Abstract
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 astronomy with gravitational waves. 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 gravitational-wave 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 deg(2) requires at least three detectors of sensitivity within a factor of similar to 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.
Original language | English |
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Article number | 3 |
Number of pages | 57 |
Journal | Living Reviews in Relativity |
Volume | 21 |
DOIs | |
Publication status | Published - 26 Apr 2018 |
Externally published | Yes |
Keywords
- Gravitational waves
- Gravitational-wave detectors
- Electromagnetic counterparts
- Data analysis
- BLACK-HOLE MERGERS
- GAMMA-RAY BURSTS
- SWIFT FOLLOW-UP
- NEUTRON-STAR
- ELECTROMAGNETIC SIGNALS
- COMPACT BINARIES
- EVENTS GW150914
- SEARCH
- COUNTERPART
- RATES