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Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
B.P. Abbott et al.강궁원조희석
Publication Year
We present possible observing scenarios for the Advanced LIGO, Advanced
Virgo and KAGRA gravitational-wave detectors over the next decade, with the intention
of providing information to the astronomy community to facilitate planning for
multi-messenger astronomywith gravitationalwaves.We estimate the sensitivity of the
network to transient gravitational-wave signals, and study the capability of the network
to determine the sky location of the source. We report our findings for gravitationalwave
transients, with particular focus on gravitational-wave signals from the inspiral of
binary neutron star systems, which are the most promising targets for multi-messenger
astronomy. The ability to localize the sources of the detected signals depends on the
geographical distribution of the detectors and their relative sensitivity, and 90% credible
regions can be as large as thousands of square degrees when only two sensitive
detectors are operational. Determining the sky position of a significant fraction of
detected signals to areas of 5–20 deg2 requires at least three detectors of sensitivity
within a factor of ∼ 2 of each other and with a broad frequency bandwidth. When
all detectors, including KAGRA and the third LIGO detector in India, reach design
sensitivity, a significant fraction of gravitational-wave signals will be localized to a
few square degrees by gravitational-wave observations alone.
Gravitational-wave; Localization; KAGRA; LIGO; Virgo
Journal Title
Living Reviews in Relativity
Citation Volume
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