English

Component separation map-making for stochastic gravitational wave background

General Relativity and Quantum Cosmology 2019-04-11 v1

Abstract

Superposition of unresolved sources of gravitational waves (GW) is expected to create a persistent background of stochastic gravitational wave background (SGWB). Different types of astrophysical and cosmological sources are however likely to be present in the background. We present an algorithm for separation of the components with distinct frequency spectral indices into individual sky-maps. To demonstrate the method, we simulate GW signals for different spectral indices and corresponding sky-maps, e.g., point sources like the Virgo cluster and extended ones like the Milky Way Galaxy, and apply our method to recover the injected maps.

Keywords

Cite

@article{arxiv.1904.05056,
  title  = {Component separation map-making for stochastic gravitational wave background},
  author = {Abhishek Parida and Jishnu Suresh and Sanjit Mitra and Sanjay Jhingan},
  journal= {arXiv preprint arXiv:1904.05056},
  year   = {2019}
}

Comments

20 pages, 10 figures

R2 v1 2026-06-23T08:35:07.251Z