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Optimizing searches for electromagnetic counterparts of gravitational wave triggers

M. W. CoughlinDivision of Physics, Math, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USADuo TaoCarleton College, Northfield, MN 55057, USAM. ChanUniversity of Glasgow, Glasgow G12 8QQ, UKD. ChatterjeeUniversity of Wisconsin-Milwaukee, Milwaukee, WI 53201, USAN. ChristensenArtemis, Université Côte d’Azur, Observatoire Côte d’Azur, CNRS, CS 34229, F-06304 Nice Cedex 4, FranceS. GhoshUniversity of Wisconsin-Milwaukee, Milwaukee, WI 53201, USAG. GrecoINFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, ItalyYi-Ming HuTianQin Research Center for Gravitational Physics, Sun Yat-sen University, Tangjiawan, Zhuhai 519082, Guangdong, P. R. ChinaS. J. KapadiaUniversity of Wisconsin-Milwaukee, Milwaukee, WI 53201, USAJ. RanaInter-University Centre for Astronomy and Astrophysics, Pune 411007, IndiaO. S. SalafiaINAF – Osservatorio Astronomico di Brera Merate, via E. Bianchi 46, I-23807 Merate, ItalyC. W. StubbsDepartment of Astronomy, Harvard University, Cambridge, MA 02138, USA

2018en

ABI

Annotatsiya

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.

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DOI: 10.1093/mnras/sty1066

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