On the capability to encoding gravitational-wave sky localizations with the Multi Order Coverage data structure: present and future developments
2020-11-11, 07:15–07:30, Times in UTC

The IVOA standard Multi-Order Coverage map (MOC), a data structure based on the HEALPix tessellation of the sky, can be used to encode the enclosed area within a given probability level contour of a gravitational-wave (credible region) sky localization. MOC encoded credible regions can be created, visualised and manipulated using Aladin Desktop, allowing one to compare them with existing surveys and query the VizieR database. These sets of tasks can also be performed via python using the astropy affiliated package mocpy, efficiently displayed in javascript applications with Aladin Lite, and integrated within Jupyter notebooks through the ipyaladin widget.

In this talk, we present an enhanced MOC structure that allows us to include temporal information about gravitational-wave events. This data structure, the SpaceTime-MOC, provides us with an effective way to develop new multi-messenger data analysis tools that will have a crucial role when the third-generation interferometric gravitational wave observatories, such as the Einstein Telescope (ET), will begin in operation.

Theme – Multi-Messenger Astronomy