GW1 - Sources of Gravitational Waves |
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Speaker |
de Araujo, Jose C N |
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Coauthors |
de Araujo, Jose C.N.; Coelho, Jaziel G., Costa, Cesar A.; Ladislau, Samantha M. |
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Gravitational Waves from Pulsars in the Context of Magnetic Ellipticity |
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Abstract |
In one of our previous articles we have considered the role of a time dependent magnetic ellipticity on the pulsars' braking indices and on the putative gravitational waves (GWs) these objects can emit. Since only nine of more than 2000 known pulsars have accurately measured braking indices, it is of interest to extend this study to all known pulsars, in particular as regards GW generation. To do so, we need to know some pulsars' observable quantities such as: periods and their time derivatives, and estimated distances to the Earth. Moreover, we also need to know the pulsars' masses and radii. Our results show a pessimistic prospect for the detection of GWs generated by these pulsars, even for Advanced LIGO and Advanced Virgo, and the planned Einstein Telescope, if the ellipticity has magnetic origin. |
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