Kavli Affiliate: Lijing Shao
| First 5 Authors: Chang Liu, Yacheng Kang, Lijing Shao, ,
| Summary:
We investigated the detection and localization of binary neutron star (BNS)
populations with decihertz gravitational-wave observatories in a realistic
detecting strategy, including real-time observations and early warnings.
Assuming 4 years’ operation of B-DECIGO, we found that the detected BNSs can be
divided into three categories: (a) sources that merge within 1 year, which
could be localized with an uncertainty of $DeltaOmega sim 10^{0}$ deg$^2$;
(b) sources that merge in 1-4 years, which take up three quarters of the total
events and yield the most precise angular resolution with $Delta Omegasim
10^{-2}$ deg$^2$ and time-of-merger accuracy with $Delta t_csim 10^{-1}$ s;
and (c) sources that do not merge during the 4-yr mission window, which enable
possible early warnings, with $Delta Omegasim 10^{-1}$ deg$^2$ and $Delta
t_csim 10^{0}$ s. Furthermore, we compared the pros and cons of B-DECIGO with
the Einstein Telescope, and explored the prospects of detections using 3 other
decihertz observatories and 4 BNS population models. In realistic observing
scenarios, we found that decihertz detectors could even provide early-warning
alerts to a source decades before its merger while their localizations are
still more accurate than ground-based facilities. Finally we found a decrease
of events when considering the confusion noise, but this could be partially
solved by a proper noise subtraction.
| Search Query: ArXiv Query: search_query=au:”Lijing Shao”&id_list=&start=0&max_results=10