Search for Gravitational Waves from Scorpius X-1 In the First Advanced LIGO Observing Run with A Hidden Markov Model

Authors

B. P. Abbott, California Institute of Technology
R. Abbott, Louisiana State University
T. D. Abbott, University of Salerno
F. Acernese, Complesso Universitario di Monte sant'Angelo
K. Ackley, University of Florida
C. Adams, LIGO
T. Adams, Universite de Savoie
P. Addesso, University of Sannio
R. X. Adhikari, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
V. B. Adya, University of Mississippi
C. Affeldt, University of Illinois at Urbana-Champaign
M. Afrough, National Institute for Subatomic Physics
B. Agarwal, Massachusetts Institute of Technology
K. Agatsuma, National Institute for Space Research
N. Aggarwal, Gran Sasso Science Institute
O. D. Aguiar, National Institute for Nuclear Physics
L. Aiello, Inter-University Centre for Astronomy and Astrophysics India
A. Ain, Tata Institute of Fundamental Research
P. Ajith, University of Wisconsin-Milwaukee
B. Allen, Leibniz University Hannover
G. Allen, University of Pisa
A. Allocca, Sezione di Pisa
H. Almoubayyed, University of Glasgow
P. A. Altin, Australian National University
A. Amato, Institut National de Physique Nucleaire et de Physique des Particules
A. Ananyeva, ComUE Paris-Saclay
S. B. Anderson, California State University Fullerton
W. G. Anderson, European Gravitational Observatory
S. Antier, Chennai Mathematical Institute
S. Appert, University of Rome Tor Vergata
Marc Favata, Montclair State UniversityFollow
Shaon Ghosh, Montclair State UniversityFollow

Document Type

Article

Publication Date

6-15-2017

Journal / Book Title

Physical Review D

Abstract

Results are presented from a semicoherent search for continuous gravitational waves from the brightest low-mass X-ray binary, Scorpius X-1, using data collected during the first Advanced LIGO observing run. The search combines a frequency domain matched filter (Bessel-weighted F-statistic) with a hidden Markov model to track wandering of the neutron star spin frequency. No evidence of gravitational waves is found in the frequency range 60-650 Hz. Frequentist 95% confidence strain upper limits, h095%=4.0×10-25, 8.3×10-25, and 3.0×10-25 for electromagnetically restricted source orientation, unknown polarization, and circular polarization, respectively, are reported at 106 Hz. They are ≤10 times higher than the theoretical torque-balance limit at 106 Hz.

DOI

10.1103/PhysRevD.95.122003

MSU Digital Commons Citation

Abbott, B. P.; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.; Affeldt, C.; Afrough, M.; Agarwal, B.; Agatsuma, K.; Aggarwal, N.; Aguiar, O. D.; Aiello, L.; Ain, A.; Ajith, P.; Allen, B.; Allen, G.; Allocca, A.; Almoubayyed, H.; Altin, P. A.; Amato, A.; Ananyeva, A.; Anderson, S. B.; Anderson, W. G.; Antier, S.; Appert, S.; Favata, Marc; and Ghosh, Shaon, "Search for Gravitational Waves from Scorpius X-1 In the First Advanced LIGO Observing Run with A Hidden Markov Model" (2017). Department of Physics and Astronomy Faculty Scholarship and Creative Works. 121.
https://digitalcommons.montclair.edu/physics-astron-facpubs/121

Published Citation

Abbott, B. P., Abbott, R., Abbott, T. D., Acernese, F., Ackley, K., Adams, C., ... & Cao, H. (2017). Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model. Physical Review D, 95(12), 122003.