Artykuł w czasopiśmie
Brak miniatury
Licencja

Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model

Autor
Bulik, Tomasz
Abbott, B. P.
Abbott, R.
Abbott, T. D.
Acernese, F.
Ackley, K.
Adams, C.
Adams, T.
Addesso, P.
Adhikari, R. X.
Data publikacji
2017
Abstrakt (EN)

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, h<SUB>0</SUB><SUP>95 %</SUP>=4.0 ×1 0<SUP>-25</SUP>, 8.3 ×1 0<SUP>-25</SUP>, and 3.0 ×1 0<SUP>-25</SUP> 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.

Dyscyplina PBN
astronomia
Czasopismo
Physical Review D
Tom
95
Zeszyt
12
Strony od-do
122003
ISSN
2470-0010
Data udostępnienia w otwartym dostępie
2017-04-12
Licencja otwartego dostępu
Inna