Sensitivity Improvements in the Search for Periodic Gravitational Waves Using O1 LIGO Data

Vladimir Dergachev; Maria Alessandra Papa

doi:10.1103/PhysRevLett.123.101101

Sensitivity Improvements in the Search for Periodic Gravitational Waves Using O1 LIGO Data

Phys Rev Lett. 2019 Sep 6;123(10):101101. doi: 10.1103/PhysRevLett.123.101101.

Authors

Vladimir Dergachev^{1

2}, Maria Alessandra Papa^{1

2

3}

Affiliations

¹ Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Callinstrasse 38, 30167 Hannover, Germany.
² Leibniz Universität Hannover, D-30167 Hannover, Germany.
³ University of Wisconsin Milwaukee, 3135 North Maryland Avenue, Milwaukee, Wisconsin 53211, USA.

PMID: 31573308
DOI: 10.1103/PhysRevLett.123.101101

Abstract

We demonstrate a breakthrough in the capabilities of robust, broad-parameter space searches for continuous gravitational waves. With a large scale search for continuous gravitational waves on the O1 LIGO data, we prove that our Falcon search achieves the sensitivity improvements expected from the use of a long coherence length, while maintaining the computational expense within manageable bounds. On these data we set the most constraining upper limits in the gravitational wave amplitude in the band 100-200 Hz. We provide full outlier lists and upper limits near the 0-spin-down band suitable for analysis of signals with small spin-down such as boson condensates around black holes.