REAL

Searches for continuous gravitational waves from nine young supernova remnants

Aasi, J. and Abbott, B. P. and Abbott, R. and Abbott, T. and Abernathy, M. R. and Acernese, F. and Ackley, K. and Adams, C. and Adams, T. and Addesso, P. and Adhikari, R. X. and Adya, V. and Affeldt, C. and Agathos, M. and Agatsuma, K. and Aggarwal, N. and Aguiar, O. D. and Ain, A. and Ajith, P. and Alemic, A. and Allen, B. and Allocca, A. and Amariutei, D. and Anderson, S. B. and Anderson, W. G. and Arai, K. and Araya, M. C. and Arceneaux, C. and Areeda, J. S. and Ast, S. and Bojtos, István Péter and Debreczeni, Gergely and Frei, Zsolt and Gergely, Árpád László and Gondán, László and Nagy-Egri, Máté Ferenc and Rácz, István and Raffai, Péter and Szeifert, Gábor and Tápai, Márton and Vasúth, Mátyás Zsolt (2015) Searches for continuous gravitational waves from nine young supernova remnants. ASTROPHYSICAL JOURNAL, 813 (1). ISSN 1538-4357

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Abstract

We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected neutron stars. One target ' s parameters are uncertain enough to warrant two searches, for a total of 10. Each search covered a broad band of frequencies and first and second frequency derivatives for a fixed sky direction. The searches coherently integrated data from the two LIGO interferometers over time spans from 5.3-25.3 days using the matched-filtering. -statistic. We found no evidence of GW signals. We set 95% confidence upper limits as strong (low) as 4 x 10(-25) on intrinsic strain, 2 x 10(-7) on fiducial ellipticity, and 4 x 10(-5) on r-mode amplitude. These beat the indirect limits from energy conservation and are within the range of theoretical predictions for neutron-star ellipticities and r-mode amplitudes.

Item Type: Article
Uncontrolled Keywords: EXPANSION; RADIATION; EMISSION; NEBULA; gravitational waves; ISM: supernova remnants; SPIN-DOWN LIMIT; X-RAY SOURCE; RX J1713.7-3946; G350.1-0.3;
Subjects: Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 19 Jan 2024 10:52
Last Modified: 19 Jan 2024 10:52
URI: http://real.mtak.hu/id/eprint/185315

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