\relax \@writefile{toc}{\contentsline {subsection}{\numberline {19.1}Gravitational radiation}{141}} \@writefile{toc}{\contentsline {subsection}{\numberline {19.2}Gauge transformations}{142}} \@writefile{toc}{\contentsline {subsection}{\numberline {19.3}Plane waves and polarization states}{143}} \@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces The upper panel (Figure 1a) shows the response of a ring of test particles to a gravitational wave with the $+$ polarization mode. The lower panel (Figure 1b) shows the reponse to a wave with $\times $ polarization.}}{146}} \@writefile{toc}{\contentsline {subsection}{\numberline {19.4}Detection of Gravitational Waves}{146}} \@writefile{lof}{\contentsline {figure}{\numberline {2}{\ignorespaces The expected amplitudes of various sources of gravitational radiation as a function of frequency.}}{147}} \@writefile{toc}{\contentsline {subsection}{\numberline {19.5}The Binary pulsar}{147}} \@writefile{lof}{\contentsline {figure}{\numberline {3}{\ignorespaces Schematic diagram of the planned ESA/NASA space mission LISA.}}{148}} \@writefile{lof}{\contentsline {figure}{\numberline {4}{\ignorespaces The upper picture shows a spinning pulsar emitting highly beamed radio waves along the magnetic poles. The lower panel shows a sketch of a binary pulsar system, slowly losing energy by emitting gravitational radiation.}}{149}} \@writefile{lof}{\contentsline {figure}{\numberline {5}{\ignorespaces Accumulated shift of the time of periastron in the PSR1913+16 system relative to an assumed orbit with constant period. The curve shows the predictions of General Relativity for energy losses from gravitational radiation.}}{150}}