The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background

  title={The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background},
  author={Z. Arzoumanian and A. Brazier and S. Burke-Spolaor and S. Chamberlin and S. Chatterjee and B. Christy and J. Cordes and N. Cornish and P. Demorest and X. Deng and T. Dolch and J. Ellis and R. Ferdman and E. Fonseca and N. Garver-Daniels and F. Jenet and G. Jones and V. Kaspi and M. Koop and M. Lam and J. Lazio and L. Levin and A. Lommen and D. Lorimer and Jin Luo and R. Lynch and D. Madison and M. Mclaughlin and S. Mcwilliams and C. Mingarelli and D. Nice and N. Palliyaguru and T. Pennucci and S. Ransom and L. Sampson and S. Sanidas and A. Sesana and X. Siemens and J. Simon and I. Stairs and Dan Stinebring and K. Stovall and J. Swiggum and S. Taylor and M. Vallisneri and R. V. Haasteren and Yan Wang and W. Zhu},
  journal={The Astrophysical Journal},
  • Z. Arzoumanian, A. Brazier, +45 authors W. Zhu
  • Published 2016
  • Physics
  • The Astrophysical Journal
  • We compute upper limits on the nanohertz-frequency isotropic stochastic gravitational wave background (GWB) using the 9 year data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) collaboration. Well-tested Bayesian techniques are used to set upper limits on the dimensionless strain amplitude (at a frequency of 1 yr^(−1) for a GWB from supermassive black hole binaries of A_(gw) < 1.5 x 10^(-15). We also parameterize the GWB spectrum with a broken power-law… CONTINUE READING
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