ausblenden:
Schlagwörter:
Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO,General Relativity and Quantum Cosmology, gr-qc
Zusammenfassung:
We reanalyse the second data release of the European Pulsar Timing Array
(EPTA) using an observationally-driven model for ensemble properties of pulsar
noise. We show that the revised gravitational wave background properties are in
better agreement with theoretical expectations for the strain spectrum. Our
improved model for ensemble pulsar noise properties reduces a systematic error
at $1\sigma$ level and increases Bayesian odds of Hellings-Downs correlations
by $\sim 10\%$.
