Directed search for continuous gravitational waves from the possible kilonova remnant G4.8+6.2
arXiv:2211.02855 · doi:10.1103/PhysRevD.106.123024
Abstract
G4.8+6.2 was proposed as a possible kilonova remnant associated with the Korean guest star of AD 1163 in our Milky Way galaxy. Its age is about 860 years according to the historical record. If a neutron star was left in the center of G4.8+6.2, this young neutron star may radiate strong continuous gravitational waves, which could beat the indirect age-based upper limit with current LIGO sensitivity. In this work, we searched such continuous gravitational waves in the frequency band . This search used two days of LIGO O3b data from the Hanford and Livingston detectors. While no signal was found, we placed upper limits on the gravitational wave strain. For comparison, we also showed the latest results of all-sky searches obtained with various search pipelines. With upgrading of the gravitational wave detectors, it will provide the opportunity to see whether a black hole or a neutron star is harbored inside G4.8+6.2.
8 pages, 6 figures, 1 tables
References in corpus (14)
- The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
- X-Ray Flares from Postmerger Millisecond Pulsars
- The Millisecond Magnetar Central Engine in short GRBs
- Pulsar braking and the P-Pdot diagram
- Searching for gravitational waves from Cassiopeia A with LIGO
- Recent searches for continuous gravitational waves
- Central Compact Objects in Supernova Remnants
- Constraints on the dense matter EOS from the measurements of PSR J0737-3039A moment of inertia and PSR J0751+1807 mass
- Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO--Virgo data
- Finding the remnants of the Milky Way's last neutron star mergers
- First Constraining Upper Limits on Gravitational Wave Emission from NS 1987A in SNR 1987A
- A LOFAR search for steep-spectrum pulsars in Supernova Remnants and Pulsar Wind Nebulae
- Gamma-ray Diagnostics of r-process Nucleosynthesis in the Remnants of Galactic Binary Neutron-Star Mergers
- Broadband Emission from a Kilonova Ejecta-Pulsar Wind Nebula System: Late-Time X-ray Afterglow Rebrightening of GRB 170817A