Integrated Sachs-Wolfe effect in massive bigravity

@article{Enander2015IntegratedSE,
  title={Integrated Sachs-Wolfe effect in massive bigravity},
  author={Jonas Enander and Yashar Akrami and Edvard Mortsell and Malin Renneby and Adam R. Solomon},
  journal={Physical Review D},
  year={2015},
  volume={91},
  pages={084046}
}
We study the Integrated Sachs-Wolfe (ISW) effect in ghost-free, massive bigravity, where only one metric couples to matter. We focus on the infinite-branch bigravity (IBB) model which exhibits viab ... 
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