Universe | 卷:7 |
Probing Gravitational Waves from Pulsars in Brans–Dicke Theory | |
Paritosh Verma1  | |
[1] National Centre for Nuclear Research, 05-400 Otwock, Poland; | |
关键词: gravitational waves; pulsars; Brans–Dicke theory; | |
DOI : 10.3390/universe7070235 | |
来源: DOAJ |
【 摘 要 】
This paper comprises the theoretical background for the data analysis of gravitational waves (GWs) from spinning neutron stars in Brans–Dicke (BD) theory. Einstein’s general theory of relativity (GR) predicts only two tensor polarization states, but a generic metric theory of gravity can also possess scalar and vector polarization states. The BD theory attempts to modify the GR by varying gravitational constant G, and it has three polarization states. The first two states are the same as in GR, and the third one is scalar polarization. We derive the response of a laser interferometric detector to the GW signal from a spinning neutron star in BD theory. We obtain a statistic based on the maximum likelihood principle to identify the signal in BD theory in the detector’s noise. This statistic generalizes the well known
【 授权许可】
Unknown