Early Advanced LIGO binary neutron-star sky localization and parameter estimation

Research output: Contribution to journalConference articlepeer-review


  • B Farr
  • C-J Haster
  • H Middleton
  • L P Singer
  • A L Urban
  • S Vitale
  • K Cannon
  • P B Graff
  • Chad Hanna
  • S Mohapatra
  • C Pankow
  • L R Price
  • John Veitch

Colleges, School and Institutes


2015 will see the first observations of Advanced LIGO and the start of the gravitational-wave (GW) advanced-detector era. One of the most promising sources for ground-based GW detectors are binary neutron-star (BNS) coalescences. In order to use any detections for astrophysics, we must understand the capabilities of our parameter-estimation analysis. By simulating the GWs from an astrophysically motivated population of BNSs, we examine the accuracy of parameter inferences in the early advanced-detector era. We find that sky location, which is important for electromagnetic follow-up, can be determined rapidly (~5 s), but that sky areas may be hundreds of square degrees. The degeneracy between component mass and spin means there is significant uncertainty for measurements of the individual masses and spins; however, the chirp mass is well measured (typically better than 0.1%).

Bibliographic note

4 pages, 2 figures. Published in the proceedings of Amaldi 11


Original languageEnglish
Article number012031
Number of pages5
JournalJournal of Physics: Conference Series
Issue numberconference 1
Publication statusPublished - 2 Jun 2016


  • astro-ph.HE, gr-qc