Results from an Einstein@Home search for continuous gravitational waves from Cassiopeia A, Vela Jr., and G347.3

J. Ming, M. A. Papa, A. Singh, H.-B. Eggenstein, S. J. Zhu, V. Dergachev, Y. Hu, R. Prix, B. Machenschalk, C. Beer, O. Behnke, and B. Allen
Phys. Rev. D 100, 024063 – Published 29 July 2019
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Abstract

We report results of the most sensitive search to date for periodic gravitational waves from Cassiopeia A, Vela Jr., and G347.3 with frequency between 20 and 1500 Hz. The search was made possible by the computing power provided by the volunteers of the Einstein@Home project and improves on previous results by a factor of 2 across the entire frequency range for all targets. We find no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population, corresponding to sensitivity depths between 54 [1/Hz] and 83 [1/Hz], depending on the target and the frequency range. At the frequency of best strain sensitivity, near 172 Hz, we set 90% confidence upper limits on the gravitational wave intrinsic amplitude of h090%1025, probing ellipticity values for Vela Jr. as low as 3×108, assuming a distance of 200 pc.

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  • Received 25 March 2019

DOI:https://doi.org/10.1103/PhysRevD.100.024063

© 2019 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Gravitation, Cosmology & Astrophysics

Authors & Affiliations

J. Ming1,2,*, M. A. Papa1,3,2,†, A. Singh1,2,4, H.-B. Eggenstein1,2, S. J. Zhu1,2, V. Dergachev1,2, Y. Hu1,2,5, R. Prix1,2, B. Machenschalk1,2, C. Beer1,2,6, O. Behnke1,2, and B. Allen1,3,2

  • 1Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Callinstrasse 38, 30167 Hannover, Germany
  • 2Leibniz Universität Hannover, D-30167 Hannover, Germany
  • 3University of Wisconsin Milwaukee, 3135 N Maryland Ave, Milwaukee, Wisconsin 53211, USA
  • 4The Geophysical Institute, Bjerknes Centre for Climate Research, University of Bergen, 5007 Bergen, Norway
  • 5TianQin Research Center for Gravitational Physics, Sun Yat-Sen University, SYSU Zhuhai Campus, Tangjiawan, Zhuhai 519082, Guangdong, P. R. China
  • 6Rechenkraft.net e.V., 35039 Marburg, Germany

  • *jing.ming@aei.mpg.de
  • maria.alessandra.papa@aei.mpg.de

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Issue

Vol. 100, Iss. 2 — 15 July 2019

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