Optimal Search for an Astrophysical Gravitational-Wave Background
نویسندگان
چکیده
منابع مشابه
Search for an emission line of a gravitational wave background
In light of the history of research on an electromagnetic wave spectrum, a sharp emission line of gravitational wave background (GWB) would be an interesting observational target. Here we study an efficient method to detect a line GWB by correlating data of multiple ground-based detectors. We find that the width of frequency bin for coarse graining is a critical parameter, and, with the commonl...
متن کاملFUZZY GRAVITATIONAL SEARCH ALGORITHM AN APPROACH FOR DATA MINING
The concept of intelligently controlling the search process of gravitational search algorithm (GSA) is introduced to develop a novel data mining technique. The proposed method is called fuzzy GSA miner (FGSA-miner). At first a fuzzy controller is designed for adaptively controlling the gravitational coefficient and the number of effective objects, as two important parameters which play major ro...
متن کاملStatistical properties of astrophysical gravitational-wave backgrounds
We investigate how a stochastic gravitational wave background, produced from a discrete set of astrophysical sources, differs from an idealised model consisting of an isotropic, unpolarised, and Gaussian background. We focus, in particular, on the different signatures produced from these two cases, as observed in a cross-correlation search. We show that averaged over many realisations of an ast...
متن کاملGravitational wave radiometry: Mapping a stochastic gravitational wave background
Sanjit Mitra,* Sanjeev Dhurandhar, Tarun Souradeep, Albert Lazzarini,3,x Vuk Mandic,3,k Sukanta Bose,4,{ and Stefan Ballmer** Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007, India Observatoire de la Côte d’Azur, BP 4229, 06304 Nice Cedex 4, France LIGO Laboratory, California Institute of Technology, MS 18-34, Pasadena, California 91125, USA Departme...
متن کاملMapping the gravitational wave background
The gravitational wave sky is expected to have isolated bright sources superimposed on a diffuse gravitational wave background. The background radiation has two components: a confusion limited background from unresolved astrophysical sources; and a cosmological component formed during the birth of the universe. A map of the gravitational wave background can be made by sweeping a gravitational w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review X
سال: 2018
ISSN: 2160-3308
DOI: 10.1103/physrevx.8.021019