Speaker
Description
The Milky Way is expected to contain many ultra-compact binaries (UCBs) with orbital periods on the order of hours. Due to the relatively high wavelengths of these signals these are not detectable by ground-based gravitational wave (GW) detectors, but will be in the range of the future Laser Interferometer Space Antenna (LISA). LISA will be used to construct a catalog of the different UCB sources in the universe, estimating properties such as frequency and system masses. In this work we consider the single-source parameter reconstruction problem: establishing the precision with which LISA can reconstruct the parameters of a source.
This problem has been attacked from several angles, such as the time-costly Markov Chain estimate of the posterior, and direct analytical approximations based on analytical LISA noise curves. We contrast the different methodologies utilized in LISA parameter estimation, establishing what methods are best employed in different regions of parameter space. Finally, we employ this knowledge to establish regions of parameter space that could greatly benefit from EM measurements employed as priors as to investigate the merits of multi-messenger astronomy for UCB parameter estimation.
| Talk category | NOVA Network 2 |
|---|---|
| Second preference | Nova Network 3 or the instrumental splinter could also work. |
