antenna may be called DECIGO/BBO,which stand for DECi hertz Interferometer Gravitational wave Observatory and Big Bang Observer, respectively. The analysis of 1-10 years observational data of the coalescing binary neutron stars or black holes at the distance of $\sim$ 300Mpc will give us the spatial position within $\sim$ an arc minute and the time of the coalescence within $\sim 0.1$ sec beforehand. With the knowledge of the accurate position and the time of final merging event, the follow up simultaneous observation using high frequency ( $f \sim 100 Hz$ ) gravitational wave antennae as well as electro-magnetic wave antennae from the radio frequency to the ultra high energy gamma ray will reveal the physics in the enigmatic event of the coalescence and the formation of the black hole.

6 pages, 3 figures. Revised version accepted for publication in ApJL

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Effects of finite arm-length of LISA on analysis of gravitational waves from MBH binaries

Deci hertz Laser Interferometer can determine the position of the Coalescing Binary Neutron Stars within an arc minute a week before the final merging event to Black Hole

Abstract

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