Optimizing searches for electromagnetic counterparts of gravitational wave triggers

Michael W. Coughlin, Duo Tao, Man Leong Chan, Deep Chatterjee, Nelson Christensen, Shaon Ghosh, Giuseppe Greco, Yiming Hu, Shasvath Kapadia, Javed Rana, Om Sharan Salafia, Christopher W. Stubbs

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


With the detection of a binary neutron star system and its corresponding electromagnetic counterparts, a new window of transient astronomy has opened. Due to the size of the sky localization regions, which can span hundreds to thousands of square degrees, there are significant benefits to optimizing tilings for these large sky areas. The rich science promised by gravitational wave astronomy has led to the proposal for a variety of proposed tiling and time allocation schemes, and for the first time, we make a systematic comparison of some of these methods. We find that differences of a factor of 2 or more in efficiency are possible, depending on the algorithm employed. For this reason, with future surveys searching for electromagnetic counterparts, care should be taken when selecting tiling, time allocation, and scheduling algorithms to optimize counterpart detection.

Original languageEnglish
Pages (from-to)692-702
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
StatePublished - 21 Jul 2018


  • Gravitational waves


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