Double Neutron Stars Formed in Globular Clusters: Detecting the Population
Abstract
Double neutron star systems can be divided into sub-populations based on orbital period and eccentricity, and it has been theorized that these sub-populations may arise due to multiple formation routes. To investigate if one possible formation route could be formation within globular clusters and then ejection into the Galactic field, we simulated populations of double neutron star binaries whose origins lie in globular clusters but have since been ejected. We then evolved these populations using the velocities from the second supernova and the Galactic potential to determine where they would exist today. These simulated populations were then passed into an algorithm that searched for pulsars that might be detectable using various pulsar surveys. From these results, we plan to statistically compare the detected population from our simulation to the known double neutron star binaries to determine the likelihood that the known double neutron stars formed through this route. With these results, we aim to determine the plausibility of this formation route, along with characterizing the features of double neutron star systems that form this way, giving us insight into if this is the formation route for any of the known sub-populations. The results could be important to understand the most likely locations of these systems which could help us detect more, enabling more opportunities to study exotic physics and extend tests of general relativity.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23510212R